Summary: | Kernel : "udp6_ufo_fragment()" Denial of Service Vulnerability (CVE-2013-4563) | ||
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Product: | Gentoo Security | Reporter: | Agostino Sarubbo <ago> |
Component: | Kernel | Assignee: | Gentoo Kernel Security <security-kernel> |
Status: | RESOLVED FIXED | ||
Severity: | normal | CC: | kernel |
Priority: | Normal | ||
Version: | unspecified | ||
Hardware: | All | ||
OS: | Linux | ||
URL: | https://secunia.com/advisories/55658/ | ||
Whiteboard: | |||
Package list: | Runtime testing required: | --- |
Description
Agostino Sarubbo
2013-11-15 20:09:04 UTC
CVE-2013-4563 (http://nvd.nist.gov/nvd.cfm?cvename=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. Fix in 3.12.4 onwards |