CVE-2011-1487
Status: ModifiedMedium (5)—💥 Exploit
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.
CVSS
- Version: 2.0
- Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N
- Base score: 5
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 11%
- Percentile among all scored CVEs: 96
- Score date: 10/7/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
💥 Public exploits
Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.
- Published on Exploit-DB · Perl 5.x - 'lc()' / 'uc()' TAINT Mode Protection Security Bypass (3/30/2011)
Affected technologies (1)
CWEs
- CWE-264
References
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/057891.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/057971.html
- http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html
- http://openwall.com/lists/oss-security/2011/04/01/3
- http://openwall.com/lists/oss-security/2011/04/04/35
- http://perl5.git.perl.org/perl.git/commit/539689e74a3bcb04d29e4cd9396de91a81045b99
- http://rt.perl.org/rt3/Public/Bug/Display.html?id=87336
- http://secunia.com/advisories/43921
- http://secunia.com/advisories/44168
- http://www.debian.org/security/2011/dsa-2265
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:091
- http://www.securityfocus.com/bid/47124
- https://bugzilla.redhat.com/show_bug.cgi?id=692844
- https://bugzilla.redhat.com/show_bug.cgi?id=692898
- https://exchange.xforce.ibmcloud.com/vulnerabilities/66528
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/057891.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/057971.html
- http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html
- http://openwall.com/lists/oss-security/2011/04/01/3
- http://openwall.com/lists/oss-security/2011/04/04/35
- http://perl5.git.perl.org/perl.git/commit/539689e74a3bcb04d29e4cd9396de91a81045b99
- http://rt.perl.org/rt3/Public/Bug/Display.html?id=87336
- http://secunia.com/advisories/43921
- http://secunia.com/advisories/44168
- http://www.debian.org/security/2011/dsa-2265
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:091
- http://www.securityfocus.com/bid/47124
- https://bugzilla.redhat.com/show_bug.cgi?id=692844
- https://bugzilla.redhat.com/show_bug.cgi?id=692898
- https://exchange.xforce.ibmcloud.com/vulnerabilities/66528
Raw JSON (NVD)
Show
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