CVE-2013-4348
First published: Fri Sep 13 2013(Updated: )
A flaw was found in the way ip packets with ihl of zero were processed in the skb_flow_dissect() function in the Linux kernel. A remote attacker could use this flaw to cause inifinite loop in the kernel. Acknowledgements: This issue was found by Jason Wang of Red Hat.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=3.2<3.2.54 | |
| Linux Kernel | >=3.3<3.4.70 | |
| Linux Kernel | >=3.5<3.10.20 | |
| Linux Kernel | >=3.11<3.11.9 | |
| Linux Kernel | >=3.12<3.12.1 | |
| Ubuntu Linux | =12.04 | |
| Ubuntu Linux | =13.10 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.13-1 | |
| Ubuntu | =12.04 | |
| Ubuntu | =13.10 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00002.html
- http://rhn.redhat.com/errata/RHSA-2013-1490.html
- http://www.ubuntu.com/usn/USN-2070-1
- http://www.ubuntu.com/usn/USN-2075-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1007939
- https://git.kernel.org/cgit/linux/kernel/git/davem/net.git/commit/?id=6f092343855a71e03b8d209815d8c45bf3a27fcd
- https://launchpad.net/bugs/cve/CVE-2013-4348
- https://rhn.redhat.com/errata/RHSA-2013-1490.html
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1025647
- http://thread.gmane.org/gmane.linux.kernel/1588387
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4348
- https://nvd.nist.gov/vuln/detail/CVE-2013-4348
- https://security-tracker.debian.org/tracker/CVE-2013-4348
- https://ubuntu.com/security/CVE-2013-4348
Frequently Asked Questions
What is the severity of CVE-2013-4348?
CVE-2013-4348 is considered a medium severity vulnerability due to its potential to cause an infinite loop in the Linux kernel.
How do I fix CVE-2013-4348?
To fix CVE-2013-4348, update the Linux kernel to a version that is not affected, such as any version beyond the specified vulnerable ranges.
Which Linux kernel versions are affected by CVE-2013-4348?
CVE-2013-4348 affects Linux kernel versions from 3.2 to 3.12.1, including specific versions of Ubuntu Linux 12.04 and 13.10.
Can CVE-2013-4348 be exploited remotely?
Yes, CVE-2013-4348 can be exploited remotely, allowing an attacker to trigger denial of service conditions.
What should I do if my system is vulnerable to CVE-2013-4348?
If your system is vulnerable to CVE-2013-4348, immediately upgrade to a fixed kernel version to mitigate the risk.
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