Vulnerability in Linux Kernel
CVE-2013-4563
The udp6_ufo_fragment function in net/ipv6/udp_offload.c in the Linux kernel through 3.12, when UDP Fragmentation Offload (UFO) is enabled, does not properly perform a certain size comparison before inserting a fragment header, which allows remote attackers to cause a denial of service (panic) via a large IPv6 UDP packet, as demonstrated by use of the Token Bucket Filter (TBF) queueing discipline.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 7.1 (High). Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.039 (89.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.039 · newest: 0.039 · change: 0.000
Affected products
- Linux Kernel
- Canonical Ubuntu Linux — versions 12.04, 13.10
Weakness classification (CWE)
References
- www.ubuntu.com/usn/USN-2113-1 (vendor-advisory, Third Party Advisory)
- git.kernel.org/ (Vendor Advisory)
- www.ubuntu.com/usn/USN-2117-1 (vendor-advisory, Third Party Advisory)
- github.com/torvalds/linux/commit/0e033e04c2678dbbe74a46b23fffb7bb918c288e (Exploit, Patch)
- bugzilla.redhat.com/show_bug.cgi (Issue Tracking)
- lists.opensuse.org/opensuse-security-announce/2014-02/msg00003.html (vendor-advisory, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2013/11/13/9 (mailing-list, Patch, Mailing List)