CVE-2013-4163: Medium severity Linux Linux kernel vulnerability
Last updated 24 July 2024
Other sources
Linux kernel built with the IPv6 networking support is vulnerable to a crash while appending data to an IPv6 socket with UDPCORKED option set. UDPCORK enables accumulating data and sending it as single datagram.
An unprivileged user/program could use this flaw to crash the kernel, resulting in local DoS.
Upstream fix: ============= -> https://git.kernel.org/linus/75a493e60ac4bbe2e977e7129d6d8cbb0dd236be
Acknowledgements:
Red Hat would like to thank Hannes Frederic Sowa for reporting this issue.
— Red Hat
The ip6appenddatamtu function in net/ipv6/ip6output.c in the IPv6 implementation in the Linux kernel through 3.10.3 does not properly maintain information about whether the IPV6MTU setsockopt option had been specified, which allows local users to cause a denial of service (BUG and system crash) via a crafted application that uses the UDPCORK option in a setsockopt system call.
— Launchpad
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 6.1.176-1Fixed in 6.1.190-1Fixed in 6.12.107-1Fixed in 6.12.116-1Fixed in 7.2.15-1Fixed in 7.3.3-1
Event History
Frequently Asked Questions
What is the severity of CVE-2013-4163?
CVE-2013-4163 is categorized as a high severity vulnerability due to its potential to allow an unprivileged user to crash the Linux kernel.
How do I fix CVE-2013-4163?
To fix CVE-2013-4163, update the Linux kernel to a version greater than 3.10.3 or apply the patches provided by your distribution.
Which software versions are affected by CVE-2013-4163?
CVE-2013-4163 affects various Linux kernel versions up to 3.10.3, including 3.0-rc1 to 3.0.68.
Is CVE-2013-4163 exploitable remotely?
CVE-2013-4163 is not considered remotely exploitable, as it requires an unprivileged user accessing the system.
What happens if CVE-2013-4163 is exploited?
Exploitation of CVE-2013-4163 can result in a denial of service condition, leading to a system crash.