Division by zero in Linux kernel - CVE-2012-0207
Published: May 17, 2012 / Updated: June 8, 2024
Vulnerability identifier: #VU91384
CSH Severity: Medium
CVSS v4.0: 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/E:P/U:Green
CVE-ID: CVE-2012-0207
CWE-ID: CWE-369
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a division by zero error within the igmp_heard_query() function in net/ipv4/igmp.c. A remote non-authenticated attacker can perform a denial of service (DoS) attack.
How to mitigate CVE-2012-0207
Install update from vendor's website.
Sources
- http://www.openwall.com/lists/oss-security/2012/01/10/5
- https://bugzilla.redhat.com/show_bug.cgi?id=772867
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.1
- https://github.com/torvalds/linux/commit/a8c1f65c79cbbb2f7da782d4c9d15639a9b94b27
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a8c1f65c79cbbb2f7da782d4c9d15639a9b94b27
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=654876
- https://github.com/torvalds/linux/commit/25c413ad0029ea86008234be28aee33456e53e5b