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Ubuntu: (Multiple Advisories) (CVE-2021-3999): GNU C Library vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2021-3999): GNU C Library vulnerabilities

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
02/04/2022
Created
03/16/2022
Added
03/02/2022
Modified
03/22/2023

Description

A flaw was found in glibc. An off-by-one buffer overflow and underflow in getcwd() may lead to memory corruption when the size of the buffer is exactly 1. A local attacker who can control the input buffer and size passed to getcwd() in a setuid program could use this flaw to potentially execute arbitrary code and escalate their privileges on the system.

Solution(s)

  • ubuntu-upgrade-libc6

References

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