CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
87.4%
Issue Overview:
A heap-based buffer overflow was found in the NSC_EncryptUpdate() function in Mozilla nss. A remote attacker could trigger this flaw via SRTP encrypt or decrypt operations, to execute arbitrary code with the permissions of the user running the application (compiled with nss). While the attack complexity is high, the impact to confidentiality, integrity, and availability are high as well. (CVE-2019-11745)
Empty or malformed p256-ECDH public keys may trigger a segmentation fault due values being improperly sanitized before being copied into memory and used. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8. (CVE-2019-11729)
Affected Packages:
nss
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update nss to update your system.
New Packages:
aarch64:
nss-3.44.0-7.amzn2.aarch64
nss-tools-3.44.0-7.amzn2.aarch64
nss-sysinit-3.44.0-7.amzn2.aarch64
nss-devel-3.44.0-7.amzn2.aarch64
nss-pkcs11-devel-3.44.0-7.amzn2.aarch64
nss-debuginfo-3.44.0-7.amzn2.aarch64
i686:
nss-3.44.0-7.amzn2.i686
nss-tools-3.44.0-7.amzn2.i686
nss-sysinit-3.44.0-7.amzn2.i686
nss-devel-3.44.0-7.amzn2.i686
nss-pkcs11-devel-3.44.0-7.amzn2.i686
nss-debuginfo-3.44.0-7.amzn2.i686
src:
nss-3.44.0-7.amzn2.src
x86_64:
nss-3.44.0-7.amzn2.x86_64
nss-tools-3.44.0-7.amzn2.x86_64
nss-sysinit-3.44.0-7.amzn2.x86_64
nss-devel-3.44.0-7.amzn2.x86_64
nss-pkcs11-devel-3.44.0-7.amzn2.x86_64
nss-debuginfo-3.44.0-7.amzn2.x86_64
Red Hat: CVE-2019-11729, CVE-2019-11745
Mitre: CVE-2019-11729, CVE-2019-11745
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 2 | aarch64 | nss | < 3.44.0-7.amzn2 | nss-3.44.0-7.amzn2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | nss-tools | < 3.44.0-7.amzn2 | nss-tools-3.44.0-7.amzn2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | nss-sysinit | < 3.44.0-7.amzn2 | nss-sysinit-3.44.0-7.amzn2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | nss-devel | < 3.44.0-7.amzn2 | nss-devel-3.44.0-7.amzn2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | nss-pkcs11-devel | < 3.44.0-7.amzn2 | nss-pkcs11-devel-3.44.0-7.amzn2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | nss-debuginfo | < 3.44.0-7.amzn2 | nss-debuginfo-3.44.0-7.amzn2.aarch64.rpm |
Amazon Linux | 2 | i686 | nss | < 3.44.0-7.amzn2 | nss-3.44.0-7.amzn2.i686.rpm |
Amazon Linux | 2 | i686 | nss-tools | < 3.44.0-7.amzn2 | nss-tools-3.44.0-7.amzn2.i686.rpm |
Amazon Linux | 2 | i686 | nss-sysinit | < 3.44.0-7.amzn2 | nss-sysinit-3.44.0-7.amzn2.i686.rpm |
Amazon Linux | 2 | i686 | nss-devel | < 3.44.0-7.amzn2 | nss-devel-3.44.0-7.amzn2.i686.rpm |
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
87.4%