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Debian Security Advisory DSA-3290-1                   security@debian.org
https://www.debian.org/security/                            Ben Hutchings
June 18, 2015                         https://www.debian.org/security/faq
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Package        : linux
CVE ID         : CVE-2015-1805 CVE-2015-3636 CVE-2015-4167

Several vulnerabilities have been discovered in the Linux kernel that
may lead to a privilege escalation, denial of service, information leaks
or data corruption.

CVE-2015-1805

    Red Hat discovered that the pipe iovec read and write
    implementations may iterate over the iovec twice but will modify the
    iovec such that the second iteration accesses the wrong memory. A
    local user could use this flaw to crash the system or possibly for
    privilege escalation. This may also result in data corruption and
    information leaks in pipes between non-malicious processes.

CVE-2015-3636

    Wen Xu and wushi of KeenTeam discovered that users allowed to create
    ping sockets can use them to crash the system and, on 32-bit
    architectures, for privilege escalation. However, by default, no
    users on a Debian system have access to ping sockets.

CVE-2015-4167

    Carl Henrik Lunde discovered that the UDF implementation is missing
    a necessary length checks. A local user that can mount devices could
    use this flaw to crash the system.

For the oldstable distribution (wheezy), these problems have been fixed
in version 3.2.68-1+deb7u2.

For the stable distribution (jessie), these problems were fixed in
version 3.16.7-ckt11-1 or earlier, except for CVE-2015-4167 which will
be fixed later.

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: debian-security-announce@lists.debian.org
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