CVE-2011-2939

N/A Unknown
Published: January 13, 2012 Modified: April 29, 2026
View on NVD

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.

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References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://cpansearch.perl.org/src/FLORA/perl-5.14.2/pod/perldelta.pod
Source: secalert@redhat.com
http://perl5.git.perl.org/perl.git/commitdiff/e46d973584785af1f445c4dedbee4243419cb860#patch5
Source: secalert@redhat.com
Exploit Patch
http://search.cpan.org/~flora/perl-5.14.2/pod/perldelta.pod#Encode_decode_xs_n-byte_heap-overflow_%28CVE-2011-2939%29
Source: secalert@redhat.com
http://secunia.com/advisories/46172
Source: secalert@redhat.com
http://secunia.com/advisories/46989
Source: secalert@redhat.com
http://secunia.com/advisories/51457
Source: secalert@redhat.com
http://secunia.com/advisories/55314
Source: secalert@redhat.com
http://www.mandriva.com/security/advisories?name=MDVSA-2012:008
Source: secalert@redhat.com
http://www.openwall.com/lists/oss-security/2011/08/18/8
Source: secalert@redhat.com
http://www.openwall.com/lists/oss-security/2011/08/19/17
Source: secalert@redhat.com
Patch
http://www.redhat.com/support/errata/RHSA-2011-1424.html
Source: secalert@redhat.com
http://www.securityfocus.com/bid/49858
Source: secalert@redhat.com
http://www.ubuntu.com/usn/USN-1643-1
Source: secalert@redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=731246
Source: secalert@redhat.com
Patch
http://cpansearch.perl.org/src/FLORA/perl-5.14.2/pod/perldelta.pod
Source: af854a3a-2127-422b-91ae-364da2661108
http://perl5.git.perl.org/perl.git/commitdiff/e46d973584785af1f445c4dedbee4243419cb860#patch5
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Patch
http://search.cpan.org/~flora/perl-5.14.2/pod/perldelta.pod#Encode_decode_xs_n-byte_heap-overflow_%28CVE-2011-2939%29
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/46172
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/46989
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/51457
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/55314
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.mandriva.com/security/advisories?name=MDVSA-2012:008
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2011/08/18/8
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2011/08/19/17
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
http://www.redhat.com/support/errata/RHSA-2011-1424.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/bid/49858
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.ubuntu.com/usn/USN-1643-1
Source: af854a3a-2127-422b-91ae-364da2661108
https://bugzilla.redhat.com/show_bug.cgi?id=731246
Source: af854a3a-2127-422b-91ae-364da2661108
Patch

28 reference(s) from NVD

Quick Stats

CVSS v3 Score
N/A / 10.0
EPSS (Exploit Probability)
2.7%
84th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-189

Affected Vendors

perl dan_kogai

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