CVE-2011-1779

Multiple use-after-free vulnerabilities in libarchive 2.8.4 and 2.8.5 allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted (1) TAR archive or (2) ISO9660 image.

Published: 2012-04-13 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-1779 is rated Moderate Risk (51/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.46%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2011-1779

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 0.83% 0.46% -0.37%
2 2025-03-29 0.54% 0.83% +0.29%
3 2023-03-07 — 0.54% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-1779

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2011-1779

OS Trackers for CVE-2011-1779

vendor priority summary link
debian not yet assigned CVE-2011-1779 not yet assigned priority: Debian including 1 source packages (libarchive), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2011-1779
gentoo normal CVE-2011-1779: 1 GLSA(s) (201406-02), 1 atom(s) (app-arch/libarchive); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2011-1779
redhat medium — https://access.redhat.com/security/cve/CVE-2011-1779
ubuntu medium CVE-2011-1779 medium priority: Ubuntu including 1 source packages (libarchive), 6 status rows across 6 suites (hardy, lucid, maverick, natty, oneiric, upstream): not-affected 4, ignored 1, needs-triage 1. https://ubuntu.com/security/CVE-2011-1779

Affected software / configurations for CVE-2011-1779

Vendor Product Version Raw CPE
freebsd libarchive 2.8.4 cpe:2.3:a:freebsd:libarchive:2.8.4:*:*:*:*:*:*:*
freebsd libarchive 2.8.5 cpe:2.3:a:freebsd:libarchive:2.8.5:*:*:*:*:*:*:*

References for CVE-2011-1779

cvelogic Threat Intelligence