CVE-2021-31872 :: Enginsight Vulnerability Database

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	9.8 CRITICAL	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
mitre	CNA	---				---
CVE	ADP	---				---

Base Score

CVSS 3.x

EPSS Score

Percentile: 77%

Vendor	Product	Version
klibc_project	klibc	𝑥 < 2.0.9
debian	debian_linux	9.0

𝑥

= Vulnerable software versions

Debian Releases

Debian Product

Codename

klibc

bullseye	2.0.8-6.1 fixed
bookworm	2.0.12-1 fixed
sid	2.0.13-4 fixed
trixie	2.0.13-4 fixed

Ubuntu Releases

Ubuntu Product

Codename

klibc

jammy	not-affected
impish	not-affected
hirsute	ignored
groovy	ignored
focal	Fixed 2.0.7-1ubuntu5.1 released
bionic	Fixed 2.0.4-9ubuntu2.1 released
xenial	Fixed 2.0.4-8ubuntu1.16.04.4+esm1 released
trusty	Fixed 2.0.3-0ubuntu1.14.04.3+esm2 released

Common Weakness Enumeration

CWE-190 - Integer Overflow or Wraparound
The software performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control.

References

http://www.openwall.com/lists/oss-security/2021/04/30/1

https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=9b1c91577aef7f2e72c3aa11a27749160bd278ff

https://kernel.org/pub/linux/libs/klibc/2.0/

https://lists.debian.org/debian-lts-announce/2021/06/msg00025.html

https://lists.zytor.com/archives/klibc/2021-April/004593.html

http://www.openwall.com/lists/oss-security/2021/04/30/1

https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=9b1c91577aef7f2e72c3aa11a27749160bd278ff

https://kernel.org/pub/linux/libs/klibc/2.0/

https://lists.debian.org/debian-lts-announce/2021/06/msg00025.html

https://lists.zytor.com/archives/klibc/2021-April/004593.html