CVE-2011-4063 describes a denial-of-service vulnerability in the chan_sip.c SIP channel driver of Asterisk Open Source versions 1.8.x before 1.8.7.1 and 10.x before 10.0.0-rc1. This flaw stems from improper variable initialization during request parsing, allowing remote authenticated users to crash the daemon with a malformed request. With a CVSS score of 6.8, this vulnerability is of medium severity, requiring authentication (Au:S) but having a low attack complexity (AC:L) and resulting in a complete denial of service (A:C). There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1.8.7CPE matchmatch criteria | cpe:2.3:a:asterisk:open_source:1.8.7:*:*:*:*:*:*:* | ||
10.0.0CPE matchmatch criteria | cpe:2.3:a:asterisk:open_source:10.0.0:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:S/C:N/I:N/A:C
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.