CVE-2012-3461
The (1) otrl_base64_otr_decode function in src/b64.c; (2) otrl_proto_data_read_flags and (3) otrl_proto_accept_data functions in…
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
The (1) otrl_base64_otr_decode function in src/b64.c; (2) otrl_proto_data_read_flags and (3) otrl_proto_accept_data functions in src/proto.c; and (4) decode function in toolkit/parse.c in libotr before 3.2.1 allocates a zero-length buffer when decoding a base64 string, which allows remote attackers to cause a denial of service (application crash) via a message with the value "?OTR:===.", which triggers a heap-based buffer overflow.
Timeline
ID reserved
By redhat
- 2 months later
· 2 months later
Published
- 12 years later
· 12 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 | Medium4.3 | AV:N/AC:M/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 3.4% · top 11% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Weakness
Affected products
n/a
- affected n/a
References (16)
- DSA-2526 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- SUSE-SU-2012:1578 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- libotr-base64-bo(77528) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=846377 (opens in a new tab)x_refsource_MISCx_transferred
- MDVSA-2013:097 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- MDVSA-2012:131 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- http://otr.git.sourceforge.net/git/gitweb.cgi?p=otr/libotr%3Ba=commitdiff%3Bh=b17232f86f8e60d0d22caf9a2400494d3c77da58 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [OTR-dev] 20120727 otrl_base64_otr_decode() function... (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [OTR-dev] 20120727 Re: otrl_base64_otr_decode() function... (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=684121 (opens in a new tab)x_refsource_MISCx_transferred
- USN-1541-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- openSUSE-SU-2012:1525 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- http://otr.git.sourceforge.net/git/gitweb.cgi?p=otr/libotr%3Ba=commitdiff%3Bh=1902baee5d4b056850274ed0fa8c2409f1187435 (opens in a new tab)x_refsource_CONFIRMx_transferred
- openSUSE-SU-2013:0155 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- http://otr.git.sourceforge.net/git/gitweb.cgi?p=otr/libotr%3Ba=commitdiff%3Bh=6d4ca89cf1d3c9a8aff696c3a846ac5a51f762c1 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 54907 (opens in a new tab)vdb-entryx_refsource_BIDx_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)
- EUVD EUVD-2012-3421 (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-2012-3461)Record last updated .