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.
NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.
|Base Score:||9.1||Base Metrics:||AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H|
|Access Vector:||Network||Attack Complexity:||Low|
|Privileges Required:||None||User Interaction:||None|
|Integrity Impact:||None||Availability Impact:||High|
|Oracle Linux version 8 (glibc)||ELSA-2021-4358||2021-11-16|
|Oracle Linux version 8 (glibc)||ELSA-2021-9560||2021-11-23|
This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team