CVE-2011-2529
chan_sip.c in the SIP channel driver in Asterisk Open Source 1.6.x before 1.6.2.18.1 and 1.8.x before 1.8.4.3 does not properly handle '\0' characters in SIP packets, which allows remote attackers to cause a denial of service (memory corruption) or…
Does this matter?
Lower severity and a low EPSS score (4.28%). Track it; it rarely justifies an emergency change on its own.
Description
chan_sip.c in the SIP channel driver in Asterisk Open Source 1.6.x before 1.6.2.18.1 and 1.8.x before 1.8.4.3 does not properly handle '\0' characters in SIP packets, which allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a crafted packet.
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
- EPSS
- 4.28% probability · 91th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- digium/asterisk
- Source
- cve@mitre.org
References
- http://downloads.asterisk.org/pub/security/AST-2011-008.diffPatch
- http://downloads.asterisk.org/pub/security/AST-2011-008.htmlVendor Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062628.html
- http://secunia.com/advisories/45048Vendor Advisory
- http://secunia.com/advisories/45201
- http://secunia.com/advisories/45239
- http://securitytracker.com/id?1025706
- http://www.debian.org/security/2011/dsa-2276
- http://www.osvdb.org/73307
- http://www.securityfocus.com/bid/48431
- https://exchange.xforce.ibmcloud.com/vulnerabilities/68203
- http://downloads.asterisk.org/pub/security/AST-2011-008.diffPatch
- http://downloads.asterisk.org/pub/security/AST-2011-008.htmlVendor Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062628.html
- http://secunia.com/advisories/45048Vendor Advisory
- http://secunia.com/advisories/45201
- http://secunia.com/advisories/45239
- http://securitytracker.com/id?1025706
- http://www.debian.org/security/2011/dsa-2276
- http://www.osvdb.org/73307
- http://www.securityfocus.com/bid/48431
- https://exchange.xforce.ibmcloud.com/vulnerabilities/68203
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.