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Fencer Intel
medium 6.8

CVE-2011-1778 json

Buffer overflow in libarchive through 2.8.5 allows remote attackers to cause a denial of service (application crash) or possibly execute ar…

published 2012-04-13 14 y ago modified 2026-06-16 4 mo ago also EUVD-2011-1776

cvss
6.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.2%
EPSS 4.2% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

Buffer overflow in libarchive through 2.8.5 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted TAR archive.

Patch / fix

  • libarchive Debian 14, Debian 13, Debian 12 2.8.5-5

debian advisories DEBIAN-CVE-2011-1778

  • libarchive RHEL 6 2.8.3-3.el6_1

red hat advisories RHSA-2011:1507

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-2011-1778 updated cvss 5.1

Libarchive multiple security issues

  • Red Hat Enterprise Linux Server (v. 6) libarchive 2.8.3-3.el6_1 Red Hat Enterprise Linux Server Optional (v. 6) libarchive 2.8.3-3.el6_1
    fixed: vendor fix RHSA-2011:1507

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

4.20% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.