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f5F5F5:K98121587
HistoryAug 17, 2021 - 12:00 a.m.

K98121587 : glibc vulnerability CVE-2021-35942

2021-08-1700:00:00
my.f5.com
6

7.1 High

AI Score

Confidence

High

0.011 Low

EPSS

Percentile

84.8%

Security Advisory Description

The wordexp function in the GNU C Library (aka glibc) through 2.33 may crash or read arbitrary memory in parse_param (in posix/wordexp.c) when called with an untrusted, crafted pattern, potentially resulting in a denial of service or disclosure of information. This occurs because atoi was used but strtoul should have been used to ensure correct calculations. (CVE-2021-35942)

Impact

A local attacker can pass untrusted specially-crafted regular expressions to the wordexp function to cause an integer overflow, potentially leading to a denial of service (DoS) or restricted information disclosure.