CVE-2012-2948

chan_skinny.c in the Skinny (aka SCCP) channel driver in Certified Asterisk 1.8.11-cert before 1.8.11-cert2 and Asterisk Open Source 1.8.x before 1.8.12.1 and 10.x before 10.4.1 allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) by closing a connection in off-hook mode.

Published: 2012-06-02 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-2948 is rated Moderate Risk (42.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.14%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2012-2948

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 3.93% 2.14% -1.79%
2 2025-03-30 5.06% 3.93% -1.13%
3 2025-03-29 — 5.06% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-2948

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.0 2.0 MEDIUM
AV:N/AC:L/Au:S/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.0 2.9 [email protected]

Weakness enumeration for CVE-2012-2948

OS Trackers for CVE-2012-2948

vendor priority summary link
debian not yet assigned CVE-2012-2948 not yet assigned priority: Debian including 1 source packages (asterisk), 2 status rows across 2 suites (bullseye, sid): resolved 2. https://security-tracker.debian.org/tracker/CVE-2012-2948
gentoo normal CVE-2012-2948: 1 GLSA(s) (201206-05), 1 atom(s) (net-misc/asterisk); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2012-2948
ubuntu medium CVE-2012-2948 medium priority: Ubuntu including 1 source packages (asterisk), 16 status rows across 16 suites (hardy, lucid, natty, oneiric, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): not-affected 9, ignored 5, DNE 1, released 1. https://ubuntu.com/security/CVE-2012-2948

Affected software / configurations for CVE-2012-2948

Vendor Product Version Raw CPE
asterisk certified_asterisk 1.8.11 cpe:2.3:a:asterisk:certified_asterisk:1.8.11:cert:*:*:*:*:*:*
asterisk certified_asterisk 1.8.11 cpe:2.3:a:asterisk:certified_asterisk:1.8.11:cert1:*:*:*:*:*:*
asterisk open_source 1.8.0 cpe:2.3:a:asterisk:open_source:1.8.0:*:*:*:*:*:*:*
asterisk open_source 1.8.0 cpe:2.3:a:asterisk:open_source:1.8.0:beta1:*:*:*:*:*:*
asterisk open_source 1.8.0 cpe:2.3:a:asterisk:open_source:1.8.0:beta2:*:*:*:*:*:*
asterisk open_source 1.8.0 cpe:2.3:a:asterisk:open_source:1.8.0:beta3:*:*:*:*:*:*
asterisk open_source 1.8.0 cpe:2.3:a:asterisk:open_source:1.8.0:beta4:*:*:*:*:*:*
asterisk open_source 1.8.0 cpe:2.3:a:asterisk:open_source:1.8.0:beta5:*:*:*:*:*:*
asterisk open_source 1.8.0 cpe:2.3:a:asterisk:open_source:1.8.0:rc1:*:*:*:*:*:*
asterisk open_source 1.8.0 cpe:2.3:a:asterisk:open_source:1.8.0:rc2:*:*:*:*:*:*
asterisk open_source 1.8.0 cpe:2.3:a:asterisk:open_source:1.8.0:rc3:*:*:*:*:*:*
asterisk open_source 1.8.0 cpe:2.3:a:asterisk:open_source:1.8.0:rc4:*:*:*:*:*:*
asterisk open_source 1.8.0 cpe:2.3:a:asterisk:open_source:1.8.0:rc5:*:*:*:*:*:*
asterisk open_source 1.8.1 cpe:2.3:a:asterisk:open_source:1.8.1:*:*:*:*:*:*:*
asterisk open_source 1.8.1 cpe:2.3:a:asterisk:open_source:1.8.1:rc1:*:*:*:*:*:*
asterisk open_source 1.8.2 cpe:2.3:a:asterisk:open_source:1.8.2:*:*:*:*:*:*:*
asterisk open_source 1.8.2 cpe:2.3:a:asterisk:open_source:1.8.2:rc1:*:*:*:*:*:*
asterisk open_source 1.8.3 cpe:2.3:a:asterisk:open_source:1.8.3:rc1:*:*:*:*:*:*
asterisk open_source 1.8.5 cpe:2.3:a:asterisk:open_source:1.8.5:rc1:*:*:*:*:*:*
asterisk open_source 1.8.5.0 cpe:2.3:a:asterisk:open_source:1.8.5.0:*:*:*:*:*:*:*
asterisk open_source 1.8.6.0 cpe:2.3:a:asterisk:open_source:1.8.6.0:*:*:*:*:*:*:*
asterisk open_source 1.8.6.0 cpe:2.3:a:asterisk:open_source:1.8.6.0:rc1:*:*:*:*:*:*
asterisk open_source 1.8.6.0 cpe:2.3:a:asterisk:open_source:1.8.6.0:rc2:*:*:*:*:*:*
asterisk open_source 1.8.6.0 cpe:2.3:a:asterisk:open_source:1.8.6.0:rc3:*:*:*:*:*:*
asterisk open_source 1.8.7.0 cpe:2.3:a:asterisk:open_source:1.8.7.0:*:*:*:*:*:*:*
asterisk open_source 1.8.7.0 cpe:2.3:a:asterisk:open_source:1.8.7.0:rc1:*:*:*:*:*:*
asterisk open_source 1.8.7.0 cpe:2.3:a:asterisk:open_source:1.8.7.0:rc2:*:*:*:*:*:*
asterisk open_source 1.8.8.0 cpe:2.3:a:asterisk:open_source:1.8.8.0:*:*:*:*:*:*:*
asterisk open_source 1.8.8.0 cpe:2.3:a:asterisk:open_source:1.8.8.0:rc1:*:*:*:*:*:*
asterisk open_source 1.8.8.0 cpe:2.3:a:asterisk:open_source:1.8.8.0:rc2:*:*:*:*:*:*
asterisk open_source 1.8.8.0 cpe:2.3:a:asterisk:open_source:1.8.8.0:rc3:*:*:*:*:*:*
asterisk open_source 1.8.8.0 cpe:2.3:a:asterisk:open_source:1.8.8.0:rc4:*:*:*:*:*:*
asterisk open_source 1.8.8.0 cpe:2.3:a:asterisk:open_source:1.8.8.0:rc5:*:*:*:*:*:*
asterisk open_source 1.8.9.0 cpe:2.3:a:asterisk:open_source:1.8.9.0:*:*:*:*:*:*:*
asterisk open_source 1.8.9.0 cpe:2.3:a:asterisk:open_source:1.8.9.0:rc1:*:*:*:*:*:*
asterisk open_source 1.8.9.0 cpe:2.3:a:asterisk:open_source:1.8.9.0:rc2:*:*:*:*:*:*
asterisk open_source 1.8.9.0 cpe:2.3:a:asterisk:open_source:1.8.9.0:rc3:*:*:*:*:*:*
asterisk open_source 1.8.10.0 cpe:2.3:a:asterisk:open_source:1.8.10.0:*:*:*:*:*:*:*
asterisk open_source 1.8.10.0 cpe:2.3:a:asterisk:open_source:1.8.10.0:rc1:*:*:*:*:*:*
asterisk open_source 1.8.10.0 cpe:2.3:a:asterisk:open_source:1.8.10.0:rc2:*:*:*:*:*:*
asterisk open_source 1.8.10.0 cpe:2.3:a:asterisk:open_source:1.8.10.0:rc3:*:*:*:*:*:*
asterisk open_source 1.8.10.0 cpe:2.3:a:asterisk:open_source:1.8.10.0:rc4:*:*:*:*:*:*
asterisk open_source 1.8.11.0 cpe:2.3:a:asterisk:open_source:1.8.11.0:*:*:*:*:*:*:*
asterisk open_source 1.8.11.0 cpe:2.3:a:asterisk:open_source:1.8.11.0:rc2:*:*:*:*:*:*
asterisk open_source 1.8.11.0 cpe:2.3:a:asterisk:open_source:1.8.11.0:rc3:*:*:*:*:*:*
asterisk open_source 1.8.12 cpe:2.3:a:asterisk:open_source:1.8.12:*:*:*:*:*:*:*
asterisk open_source 1.8.12.0 cpe:2.3:a:asterisk:open_source:1.8.12.0:rc1:*:*:*:*:*:*
asterisk open_source 1.8.12.0 cpe:2.3:a:asterisk:open_source:1.8.12.0:rc2:*:*:*:*:*:*
asterisk open_source 1.8.12.0 cpe:2.3:a:asterisk:open_source:1.8.12.0:rc3:*:*:*:*:*:*
sangoma asterisk <= 1.8.12.0 cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*
asterisk open_source 10.0.0 cpe:2.3:a:asterisk:open_source:10.0.0:*:*:*:*:*:*:*
asterisk open_source 10.0.0 cpe:2.3:a:asterisk:open_source:10.0.0:beta1:*:*:*:*:*:*
asterisk open_source 10.0.0 cpe:2.3:a:asterisk:open_source:10.0.0:beta2:*:*:*:*:*:*
asterisk open_source 10.0.0 cpe:2.3:a:asterisk:open_source:10.0.0:rc1:*:*:*:*:*:*
asterisk open_source 10.0.0 cpe:2.3:a:asterisk:open_source:10.0.0:rc2:*:*:*:*:*:*
asterisk open_source 10.0.0 cpe:2.3:a:asterisk:open_source:10.0.0:rc3:*:*:*:*:*:*
asterisk open_source 10.1.0 cpe:2.3:a:asterisk:open_source:10.1.0:*:*:*:*:*:*:*
asterisk open_source 10.1.0 cpe:2.3:a:asterisk:open_source:10.1.0:rc1:*:*:*:*:*:*
asterisk open_source 10.1.0 cpe:2.3:a:asterisk:open_source:10.1.0:rc2:*:*:*:*:*:*
asterisk open_source 10.2.0 cpe:2.3:a:asterisk:open_source:10.2.0:*:*:*:*:*:*:*
asterisk open_source 10.2.0 cpe:2.3:a:asterisk:open_source:10.2.0:rc1:*:*:*:*:*:*
asterisk open_source 10.2.0 cpe:2.3:a:asterisk:open_source:10.2.0:rc2:*:*:*:*:*:*
asterisk open_source 10.2.0 cpe:2.3:a:asterisk:open_source:10.2.0:rc3:*:*:*:*:*:*
asterisk open_source 10.2.0 cpe:2.3:a:asterisk:open_source:10.2.0:rc4:*:*:*:*:*:*
asterisk open_source 10.3 cpe:2.3:a:asterisk:open_source:10.3:*:*:*:*:*:*:*
asterisk open_source 10.3.0 cpe:2.3:a:asterisk:open_source:10.3.0:*:*:*:*:*:*:*
asterisk open_source 10.3.0 cpe:2.3:a:asterisk:open_source:10.3.0:rc2:*:*:*:*:*:*
asterisk open_source 10.3.0 cpe:2.3:a:asterisk:open_source:10.3.0:rc3:*:*:*:*:*:*
asterisk open_source 10.4.0 cpe:2.3:a:asterisk:open_source:10.4.0:rc1:*:*:*:*:*:*
asterisk open_source 10.4.0 cpe:2.3:a:asterisk:open_source:10.4.0:rc2:*:*:*:*:*:*
asterisk open_source 10.4.0 cpe:2.3:a:asterisk:open_source:10.4.0:rc3:*:*:*:*:*:*
sangoma asterisk <= 10.4.0 cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*

References for CVE-2012-2948

cvelogic Threat Intelligence