CVE-2011-0495
Stack-based buffer overflow in the ast_uri_encode function in main/utils.c in Asterisk Open Source before 1.4.38.1, 1.4.39.1, 1.6.1.21,…
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Stack-based buffer overflow in the ast_uri_encode function in main/utils.c in Asterisk Open Source before 1.4.38.1, 1.4.39.1, 1.6.1.21, 1.6.2.15.1, 1.6.2.16.1, 1.8.1.2, 1.8.2.; and Business Edition before C.3.6.2; when running in pedantic mode allows remote authenticated users to execute arbitrary code via crafted caller ID data in vectors involving the (1) SIP channel driver, (2) URIENCODE dialplan function, or (3) AGI dialplan function.
Timeline
ID reserved
By mitre
- 1 day later
· 1 day later
Published
- 14 years later
· 14 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 | Medium6.0 | AV:N/AC:M/Au:S/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 4.2% · top 9.0% of all CVEs (8 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.0.
Weakness
Affected products
n/a
- affected n/a
References (15)
- ADV-2011-0159 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- FEDORA-2011-0794 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- http://downloads.asterisk.org/pub/security/AST-2011-001.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- 43373 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- ADV-2011-0449 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 70518 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 45839 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- ADV-2011-0281 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- FEDORA-2011-0774 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- DSA-2171 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 43119 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- asterisk-asturiencode-bo(64831) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- http://downloads.asterisk.org/pub/security/AST-2011-001-1.6.2.diff (opens in a new tab)x_refsource_MISCx_transferred
- 20110118 AST-2011-001: Stack buffer overflow in SIP channel driver (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 42935 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_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-2011-0495)Record last updated .