CVE-2011-0495
MEDIUM severity · CVSS 6 · Out-of-bounds write
6CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexity—
Privileges required—
User interaction—
Confidentiality impact—
Integrity impact—
Availability impact—
Exploit probability (EPSS)4%
AV:N/AC:M/Au:S/C:P/I:P/A:P
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: http://downloads.asterisk.org/pub/security/AST-2011-001-1.6.2.diff ↗
Additional information
- NVD record
- http://downloads.asterisk.org/pub/security/AST-2011-001-1.6.2.diffPatch
- http://downloads.asterisk.org/pub/security/AST-2011-001.htmlAdvisory
- http://lists.fedoraproject.org/pipermail/package-announce/2011-February/053689.htmlAdvisory
- http://lists.fedoraproject.org/pipermail/package-announce/2011-February/053713.htmlAdvisory
- http://osvdb.org/70518
- http://secunia.com/advisories/42935Advisory
- http://secunia.com/advisories/43119Advisory
- http://secunia.com/advisories/43373Advisory