From: [email protected]

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- ------------------------------------------------------------------------- Debian Security Advisory DSA-3093-1 [email protected] http://www.debian.org/security/ Salvatore Bonaccorso December 08, 2014 http://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : linux
CVE ID : CVE-2014-7841 CVE-2014-8369 CVE-2014-8884 CVE-2014-9090

Several vulnerabilities have been discovered in the Linux kernel that
may lead to a denial of service or privilege escalation:

CVE-2014-7841

Liu Wei of Red Hat discovered that a SCTP server doing ASCONF will
panic on malformed INIT chunks by triggering a NULL pointer
dereference.

CVE-2014-8369

A flaw was discovered in the way iommu mapping failures were handled
in the kvm_iommu_map_pages() function in the Linux kernel. A guest
OS user could exploit this flaw to cause a denial of service (host
OS memory corruption) or possibly have other unspecified impact on
the host OS.

CVE-2014-8884

A stack-based buffer overflow flaw was discovered in the
TechnoTrend/Hauppauge DEC USB driver. A local user with write access
to the corresponding device could use this flaw to crash the kernel
or, potentially, elevate their privileges.

CVE-2014-9090

Andy Lutomirski discovered that the do_double_fault function in
arch/x86/kernel/traps.c in the Linux kernel did not properly handle
faults associated with the Stack Segment (SS) segment register,
which allows local users to cause a denial of service (panic).

For the stable distribution (wheezy), these problems have been fixed in
version 3.2.63-2+deb7u2. This update also includes fixes for regressions introduced by previous updates.

For the unstable distribution (sid), these problems will be fixed soon
in version 3.16.7-ckt2-1.

We recommend that you upgrade your linux packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: [email protected]
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