Security Bulletin: IBM MQ Appliance is affected by multiple nss and nspr vulnerabilities

CVEID:   CVE-2019-11719
DESCRIPTION:   Mozilla Firefox could allow a remote attacker to obtain sensitive information, caused by an out-of-bounds read when importing a curve25519 private key in PKCS#8format. By persuading a victim to visit a specially-crafted website, a remote attacker could exploit this vulnerability using unknown attack vectors to obtain sensitive information.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/163512 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N)

CVEID:   CVE-2019-11727
DESCRIPTION:   Mozilla Firefox could allow a remote attacker to bypass security restrictions. By persuading a victim to visit a specially-crafted website, an attacker could exploit this vulnerability to force Network Security Services (NSS) to sign PKCS#1 v1.5 signatures to be used for TLS 1.3 messages.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/163519 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N)

CVEID:   CVE-2019-11756
DESCRIPTION:   Mozilla Firefox could allow a remote attacker to execute arbitrary code on the system, caused by a use-after-free of SFTKSession object. By persuading a victim to visit a specially-crafted website, a remote attacker could exploit this vulnerability using unknown attack vectors to execute arbitrary code on the vulnerable system or cause a denial of service.
CVSS Base score: 8.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/172454 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

CVEID:   CVE-2019-17006
DESCRIPTION:   Mozilla Network Security Services (NSS), as used in Mozilla Firefox is vulnerable to a heap-based buffer overflow, caused by improper bounds checking when using certain cryptographic primitives. By sending an overly long argument, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause a denial of service.
CVSS Base score: 8.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/174125 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID:   CVE-2019-17023
DESCRIPTION:   Mozilla Firefox could allow a remote attacker to bypass security restrictions, caused by the negotiation of a lower protocol after a HelloRetryRequest is sent. By persuading a victim to visit a specially-crafted website, a remote attacker could exploit this vulnerability to trigger an invalid state transition in the TLS State Machine to ignore incoming Application Data records.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/174062 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N)

CVEID:   CVE-2020-12403
DESCRIPTION:   Mozilla Network Security Services (NSS), as used in Mozilla Firefox could allow a remote attacker to obtain sensitive information, caused by the implementation of CHACHA20-POLY1305 decryption with undersized tag. By persuading a victim to visit a specially-crafted website, a remote attacker could exploit this vulnerability using multi-part Chacha20 to trigger an out-of-bounds read and obtain sensitive information.
CVSS Base score: 6.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/187746 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:H)