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[SECURITY] [DLA 1519-1] python2.7 security update



Package        : python2.7
Version        : 2.7.9-2+deb8u2
CVE ID         : CVE-2017-1000158 CVE-2018-1060 CVE-2018-1061 CVE-2018-1000802

Multiple vulnerabilities were found in the CPython interpreter which
can cause denial of service, information gain, and arbitrary code
execution.

CVE-2017-1000158

    CPython (aka Python) is vulnerable to an integer overflow in the
    PyString_DecodeEscape function in stringobject.c, resulting in
    heap-based buffer overflow (and possible arbitrary code execution)

CVE-2018-1060

    python is vulnerable to catastrophic backtracking in pop3lib's
    apop() method. An attacker could use this flaw to cause denial of
    service.

CVE-2018-1061

    python is vulnerable to catastrophic backtracking in the
    difflib.IS_LINE_JUNK method. An attacker could use this flaw to
    cause denial of service.

CVE-2018-1000802

    Python Software Foundation Python (CPython) version 2.7 contains a
    CWE-77: Improper Neutralization of Special Elements used in a
    Command ('Command Injection') vulnerability in shutil module
    (make_archive function) that can result in Denial of service,
    Information gain via injection of arbitrary files on the system or
    entire drive. This attack appear to be exploitable via Passage of
    unfiltered user input to the function.

For Debian 8 "Jessie", these problems have been fixed in version
2.7.9-2+deb8u2.

We recommend that you upgrade your python2.7 packages.

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

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