Out-of-bounds Read Affecting tar package, versions <1.28-2.1ubuntu0.2+esm2


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.07% (32nd percentile)

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  • Snyk IDSNYK-UBUNTU1604-TAR-3261141
  • published1 Feb 2023
  • disclosed30 Jan 2023

Introduced: 30 Jan 2023

CVE-2022-48303  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Ubuntu:16.04 tar to version 1.28-2.1ubuntu0.2+esm2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tar package and not the tar package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

GNU Tar through 1.34 has a one-byte out-of-bounds read that results in use of uninitialized memory for a conditional jump. Exploitation to change the flow of control has not been demonstrated. The issue occurs in from_header in list.c via a V7 archive in which mtime has approximately 11 whitespace characters.

CVSS Scores

version 3.1