[SECURITY] [DLA 360-1] linux-2.6 security update

2015-12-08T14:08:00
ID DEBIAN:DLA-360-1:6C323
Type debian
Reporter Debian
Modified 2015-12-08T14:08:00

Description

Package        : linux-2.6 Version        : 2.6.32-48squeeze17 CVE ID         : CVE-2013-7446 CVE-2015-7799 CVE-2015-7833 CVE-2015-7990                  CVE-2015-8324

This update fixes the CVEs described below.

CVE-2013-7446

Dmitry Vyukov discovered that a particular sequence of valid     operations on local (AF_UNIX) sockets can result in a     use-after-free.  This may be used to cause a denial of service     (crash) or possibly for privilege escalation.

CVE-2015-7799

郭永刚 discovered that a user granted access to /dev/ppp can cause     a denial of service (crash) by passing invalid parameters to the     PPPIOCSMAXCID ioctl.  This also applies to ISDN PPP device nodes.

CVE-2015-7833

Sergej Schumilo, Hendrik Schwartke and Ralf Spenneberg discovered a     flaw in the processing of certain USB device descriptors in the     usbvision driver. An attacker with physical access to the system can     use this flaw to crash the system.

CVE-2015-7990

It was discovered that the fix for CVE-2015-6937 was incomplete. A     race condition when sending a message on unbound socket can still     cause a NULL pointer dereference. A remote attacker might be able to     cause a denial of service (crash) by sending a crafted packet.

CVE-2015-8324

"Valintinr" reported that an attempt to mount a corrupted ext4     filesystem may result in a kernel panic.  A user permitted to     mount filesystems could use this flaw to crash the system.

For the oldoldstable distribution (squeeze), these problems have been fixed in version 2.6.32-48squeeze17.  We recommend that you upgrade your linux-2.6 packages.

For the oldstable (wheezy) and stable (jessie) distributions, CVE-2015-7833, CVE-2015-7990 and CVE-2015-8324 have been fixed and the other issues will be fixed soon.

-- Ben Hutchings - Debian developer, member of Linux kernel and LTS teams

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