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CVE-2011-1487

Status Candidate

Overview

The (1) lc, (2) lcfirst, (3) uc, and (4) ucfirst functions in Perl 5.10.x, 5.11.x, and 5.12.x through 5.12.3, and 5.13.x through 5.13.11, do not apply the taint attribute to the return value upon processing tainted input, which might allow context-dependent attackers to bypass the taint protection mechanism via a crafted string.

Related Files

Gentoo Linux Security Advisory 201311-17
Posted Nov 30, 2013
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201311-17 - Multiple vulnerabilities were found in Perl, the worst of which could allow a local attacker to cause a Denial of Service condition. Versions less than 5.12.3-r1 are affected.

tags | advisory, denial of service, local, perl, vulnerability
systems | linux, gentoo
advisories | CVE-2008-5302, CVE-2008-5303, CVE-2010-1158, CVE-2011-0761, CVE-2011-1487
MD5 | f6e51b3fc762277e2834ea5fa6741e05
Debian Security Advisory 2265-1
Posted Jun 20, 2011
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2265-1 - Mark Martinec discovered that Perl incorrectly clears the tainted flag on values returned by case conversion functions such as "lc". This may expose preexisting vulnerabilities in applications which use these functions while processing untrusted input. No such applications are known at this stage. Such applications will cease to work when this security update is applied because taint checks are designed to prevent such unsafe use of untrusted input data.

tags | advisory, perl, vulnerability
systems | linux, debian
advisories | CVE-2011-1487
MD5 | ebb7170862c406a88729f0ea12216d53
Mandriva Linux Security Advisory 2011-091
Posted May 18, 2011
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2011-091 - The ucfirst functions in Perl 5.10.x, 5.11.x, and 5.12.x through 5.12.3, and 5.13.x through 5.13.11, do not apply the taint attribute to the return value upon processing tainted input, which might allow context-dependent attackers to bypass the taint protection mechanism via a crafted string.

tags | advisory, perl
systems | linux, mandriva
advisories | CVE-2011-1487
MD5 | 893797c3f921900b207ad81e51128e57
Ubuntu Security Notice USN-1129-1
Posted May 4, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1129-1 - It was discovered that the Safe.pm Perl module incorrectly handled Safe::reval and Safe::rdo access restrictions. It was discovered that the CGI.pm Perl module incorrectly handled certain MIME boundary strings. It was discovered that the CGI.pm Perl module incorrectly handled newline characters. It was discovered that the lc, lcfirst, uc, and ucfirst functions did not properly apply the taint attribute when processing tainted input.

tags | advisory, cgi, perl
systems | linux, ubuntu
advisories | CVE-2010-1168, CVE-2010-1447, CVE-2010-2761, CVE-2010-4410, CVE-2010-4411, CVE-2011-1487
MD5 | 24f27408d6090a9d485d70cb6d450a7f
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