SB2011052603 - Resource exhaustion in Linux kernel
Published: May 26, 2011 Updated: August 11, 2020
Security Bulletin ID
SB2011052603
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource exhaustion (CVE-ID: CVE-2010-4805)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The socket implementation in net/core/sock.c in the Linux kernel before 2.6.35 does not properly manage a backlog of received packets, which allows remote attackers to cause a denial of service by sending a large amount of network traffic, related to the sk_add_backlog function and the sk_rmem_alloc socket field. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-4251.
Remediation
Install update from vendor's website.
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c377411f2494a931ff7facdbb3a6839b1266bcf6
- http://kerneltrap.org/mailarchive/linux-netdev/2010/3/3/6271093/thread
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35
- http://www.securityfocus.com/bid/46637
- https://bugzilla.redhat.com/show_bug.cgi?id=657303