NULL pointer dereference in Linux kernel - CVE-2008-3792

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Main Vulnerability Database Vulnerabilities #VU91021

NULL pointer dereference in Linux kernel - CVE-2008-3792

Published: September 3, 2008 / Updated: October 11, 2018


Vulnerability identifier: #VU91021
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2008-3792
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the sctp_setsockopt_auth_chunk(), sctp_setsockopt_hmac_ident(), sctp_setsockopt_auth_key(), sctp_setsockopt_active_key(), sctp_setsockopt_del_key(), sctp_getsockopt_maxburst(), sctp_getsockopt_active_key(), sctp_getsockopt_peer_auth_chunks() and sctp_getsockopt_local_auth_chunks() functions in net/sctp/socket.c, within the sctp_endpoint_init() function in net/sctp/endpointola.c. A remote non-authenticated attacker can perform a denial of service (DoS) attack.


Affected software

Linux kernel
Ubuntu
linux-source-2.6.15 (Ubuntu package)
linux-source-2.6.22 (Ubuntu package)
linux (Ubuntu package)

How to mitigate CVE-2008-3792

Install update from vendor's website.

linux-source-2.6.15 (Ubuntu package) - update to 2.6.15-52.73
linux-source-2.6.22 (Ubuntu package) - update to 2.6.22-15.59
linux (Ubuntu package) - update to 2.6.24-21.43

External References

Related Security Bulletins