CVE-2011-1487
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,…
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
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.
Timeline
ID reserved
By redhat
- 21 days later
· 21 days later
Published
- 13 years later
· 13 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
- EPSS (exploitation in 30 days)
- 10.6% · top 4.2% of all CVEs (8 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
Affected products
n/a
- affected n/a
References (15)
- https://bugzilla.redhat.com/show_bug.cgi?id=692844 (opens in a new tab)x_refsource_CONFIRMx_transferred
- SUSE-SR:2011:009 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- FEDORA-2011-4610 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- 44168 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 43921 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- DSA-2265 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- FEDORA-2011-4631 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- http://rt.perl.org/rt3/Public/Bug/Display.html?id=87336 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 47124 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- [oss-security] 20110404 Re: CVE Request -- perl -- lc(), uc() routines are laundering tainted data (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://perl5.git.perl.org/perl.git/commit/539689e74a3bcb04d29e4cd9396de91a81045b99 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=692898 (opens in a new tab)x_refsource_CONFIRMx_transferred
- MDVSA-2011:091 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- perl-laundering-security-bypass(66528) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- [oss-security] 20110401 CVE Request -- perl -- lc(), uc() routines are laundering tainted data (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2011-1487)Record last updated .