SB2013012307 - Buffer overflow in Linux kernel
Published: January 23, 2013 Updated: August 11, 2020
Security Bulletin ID
SB2013012307
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2012-2119)
The vulnerability allows a remote #AU# to perform a denial of service (DoS) attack.
Buffer overflow in the macvtap device driver in the Linux kernel before 3.4.5, when running in certain configurations, allows privileged KVM guest users to cause a denial of service (crash) via a long descriptor with a long vector length.
Remediation
Install update from vendor's website.
References
- http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=814278
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b92946e2919134ebe2a4083e4302236295ea2a73
- http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html
- http://marc.info/?l=linux-netdev&m=133455718001608&w=2
- http://rhn.redhat.com/errata/RHSA-2012-0743.html
- http://ubuntu.com/usn/usn-1529-1
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.5
- http://www.openwall.com/lists/oss-security/2012/04/19/14
- https://github.com/torvalds/linux/commit/b92946e2919134ebe2a4083e4302236295ea2a73
- https://oss.oracle.com/git/?p=redpatch.git;a=commit;h=4aae94d1c7b32316911c86176c0ed4f8ed62da73