CVE-2011-2939 — Heap-based Buffer Overflow in Libencode-perl

CWE-189CWE-122 — Heap-based Buffer Overflow8 documents7 sources
Severity
5.1MEDIUMNVD
EPSS
6.6%
top 8.83%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
PerlDebian Libencode-perlDebian Perl+1 more
Timeline
PublishedJan 13
Latest updateMay 14

Description

Off-by-one error in the decode_xs function in Unicode/Unicode.xs in the Encode module before 2.44, as used in Perl before 5.15.6, might allow context-dependent attackers to cause a denial of service (memory corruption) via a crafted Unicode string, which triggers a heap-based buffer overflow.

CVSS vector

AV:N/AC:H/C:P/I:P/A:PExploitability: 4.9 | Impact: 6.4

Affected Packages5 packages

▶debiandebian/libencode-perl< libencode-perl 2.44-1 (bookworm)
▶debiandebian/perl< libencode-perl 2.44-1 (bookworm)
▶Debianperl/perl< 5.12.4-4+3
▶NVDperl/perl5.14.2+38

Patches

Patch: perl5.git.perl.org ↗Patch: www.openwall.com ↗Patch: bugzilla.redhat.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-76hr-qp66-cq6j: Off-by-one error in the decode_xs function in Unicode/Unicode↗2022-05-14
▶
OSV
CVE-2011-2939: Off-by-one error in the decode_xs function in Unicode/Unicode↗2012-01-13
▶

📋Vendor Advisories

3
Ubuntu
Perl vulnerabilities↗2012-11-30
▶
Red Hat
Perl decode_xs heap-based buffer overflow↗2011-08-09
▶
Debian
CVE-2011-2939: libencode-perl - Off-by-one error in the decode_xs function in Unicode/Unicode.xs in the Encode m...↗2011
▶

💬Community

2
Bugzilla
CVE-2011-2939 Perl decode_xs heap-based buffer overflow [fedora-all]↗2011-10-04
▶
Bugzilla
CVE-2011-2939 Perl decode_xs heap-based buffer overflow↗2011-08-17
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CVE-2011-2939 — Heap-based Buffer Overflow | cvebase