CVE-2011-4326 – kernel: wrong headroom check in udp6_ufo_fragment()

https://notcve.org/view.php?id=CVE-2011-4326

The udp6_ufo_fragment function in net/ipv6/udp.c in the Linux kernel before 2.6.39, when a certain UDP Fragmentation Offload (UFO) configuration is enabled, allows remote attackers to cause a denial of service (system crash) by sending fragmented IPv6 UDP packets to a bridge device. La función udp6_ufo_fragment en net/ipv6/udp.c en el kernel de Linux antes de v2.6.39, cuando la opción de "UDP Fragmentation Offload" (UFO) está activada, permite a atacantes remotos causar una denegación de servicio (caída del sistema) mediante el envío de paquetes IPv6 UDP a un dispositivo de puente. • http://downloads.avaya.com/css/P8/documents/100156038 http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a9cf73ea7ff78f52662c8658d93c226effbbedde http://www.openwall.com/lists/oss-security/2011/11/21/10 http://www.securityfocus.com/bid/50751 https://bugzilla.redhat.com/show_bug.cgi?id=682066 https://bugzilla.redhat.com/show_bug.cgi?id=755584 https://github.com/torvalds/linux/commit&#x • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-399: Resource Management Errors •