IBM Support

Security Bulletin: AIX is vulnerable to denial of service vulnerabilities

Security Bulletin


Summary

UPDATED Apr 5 (See 'Change History' for full update history. Current update corrected the affected upper fileset levels for VIOS to show that VIOS 3.1.2.50 and 3.1.3.30 are affected. Added iFixes for VIOS 3.1.2.50 and 3.1.3.30. This update applies to the kernel, perfstat, and pfcdd portions of the bulletin.) Vulnerabilities in the AIX kernel and kernel extensions could allow a non-privileged local user to cause a denial of service (CVE-2022-43380, CVE-2022-40233, CVE-2022-39165, CVE-2022-43848, CVE-2022-43849, CVE-2022-39164).

Vulnerability Details

CVEID:   CVE-2022-43380
DESCRIPTION:   IBM AIX 7.1, 7.2, 7.3, and VIOS 3.1 could allow a non-privileged local user to exploit a vulnerability in the AIX NFS kernel extension to cause a denial of service. IBM X-Force ID: 238640.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/238640 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-2022-40233
DESCRIPTION:   IBM AIX 7.1, 7.2, 7.3, and VIOS 3.1 could allow a non-privileged local user to exploit a vulnerability in the AIX TCP/IP kernel extension to cause a denial of service. IBM X-Force ID: 235599.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/235599 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-2022-39165
DESCRIPTION:   IBM AIX 7.1, 7.2, 7.3, and VIOS 3.1could allow a non-privileged local user to exploit a vulnerability in CAA to cause a denial of service. IBM X-Force ID: 235183.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/235183 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-2022-43848
DESCRIPTION:   IBM AIX 7.1, 7.2, 7.3, and VIOS 3.1 could allow a non-privileged local user to exploit a vulnerability in the AIX perfstat kernel extension to cause a denial of service. IBM X-Force ID: 239169.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/239169 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-2022-43849
DESCRIPTION:   IBM AIX 7.1, 7.2, 7.3, and VIOS 3.1could allow a non-privileged local user to exploit a vulnerability in the AIX pfcdd kernel extension to cause a denial of service. IBM X-Force ID: 239170.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/239170 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-2022-39164
DESCRIPTION:   IBM AIX 7.1, 7.2, 7.3, and VIOS 3.1could allow a non-privileged local user to exploit a vulnerability in the AIX kernel to cause a denial of service. IBM X-Force ID: 235181.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/235181 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)

Affected Products and Versions

Affected Product(s)Version(s)
AIX7.1
AIX7.2
AIX7.3
VIOS3.1

 

The vulnerabilities in the following filesets are being addressed:

 

FilesetLower LevelUpper Level
bos.cluster.rte7.1.5.07.1.5.39
bos.mp647.1.5.07.1.5.47
bos.net.nfs.client7.1.5.07.1.5.38
bos.net.tcp.client7.1.5.07.1.5.41
bos.perf.perfstat7.1.5.07.1.5.32
bos.pfcdd.rte7.1.5.07.1.5.34
bos.cluster.rte7.2.5.07.2.5.2
bos.mp647.2.5.07.2.5.6
bos.net.nfs.client7.2.5.07.2.5.3
bos.net.tcp.client_core7.2.5.07.2.5.4
bos.perf.perfstat7.2.5.07.2.5.0
bos.pfcdd.rte7.2.5.07.2.5.2
bos.cluster.rte7.2.5.1007.2.5.102
bos.mp647.2.5.1007.2.5.106
bos.net.nfs.client7.2.5.1007.2.5.101
bos.net.tcp.client_core7.2.5.1007.2.5.104
bos.perf.perfstat7.2.5.1007.2.5.101
bos.pfcdd.rte7.2.5.1007.2.5.102
bos.mp647.2.5.2007.2.5.201
bos.pfcdd.rte7.2.5.2007.2.5.200
bos.perf.perfstat7.2.5.2007.2.5.200
bos.cluster.rte7.3.0.07.3.0.1
bos.mp647.3.0.07.3.0.4
bos.net.nfs.client7.3.0.07.3.0.1
bos.net.tcp.client_core7.3.0.07.3.0.2
bos.perf.perfstat7.3.0.07.3.0.1
bos.pfcdd.rte7.3.0.07.3.0.2
bos.mp647.3.1.07.3.1.1
bos.perf.pefstate7.3.1.07.3.1.0

 

To find out whether the affected filesets are installed on your systems, refer to the lslpp command found in AIX user's guide.

 

Example: lslpp -L | grep -i bos.mp64

 

Remediation/Fixes

A. APARS

 

IBM has assigned the following APARs to this problem:

 

For the kernel:

AIX LevelAPARSP
7.1.5IJ43967SP12
7.2.5IJ43869SP06
7.3.0IJ43875SP04
7.3.1IJ44594SP02

 

VIOS LevelAPARSP
3.1.2IJ439953.1.2.60
3.1.3IJ455413.1.3.40
3.1.4IJ438693.1.4.20

 

For the CAA kernel extension:

AIX LevelAPARSP
7.1.5IJ43099SP11
7.2.5IJ41975SP06
7.3.0IJ42938SP03

 

VIOS LevelAPARSP
3.1.2IJ441153.1.2.50
3.1.3IJ419753.1.3.30

 

For the NFS kernel extension:

AIX LevelAPARSP
7.1.5IJ43072SP11
7.2.5IJ42159SP06
7.3.0IJ43468SP03

 

VIOS LevelAPARSP
3.1.2IJ436743.1.2.50
3.1.3IJ433143.1.3.30

 

For the TCP/IP kernel extension:

AIX LevelAPARSP
7.1.5IJ43098SP11
7.2.5IJ41974SP06
7.3.0IJ42937SP03

 

VIOS LevelAPARSP
3.1.2IJ435983.1.2.50
3.1.3IJ432173.1.3.30

 

For the perfstat kernel extension:

AIX LevelAPARSP
7.1.5IJ43970SP12
7.2.5IJ43876SP06
7.3.0IJ43891SP04
7.3.1IJ44595SP02

 

VIOS LevelAPARSP
3.1.2IJ441143.1.2.60
3.1.3IJ438763.1.3.40
3.1.4IJ438763.1.4.20

 

For the pfcdd kernel extension:

AIX LevelAPARSP
7.1.5IJ43980SP12
7.2.5IJ43877SP06
7.3.0IJ43893SP04

 

VIOS LevelAPARSP
3.1.2IJ461053.1.2.60
3.1.3IJ460683.1.3.40
3.1.4IJ438773.1.4.20

 

Subscribe to the APARs here:

https://www.ibm.com/support/pages/apar/[APAR Number]

 

By subscribing, you will receive periodic email alerting you to the status of the APAR, and a link to download the fix once it becomes available.

 

B. FIXES

 

IBM strongly recommends addressing the vulnerability now.

 

AIX and VIOS fixes are available.

 

An LPAR system reboot is required to complete the iFix installation, or Live Update may be used on AIX 7.2 and 7.3 to avoid a reboot.

 

The AIX and VIOS fixes can be downloaded via https from:

https://aix.software.ibm.com/aix/efixes/security/kernel_fix5.tar

 

The link above is to a tar file containing this signed advisory, fix packages, and OpenSSL signatures for each package. The fixes below include prerequisite checking. This will enforce the correct mapping between the fixes and AIX Technology Levels.

 

For the kernel:

AIX LevelInterim Fix
7.1.5.8IJ43967m8a.221110.epkg.Z
7.1.5.9IJ43967m9a.221102.epkg.Z
7.1.5.9IJ43967m9b.221111.epkg.Z
7.1.5.10IJ43967mAa.221024.epkg.Z
7.1.5.11IJ43967sBa.230314.epkg.Z
7.2.5.3IJ43869m3c.230216.epkg.Z
7.2.5.3IJ43869m3d.230216.epkg.Z
7.2.5.4IJ43869m4b.230216.epkg.Z
7.2.5.5IJ43869m5b.230216.epkg.Z
7.3.0.1IJ43875m1b.230216.epkg.Z
7.3.0.2IJ43875m2b.230216.epkg.Z
7.3.0.3IJ43875s3a.230314.epkg.Z
7.3.1.1IJ44594m1a.230216.epkg.Z

Please note that the above table refers to AIX TL/SP level as opposed to fileset level, i.e., 7.2.5.4 is AIX 7200-05-04.

 

NOTE: Multiple iFixes are provided for AIX 7100-05-09 and 7200-05-03.

IJ43967m9a is for AIX 7100-05-09 with bos.mp64 fileset level 7.1.5.45.

IJ43967m9b is for AIX 7100-05-09 with bos.mp64 fileset level 7.1.5.44.

IJ43869m3c is for AIX 7200-05-03 with bos.mp64 fileset level 7.2.5.103.

IJ43869m3d is for AIX 7200-05-03 with bos.mp64 fileset level 7.2.5.101.

 

Please reference the Affected Products and Version section above for help with checking installed fileset levels.

 

VIOS LevelInterim Fix
3.1.2.21IJ43995m2b.221027.epkg.Z
3.1.2.30IJ43995m2c.221212.epkg.Z
3.1.2.40IJ43995m2a.221025.epkg.Z
3.1.2.50IJ43995s5a.230404.epkg.Z
3.1.3.10IJ43869m3b.221212.epkg.Z
3.1.3.14IJ43869m3a.221025.epkg.Z
3.1.3.21IJ43869m4a.221017.epkg.Z
3.1.3.30IJ45541s3b.230404.epkg.Z
3.1.4.10IJ43869s5a.221212.epkg.Z

 

For the CAA kernel extension:

AIX LevelInterim Fix
7.1.5.8IJ43099m8a.221110.epkg.Z
7.1.5.9IJ43099m9a.221102.epkg.Z
7.1.5.9IJ43099m9b.221213.epkg.Z
7.1.5.10IJ43099sAa.221024.epkg.Z
7.2.5.3IJ41975m3a.221027.epkg.Z
7.2.5.3IJ41975m3b.221212.epkg.Z
7.2.5.4IJ41975s4a.221017.epkg.Z
7.3.0.1IJ42938m1a.221027.epkg.Z
7.3.0.2IJ42938s2a.221018.epkg.Z

Please note that the above table refers to AIX TL/SP level as opposed to fileset level, i.e., 7.2.5.4 is AIX 7200-05-04.

 

NOTE: Multiple iFixes are provided for AIX 7100-05-09 and 7200-05-03.

IJ43099m9a is for AIX 7100-05-09 with bos.cluster.rte fileset level 7.1.5.38.

IJ43099m9b is for AIX 7100-05-09 with bos.cluster.rte fileset level 7.1.5.37.

IJ41975m3a is for AIX 7200-05-03 with bos.cluster.rte fileset level 7.2.5.101.

IJ41975m3b is for AIX 7200-05-03 with bos.cluster.rte fileset level 7.2.5.100.

 

VIOS LevelInterim Fix
3.1.2.21IJ44115m2a.221102.epkg.Z
3.1.2.30IJ44115m2a.221102.epkg.Z
3.1.2.40IJ44115m2b.221213.epkg.Z
3.1.3.10IJ41975m3b.221212.epkg.Z
3.1.3.14IJ41975m3a.221027.epkg.Z
3.1.3.21IJ41975s4a.221017.epkg.Z

 

For the NFS kernel extension:

AIX LevelInterim Fix
7.1.5.8IJ43072s8a.221110.epkg.Z
7.1.5.9IJ43072sAa.221024.epkg.Z
7.1.5.10IJ43072sAa.221024.epkg.Z
7.2.5.3IJ42159s3a.221025.epkg.Z
7.2.5.3IJ42159s3b.221213.epkg.Z
7.2.5.4IJ42159s4a.221017.epkg.Z
7.3.0.1IJ43468s1a.221025.epkg.Z
7.3.0.2IJ43468s2a.221017.epkg.Z

Please note that the above table refers to AIX TL/SP level as opposed to fileset level, i.e., 7.2.5.4 is AIX 7200-05-04.

 

NOTE: Multiple iFixes are provided for AIX 7200-05-03.

IJ42159s3a is for AIX 7200-05-03 with bos.adt.include fileset level 7.2.5.102.

IJ42159s3b is for AIX 7200-05-03 with bos.adt.include fileset level 7.2.5.101.

 

VIOS LevelInterim Fix
3.1.2.21IJ43674s2b.221027.epkg.Z
3.1.2.30IJ43674s2c.221213.epkg.Z
3.1.2.40IJ43674s2c.221213.epkg.Z
3.1.3.10IJ42159s3b.221213.epkg.Z
3.1.3.14IJ42159s3a.221025.epkg.Z
3.1.3.21IJ42159s4a.221017.epkg.Z

 

For the TCP/IP kernel extension:

AIX LevelInterim Fix
7.1.5.8IJ43098s8a.221110.epkg.Z
7.1.5.9IJ43098s9a.221102.epkg.Z
7.1.5.9IJ43098s9b.221213.epkg.Z
7.1.5.10IJ43098sAa.221024.epkg.Z
7.2.5.3IJ41974s3a.221025.epkg.Z
7.2.5.3IJ41974s3b.221213.epkg.Z
7.2.5.4IJ41974s4a.221017.epkg.Z
7.3.0.1IJ42937s1a.221027.epkg.Z
7.3.0.2IJ42937s2a.221018.epkg.Z

Please note that the above table refers to AIX TL/SP level as opposed to fileset level, i.e., 7.2.5.4 is AIX 7200-05-04.

 

NOTE: Multiple iFixes are provided for AIX 7100-05-09 and 7200-05-03.

IJ43098s9a is for AIX 7100-05-09 with bos.net.tcp.client fileset level 7.1.5.40.

IJ43098s9b is for AIX 7100-05-09 with bos.net.tcp.client fileset level 7.1.5.39.

IJ41974s3a is for AIX 7200-05-03 with bos.net.tcp.client_core fileset level 7.2.5.102.

IJ41974s3b is for AIX 7200-05-03 with bos.net.tcp.client_core fileset level 7.2.5.101.

 

VIOS LevelInterim Fix
3.1.2.21IJ43598s2b.221027.epkg.Z
3.1.2.30IJ43598s2d.221213.epkg.Z
3.1.2.40IJ43598s2c.221213.epkg.Z
3.1.3.10IJ41974s3b.221213.epkg.Z
3.1.3.14IJ41974s3a.221025.epkg.Z
3.1.3.21IJ41974s4a.221017.epkg.Z

 

For the perfstat kernel extension:

AIX LevelInterim Fix
7.1.5.8IJ43970sAa.221024.epkg.Z
7.1.5.9IJ43970sAa.221024.epkg.Z
7.1.5.10IJ43970sAa.221024.epkg.Z
7.1.5.11IJ43970sAa.221024.epkg.Z
7.2.5.3IJ43876s3a.221025.epkg.Z
7.2.5.3IJ43876s3b.221213.epkg.Z
7.2.5.4IJ43876s4a.221017.epkg.Z
7.2.5.5IJ43876s5a.221212.epkg.Z
7.3.0.1IJ43891s2a.221018.epkg.Z
7.3.0.2IJ43891s2a.221018.epkg.Z
7.3.0.3IJ43891s3a.230314.epkg.Z
7.3.1.1IJ44595s1a.221212.epkg.Z

Please note that the above table refers to AIX TL/SP level as opposed to fileset level, i.e., 7.2.5.4 is AIX 7200-05-04.

 

NOTE: Multiple iFixes are provided for AIX 7200-05-03.

IJ43876s3a is for AIX 7200-05-03 with bos.perf.perfstat fileset level 7.2.5.101.

IJ43876s3b is for AIX 7200-05-03 with bos.perf.perfstat fileset level 7.2.5.100.

 

VIOS LevelInterim Fix
3.1.2.21IJ44114s2a.221102.epkg.Z
3.1.2.30IJ44114s2a.221102.epkg.Z
3.1.2.40IJ44114s2a.221102.epkg.Z
3.1.2.50IJ44114s2a.221102.epkg.Z
3.1.3.10IJ43876s3b.221213.epkg.Z
3.1.3.14IJ43876s3a.221025.epkg.Z
3.1.3.21IJ43876s4a.221017.epkg.Z
3.1.3.30IJ43876s4a.221017.epkg.Z
3.1.4.10IJ43876s5a.221212.epkg.Z

 

For the pfcdd kernel extension:

AIX LevelInterim Fix
7.1.5.8IJ43980sAa.221024.epkg.Z
7.1.5.9IJ43980sAa.221024.epkg.Z
7.1.5.10IJ43980sAa.221024.epkg.Z
7.1.5.11IJ43980sBa.230314.epkg.Z
7.2.5.3IJ43877s3a.221025.epkg.Z
7.2.5.4IJ43877s4a.221017.epkg.Z
7.2.5.5IJ43877s5a.230123.epkg.Z
7.3.0.1IJ43893s1a.221027.epkg.Z
7.3.0.2IJ43893s2a.221018.epkg.Z
7.3.0.3IJ43893s3a.230314.epkg.Z

Please note that the above table refers to AIX TL/SP level as opposed to fileset level, i.e., 7.2.5.4 is AIX 7200-05-04.

 

VIOS LevelInterim Fix
3.1.2.21IJ44116s2a.221102.epkg.Z
3.1.2.30IJ44116s2a.221102.epkg.Z
3.1.2.40IJ44116s2a.221102.epkg.Z
3.1.2.50IJ46105s5a.230404.epkg.Z
3.1.3.10IJ43877s3a.221025.epkg.Z
3.1.3.14IJ43877s3a.221025.epkg.Z
3.1.3.21IJ43877s4a.221017.epkg.Z
3.1.3.30IJ46068s3a.230404.epkg.Z
3.1.4.10IJ43877s5a.230123.epkg.Z

 

The fixes are cumulative and address previously issued AIX/VIOS kernel security bulletins with respect to SP and TL, which includes:

https://aix.software.ibm.com/aix/efixes/security/kernel_advisory4.asc

https://www.ibm.com/support/pages/node/6619721

https://aix.software.ibm.com/aix/efixes/security/kernel_advisory3.asc

https://www.ibm.com/support/pages/node/6558948

https://aix.software.ibm.com/aix/efixes/security/kernel_advisory2.asc

https://www.ibm.com/support/pages/node/6483875

https://aix.software.ibm.com/aix/efixes/security/trace_advisory.asc

https://www.ibm.com/support/pages/node/6464369

 

To extract the fixes from the tar file:

 

tar xvf kernel_fix5.tar

cd kernel_fix5

 

Verify you have retrieved the fixes intact:

 

The checksums below were generated using the

"openssl dgst -sha256 [filename]" command as the following:

 

openssl dgst -sha256filename
5f14f1ce6115aaea99abc509e8f9c29d66f449e28cbdff957a78f98a0d2c1319IJ41974s3a.221025.epkg.Z
f461d5ac0225674d0b5fd2ce0ea1314c413f73d941e3cab1df2a8e907e479c81IJ41974s3b.221213.epkg.Z
7353aec35438c207ecd34e9efd8773f8d2cf623ff3aaf1c9b21a8c6cc6389ba3IJ41974s4a.221017.epkg.Z
ac6aac0b2364a1dccf99133869bcf5962a30d14c44abd72985d58b070b3e7743IJ41975m3a.221027.epkg.Z
9320a9ecad0ed683f838f484a512de20f88d281940b63e13f334dbac0e023dd1IJ41975m3b.221212.epkg.Z
53ed081ce54eaf4a278761c7b80b72e28643d3f07a8ab54b2977652b1cfa9410IJ41975s4a.221017.epkg.Z
dd932b380464cc89938b42bf845d08d1aee3ab6a50ca7bc57292ddda34b849beIJ42159s3a.221025.epkg.Z
0ad3ac0184e19719156e0b1c4af6f97501a64bb3a26543ddbda27cc975c8ad76IJ42159s3b.221213.epkg.Z
ce81ba4ce3db613bb6635ff1496c4b65a0a09c24f8f6d0dd96606bc48b420cf5IJ42159s4a.221017.epkg.Z
4b3d56260e136ad0b4484db0d2b4dd3924a97c5bc839f80d7ea4c21c42eb3840IJ42937s1a.221027.epkg.Z
7081ec434fa5ff2c976f935aa6b51f4f51f6641dfd6132640c73dbaea7a6c1cfIJ42937s2a.221018.epkg.Z
6f6d8cf2b6a52f409fa29dc72ef2ada536ea67dc907769c384f88fa60a39b622IJ42938m1a.221027.epkg.Z
581acd69242d1f86779590e5ed0734de72b6f2452a6b499dceaa8c2b4eadad7dIJ42938s2a.221018.epkg.Z
7d5e82ac6027d9fb1b4546a1de78220af56e77b87d2b7cb744d544aa64b20c62IJ43072s8a.221110.epkg.Z
dc281b603fe5b7d7aa79e061a60e01f7a39eaa30233b545ee760798208ac6adfIJ43072sAa.221024.epkg.Z
c6701b36ff490220433aa81466f5a60e182ba2559e07df7fdbd986329e187e1aIJ43098s8a.221110.epkg.Z
1aeded2670910f1aeb2c07cef08d2d6afce788e8de58794db1e93567b5dbed77IJ43098s9a.221102.epkg.Z
3ac4dd5bc1f3688a2b73e0da29c64cbafff025e7c1a05b5008752d3c8d8b5835IJ43098s9b.221213.epkg.Z
470310e914d030445412685cd06897804a547b6f26f5b12499c9c3012906083fIJ43098sAa.221024.epkg.Z
dad650e7a3f3ac27cc4ca0c3df9bbb1b0dc60ca449f0127398f7c2686c4fb67fIJ43099m8a.221110.epkg.Z
a5eef69f5ad7999aac0090c6f44f2b830ed5fe704a03650c78834300433fefd6IJ43099m9a.221102.epkg.Z
0690a7f9c117bb685540bda389f4f4a99020a45927a5481e72256f1912b2b5a0IJ43099m9b.221213.epkg.Z
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These sums should match exactly. The OpenSSL signatures in the tar file and on this advisory can also be used to verify the integrity of the fixes. If the sums or signatures cannot be confirmed, contact IBM Support at http://ibm.com/support/ and describe the discrepancy. 

 

openssl dgst -sha256 -verify [pubkey_file] -signature [advisory_file].sig [advisory_file]

openssl dgst -sha256 -verify [pubkey_file] -signature [ifix_file].sig [ifix_file]

 

Published advisory OpenSSL signature file location:

https://aix.software.ibm.com/aix/efixes/security/kernel_advisory5.asc.sig

 

C. FIX AND INTERIM FIX INSTALLATION

 

An LPAR system reboot is required to complete the iFix installation, or Live Update may be used on AIX 7.2 and 7.3 to avoid a reboot.

 

If possible, it is recommended that a mksysb backup of the system be created. Verify it is both bootable and readable before proceeding.

 

To preview a fix installation:

 

installp -a -d fix_name -p all # where fix_name is the name of the

# fix package being previewed.

 

To install a fix package:

 

installp -a -d fix_name -X all # where fix_name is the name of the

# fix package being installed.

 

Interim fixes have had limited functional and regression testing but not the full regression testing that takes place for Service Packs; however, IBM does fully support them.

 

Interim fix management documentation can be found at:

http://www14.software.ibm.com/webapp/set2/sas/f/aix.efixmgmt/home.html

 

To preview an interim fix installation:

 

emgr -e ipkg_name -p # where ipkg_name is the name of the

# interim fix package being previewed.

 

To install an interim fix package:

 

emgr -e ipkg_name -X # where ipkg_name is the name of the

# interim fix package being installed.

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

Off

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

AIX Security Bulletin (ASCII format)

Acknowledgement

Change History

5 Apr 2023: Corrected the affected upper fileset levels for VIOS to show that VIOS 3.1.2.50 and 3.1.3.30 are affected. Added iFixes for VIOS 3.1.2.50 and 3.1.3.30. This update applies to the kernel, perfstat, and pfcdd portions of the bulletin.
17 Mar 2023: Corrected the affected upper fileset levels for AIX 7.1 TL5 to show that SP11 is affected. Corrected the affected upper fileset levels for AIX 7.3 TL0 to show that SP03 is affected. Added iFixes for 7.1 TL5 SP10 and 7.3 TL0 SP03. The update applies to the kernel, perfstat, and pfcdd portions of the bulletin.
17 Feb 2023: New kernel iFixes provided for AIX 7.2 and 7.3. The 'new' ifixes resolve a technical issue which was discovered with the 'original' ifixes when applied with Live update.  Both sets of ifixes (new and original) resolve the security vulnerabilities described in this bulletin. The new iFixes are only needed if you experience an issue with the original ifixes after applying using Live update or if you plan to use Live Update to apply these iFixes (new or original) in the future: https://www.ibm.com/support/pages/apar/IJ45291.
10 Feb 2023: Added pfcdd iFix for AIX 7.2 TL5 SP5 and VIOS 3.1.4.10.
4 Jan 2023: Updated CVE information
14 Dec 2022: Initial Publication

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.

Document Location

Worldwide

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Document Information

Modified date:
05 April 2023

UID

ibm16847947

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