Security Bulletin: IBM QRadar Network Security is affected by multiple vulnerabilities in kernel.

Vulnerability Details

CVEID:   CVE-2017-18551
DESCRIPTION:   Linux kernel is vulnerable to a buffer overflow, caused by a missing bounds check in drivers/i2c/i2c-core-smbus.c. An attacker could overflow an array and perform unspecified actions.
CVSS Base score: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/169650 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

CVEID:   CVE-2018-20836
DESCRIPTION:   Linux Kernel is vulnerable to a denial of service, caused by a race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c. A local attacker could exploit this vulnerability to cause the system to crash.
CVSS Base score: 4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/161631 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID:   CVE-2019-12614
DESCRIPTION:   Linux Kernel is vulnerable to a denial of service, caused by a NULL pointer dereference in the dlpar_parse_cc_property function in arch/powerpc/platforms/pseries/dlpar.c. By sending a specially-crafted request, a local attacker could exploit this vulnerability to cause the system to crash.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/162121 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:   CVE-2019-15807
DESCRIPTION:   Linux Kernel is vulnerable to a denial of service, caused by a memory leak in sas_expander.c when SAS expander discovery fails. By sending a specially-crafted request, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/166306 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:   CVE-2019-16231
DESCRIPTION:   Linux Kernel is vulnerable to a denial of service, caused by a NULL pointer dereference in drivers/net/fjes/fjes_main.c. By sending a specially-crafted request, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/166961 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:   CVE-2019-16233
DESCRIPTION:   Linux Kernel is vulnerable to a denial of service, caused by a NULL pointer dereference in drivers/scsi/qla2xxx/qla_os.c. By sending a specially-crafted request, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/166945 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:   CVE-2019-16994
DESCRIPTION:   Linux Kernel is vulnerable to a denial of service, caused by a memory leak in the sit_init_net function in net/ipv6/sit.c. By sending a specially-crafted request, a local attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/168245 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:   CVE-2019-17053
DESCRIPTION:   Linux Kernel could allow a local authenticated attacker to bypass security restrictions, caused by not enforcing CAP_NET_RAW in the ieee802154_create function in net/ieee802154/socket.c in the AF_IEEE802154 network module. By sending a specially-crafted request, an attacker could exploit this vulnerability to create a raw socket.
CVSS Base score: 5.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/168360 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N)

CVEID:   CVE-2019-17055
DESCRIPTION:   Linux Kernel could allow a local authenticated attacker to bypass security restrictions, caused by not enforcing CAP_NET_RAW in the base_sock_create function in drivers/isdn/mISDN/socket.c in the AF_ISDN network module. By sending a specially-crafted request, an attacker could exploit this vulnerability to create a raw socket.
CVSS Base score: 5.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/168362 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N)

CVEID:   CVE-2019-18808
DESCRIPTION:   Linux Kernel is vulnerable to a denial of service, caused by a memory leak in the ccp_run_sha_cmd function in drivers/crypto/ccp/ccp-ops.c. By sending a specially-crafted request, a remote attacker could exploit this vulnerability to consume all available memory resources.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/171181 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:   CVE-2019-19058
DESCRIPTION:   Linux Kernel is vulnerable to a denial of service, caused by a memory leak in the alloc_sgtable() function in drivers/net/wireless/intel/iwlwifi/fw/dbg.c. A remote attacker could exploit this vulnerability to consume all available memory resources.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/171766 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:   CVE-2019-19062
DESCRIPTION:   Linux Kernel is vulnerable to a denial of service, caused by a memory leak in the crypto_report() function in crypto/crypto_user_base.c. A remote attacker could exploit this vulnerability to consume all available memory resources.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/171776 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:   CVE-2019-19063
DESCRIPTION:   Linux Kernel is vulnerable to a denial of service, caused by multiple memory leaks in the rtl_usb_probe() function in drivers/net/wireless/realtek/rtlwifi/usb.c. A remote attacker could exploit this vulnerability to consume all available memory resources.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/171775 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:   CVE-2019-19332
DESCRIPTION:   Linux Kernel is vulnerable to a denial of service, caused by an out-of-bounds memory write in KVM hypervisor. By sending a specially crafted request, a local authenticated attacker could exploit this vulnerability to cause the application to crash.
CVSS Base score: 5.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/173143 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

CVEID:   CVE-2019-19447
DESCRIPTION:   Linux Kernel could allow a local attacker to execute arbitrary code on the system, caused by a use-after-free flaw in the ext4_put_super function in fs/ext4/super.c. By using a specially-crafted image file, an attacker could exploit this vulnerability to execute arbitrary code or cause a denial of service condition on the system.
CVSS Base score: 8.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/172760 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID:   CVE-2019-19523
DESCRIPTION:   Linux Kernel is vulnerable to a denial of service, caused by a use-after-free condition in drivers/usb/misc/adutux.c. By connecting a specially-crafted USB device, an attacker could exploit this vulnerability to cause a kernel panic.
CVSS Base score: 4.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/172520 for the current score.
CVSS Vector: (CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:   CVE-2019-19524
DESCRIPTION:   Linux Kernel is vulnerable to a denial of service, caused by a use-after-free condition in drivers/input/ff-memless.c. By connecting a specially-crafted USB device, an attacker could exploit this vulnerability to cause a kernel panic.
CVSS Base score: 4.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/172521 for the current score.
CVSS Vector: (CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:   CVE-2019-19534
DESCRIPTION:   Linux Kernel could allow a local attacker to obtain sensitive information, caused by missing memory initialization in drivers/net/can/usb/peak_usb/pcan_usb_core.c. By connecting a specially-crafted USB device, an attacker could exploit this vulnerability to obtain sensitive information.
CVSS Base score: 2.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/172530 for the current score.
CVSS Vector: (CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID:   CVE-2019-19537
DESCRIPTION:   Linux Kernel is vulnerable to a denial of service, caused by a race condition in drivers/usb/core/file.c. By connecting a specially-crafted USB device, an attacker could exploit this vulnerability to cause the system to stop responding.
CVSS Base score: 4.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/172608 for the current score.
CVSS Vector: (CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:   CVE-2019-19767
DESCRIPTION:   Linux Kernel is vulnerable to a denial of service, caused by a use-after-free in the __ext4_expand_extra_isize and ext4_xattr_set_entry functions in fs/ext4/inode.c and fs/ext4/super.c. By sending a specially-crafted request, a local attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/173054 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:   CVE-2019-20054
DESCRIPTION:   Linux Kernel is vulnerable to a denial of service, caused by a NULL pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c. By sending a specially crafted request, a local attacker could exploit this vulnerability to cause the application to crash.
CVSS Base score: 4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/173738 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID:   CVE-2019-20636
DESCRIPTION:   Linux Linux could allow a local attacker to execute arbitrary code on the system, caused by an out-of-bounds write flaw in the input_set_keycode function. By using a specially-crafted keycode table, an attacker could exploit this vulnerability to execute arbitrary code or cause a denial of service condition on the system.
CVSS Base score: 8.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/181202 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID:   CVE-2019-20934
DESCRIPTION:   Linux Kernel is vulnerable to a denial of service, caused by a use-after-free in the show_numa_stats function. By sending a specially-crafted request, a local attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/165068 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:   CVE-2019-9454
DESCRIPTION:   Google Android could allow a local authenticated attacker to gain elevated privileges on the system, caused by a memory corruption in the i2c driver. An attacker could exploit this vulnerability to escalate privileges.
CVSS Base score: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/166734 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

CVEID:   CVE-2020-10732
DESCRIPTION:   Linux Kernel could allow a local authenticated attacker to obtain sensitive information, caused by a flaw in the implementation of Userspace core dumps. By sending a specially crafted request, an attacker could exploit this vulnerability to obtain sensitive information or cause a program to crash.
CVSS Base score: 3.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/181554 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N)

CVEID:   CVE-2020-10742
DESCRIPTION:   Linux Kernel is vulnerable to a denial of service, caused by a stack-based buffer overflow during Direct IO write. A local authenticated attacker could exploit this vulnerability using a reach out of the index after one memory allocation by kmalloc to cause the NFS client to crash.
CVSS Base score: 6
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/185376 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H)

CVEID:   CVE-2020-10751
DESCRIPTION:   Linux Kernel could allow a local authenticated attacker to bypass security restrictions, caused by a flaw with improper validation of first netlink message by the SELinux LSM hook implementation. By sending a specially-crafted request, an attacker could exploit this vulnerability to allow or deny the rest of the netlink messages within the skb with the granted permission without further processing.
CVSS Base score: 6.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/182451 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N)

CVEID:   CVE-2020-11565
DESCRIPTION:   Linux Kernel could allow a local attacker to execute arbitrary code on the system, caused by a stack-based out-of-bounds write flaw in the mpol_parse_str function in mm/mempolicy.c. By sending a specially-crafted request, an attacker could exploit this vulnerability to execute arbitrary code or cause a denial of service condition on the system.
CVSS Base score: 8.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/179100 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID:   CVE-2020-12770
DESCRIPTION:   Linux Kernel is vulnerable to a denial of service, caused by an issue with sg_write lacks an sg_remove_request call in a certain failure case. By sending a specially-crafted request, a local attacker could exploit this vulnerability to cause a panic.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/181750 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:   CVE-2020-12826
DESCRIPTION:   Linux Kernel could allow a local attacker to bypass security restrictions, caused by a signal access-control issue in exec_id in include/linux/sched.h. By sending a specially-crafted request, an attacker could exploit this vulnerability to bypass checks to send any signal to a privileged process.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/182113 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)

CVEID:   CVE-2020-1749
DESCRIPTION:   Linux Kernel could allow a remote attacker to obtain sensitive information, caused by an error in the implementation of some ipv6 protocols in encrypted Ipsec tunnels. By using man-in-the-middle attack techniques, an attacker could exploit this vulnerability to read the traffic unencrypted.
CVSS Base score: 5.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/181872 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVEID:   CVE-2020-25704
DESCRIPTION:   Linux Kernel is vulnerable to a denial of service, caused by a memory leak in the perf_event_parse_addr_filter function. By executing a specially-crafted program, a local attacker could exploit this vulnerability to exhaust available memory on the system.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/191348 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:   CVE-2020-36322
DESCRIPTION:   Linux Kernel is vulnerable to a denial of service, caused by a flaw in the fuse_do_getattr function in the FUSE filesystem implementation in . By sending a specially-crafted request, a local attacker could exploit this vulnerability to cause the system to crash.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/200230 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:   CVE-2020-36385
DESCRIPTION:   Linux Kernel could allow a local attacker to execute arbitrary code on the system, caused by a use-after-free flaw in drivers/infiniband/core/ucma.c. By sending a specially-crafted request, an attacker could exploit this vulnerability to execute arbitrary code or cause a denial of service condition on the system.
CVSS Base score: 8.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/203845 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID:   CVE-2020-8647
DESCRIPTION:   Linux kernel could allow a remote attacker to obtain sensitive information, caused by a use-after-free in the vc_do_resize function of drivers/tty/vt/vt.c. An attacker could exploit this vulnerability to read memory that should not be available for access.
CVSS Base score: 4.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/175842 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L)

CVEID:   CVE-2020-9383
DESCRIPTION:   Linux Kernel could allow a local attacker to obtain sensitive information, caused by an out-of-bounds read flaw in the set_fdc function in drivers/block/floppy.c. By sending a specially-crafted request, an attacker could exploit this vulnerability to obtain sensitive information or cause a denial of service condition.
CVSS Base score: 7.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/176792 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H)

CVEID:   CVE-2021-27363
DESCRIPTION:   Linux Kernel could allow a local authenticated attacker to obtain sensitive information, caused by a kernel pointer leak when show_transport_handle function in drivers/scsi/scsi_transport_iscsi.c is called. By sending a specially-crafted request, an attacker could exploit this vulnerability to obtain the address of the iscsi_transport structure information, and use this information to launch further attacks against the affected system.
CVSS Base score: 5.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/197857 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)

CVEID:   CVE-2021-27364
DESCRIPTION:   Linux Kernel could allow a local authenticated attacker to execute arbitrary commands on the system, caused by a flaw in the iscsi_if_recv_msg function in drivers/scsi/scsi_transport_iscsi.c. By sending specially-crafted Netlink messages, an attacker could exploit this vulnerability to connect to the iscsi NETLINK socket and send arbitrary commands to the kernel.
CVSS Base score: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/197858 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

CVEID:   CVE-2021-27365
DESCRIPTION:   Linux Kernel could allow a local authenticated attacker to obtain sensitive information, caused by an issue when certain iSCSI data structures do not have appropriate length constraints or checks, and can exceed the PAGE_SIZE value. By sending a specially-crafted Netlink message, an attacker could exploit this vulnerability to obtain memory information, and use this information to launch further attacks against the affected system.
CVSS Base score: 5.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/197859 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)

CVEID:   CVE-2021-33033
DESCRIPTION:   Linux Kernel could allow a local attacker to execute arbitrary code on the system, caused by a use-after-free flaw in the cipso_v4_genopt function in net/ipv4/cipso_ipv4.c. By sending a specially-crafted request, an attacker could exploit this vulnerability to execute arbitrary code or cause a denial of service condition on the system.
CVSS Base score: 8.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/203148 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID:   CVE-2021-33034
DESCRIPTION:   Linux Kernel could allow a local attacker to execute arbitrary code on the system, caused by a use-after-free flaw when destroying an hci_chan in net/bluetooth/hci_event.c. By sending a specially-crafted request, an attacker could exploit this vulnerability to execute arbitrary code or cause a denial of service condition on the system.
CVSS Base score: 8.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/203149 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID:   CVE-2021-33909
DESCRIPTION:   Linux Kernel could allow a local attacker to gain elevated privileges on the system, caused by an out-of-bounds write in fs/seq_file.c. By sending a specially-crafted request, an attacker could exploit this vulnerability to escalate privileges to root.
CVSS Base score: 8.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/205906 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID:   CVE-2021-3715
DESCRIPTION:   Linux Kernel could allow a local authenticated attacker to gain elevated privileges on the system, caused by a use-after-free in route4_change() in net/sched/cls_route.c. By sending a specially-crafted request, an attacker could exploit this vulnerability to escalate privileges.
CVSS Base score: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/208836 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)