Public Date:
1014492: CVE-2013-4397 libtar: Heap-based buffer overflows by expanding a specially-crafted archive

The MITRE CVE dictionary describes this issue as:

Multiple integer overflows in the th_read function in lib/block.c in libtar before 1.2.20 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long (1) name or (2) link in an archive, which triggers a heap-based buffer overflow.

Find out more about CVE-2013-4397 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 5.1
Base Metrics AV:N/AC:H/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity High
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux version 6 (libtar) RHSA-2013:1418 2013-10-10

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 7 libtar Not affected


Red Hat would like to thank Timo Warns for reporting this issue.