PT-2021-4562 · Klibc+4 · Klibc+4
Ben Hutchings
·
Published
2021-04-28
·
Updated
2023-11-07
·
CVE-2021-31873
CVSS v3.1
9.8
Critical
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
klibc versions prior to 2.0.9
Description
The issue is related to the
malloc() function in the klibc library, which may result in an integer overflow and a subsequent heap buffer overflow. This could allow a remote attacker to access confidential data, compromise its integrity, and cause a denial of service.Recommendations
For versions prior to 2.0.9, update to version 2.0.9 or later to resolve the issue.
As a temporary workaround, consider restricting the use of the
malloc() function until a patch is available.Fix
Integer Overflow
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Astra Linux
Linuxmint
Ubuntu
Klibc