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Fencer Intel
medium 4.3

CVE-2012-1457 json

The TAR file parser in Avira AntiVir 7.11.1.163, Antiy Labs AVL SDK 2.0.3.7, avast!

published 2012-03-21 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-0035

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
99.9%
EPSS 99.9% chance of exploitation in 30 days, percentile 99.9%
public exploits
0
none known

Summary

The TAR file parser in Avira AntiVir 7.11.1.163, Antiy Labs AVL SDK 2.0.3.7, avast! Antivirus 4.8.1351.0 and 5.0.677.0, AVG Anti-Virus 10.0.0.1190, Bitdefender 7.2, Quick Heal (aka Cat QuickHeal) 11.00, ClamAV 0.96.4, Command Antivirus 5.2.11.5, Emsisoft Anti-Malware 5.1.0.1, eSafe 7.0.17.0, F-Prot Antivirus 4.6.2.117, G Data AntiVirus 21, Ikarus Virus Utilities T3 Command Line Scanner 1.1.97.0, Jiangmin Antivirus 13.0.900, K7 AntiVirus 9.77.3565, Kaspersky Anti-Virus 7.0.0.125, McAfee Anti-Virus Scanning Engine 5.400.0.1158, McAfee Gateway (formerly Webwasher) 2010.1C, Antimalware Engine 1.1.6402.0 in Microsoft Security Essentials 2.0, NOD32 Antivirus 5795, Norman Antivirus 6.06.12, PC Tools AntiVirus 7.0.3.5, Rising Antivirus 22.83.00.03, AVEngine 20101.3.0.103 in Symantec Endpoint Protection 11, Trend Micro AntiVirus 9.120.0.1004, Trend Micro HouseCall 9.120.0.1004, VBA32 3.12.14.2, and VirusBuster 13.6.151.0 allows remote attackers to bypass malware detection via a TAR archive entry with a length field that exceeds the total TAR file size. NOTE: this may later be SPLIT into multiple CVEs if additional information is published showing that the error occurred independently in different TAR parser implementations.

Patch / fix

  • clamav Debian 14, Debian 13, Debian 12 0.97.5+dfsg-1

debian advisories DEBIAN-CVE-2012-1457

  • clamav openSUSE Tumbleweed 0.99.2-4.1

opensuse advisories openSUSE-SU-2024:10571-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2012-1457 updated cvss 5.0

clamav: overly long length field in tar files evade detection

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

99.85% chance of exploitation in the next 30 days, higher than 99.9% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.