CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
81.4%
Debian Security Advisory DSA-5016-1 [email protected]
https://www.debian.org/security/ Salvatore Bonaccorso
December 01, 2021 https://www.debian.org/security/faq
Package : nss
CVE ID : CVE-2021-43527
Tavis Ormandy discovered that nss, the Mozilla Network Security Service
library, is prone to a heap overflow flaw when verifying DSA or RSA-PPS
signatures, which could result in denial of service or potentially the
execution of arbitrary code.
For the oldstable distribution (buster), this problem has been fixed
in version 2:3.42.1-1+deb10u4.
For the stable distribution (bullseye), this problem has been fixed in
version 2:3.61-1+deb11u1.
We recommend that you upgrade your nss packages.
For the detailed security status of nss please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/nss
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: [email protected]
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 10 | mips64el | libnss3-tools | < 2:3.42.1-1+deb10u4 | libnss3-tools_2:3.42.1-1+deb10u4_mips64el.deb |
Debian | 9 | amd64 | libnss3 | < 2:3.26.2-1.1+deb9u3 | libnss3_2:3.26.2-1.1+deb9u3_amd64.deb |
Debian | 10 | ppc64el | libnss3-tools | < 2:3.42.1-1+deb10u4 | libnss3-tools_2:3.42.1-1+deb10u4_ppc64el.deb |
Debian | 9 | all | nss | < 2:3.26.2-1.1+deb9u3 | nss_2:3.26.2-1.1+deb9u3_all.deb |
Debian | 10 | mips64el | libnss3-dbgsym | < 2:3.42.1-1+deb10u4 | libnss3-dbgsym_2:3.42.1-1+deb10u4_mips64el.deb |
Debian | 11 | mipsel | libnss3-dbgsym | < 2:3.61-1+deb11u1 | libnss3-dbgsym_2:3.61-1+deb11u1_mipsel.deb |
Debian | 10 | armel | libnss3-dbgsym | < 2:3.42.1-1+deb10u4 | libnss3-dbgsym_2:3.42.1-1+deb10u4_armel.deb |
Debian | 9 | armhf | libnss3 | < 2:3.26.2-1.1+deb9u3 | libnss3_2:3.26.2-1.1+deb9u3_armhf.deb |
Debian | 9 | arm64 | libnss3 | < 2:3.26.2-1.1+deb9u3 | libnss3_2:3.26.2-1.1+deb9u3_arm64.deb |
Debian | 11 | amd64 | libnss3-dev | < 2:3.61-1+deb11u1 | libnss3-dev_2:3.61-1+deb11u1_amd64.deb |
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
81.4%