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Oracle Linux: CVE-2021-3156: ELSA-2021-0221: sudo security update (IMPORTANT) (Multiple Advisories)

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Oracle Linux: CVE-2021-3156: ELSA-2021-0221: sudo security update (IMPORTANT) (Multiple Advisories)

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
01/26/2021
Created
01/28/2021
Added
01/27/2021
Modified
12/19/2024

Description

Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character. A flaw was found in sudo. A heap-based buffer overflow was found in the way sudo parses command line arguments. This flaw is exploitable by any local user who can execute the sudo command (by default, any local user can execute sudo) without authentication. Successful exploitation of this flaw could lead to privilege escalation. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Solution(s)

  • oracle-linux-upgrade-sudo
  • oracle-linux-upgrade-sudo-devel

References

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