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  • [SECURITY] [DSA 3325-1] apache2 security update

    From Stefan Fritsch@1:229/2 to All on Sun Aug 2 00:10:01 2015
    From: [email protected]

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    - ------------------------------------------------------------------------- Debian Security Advisory DSA-3325-1 [email protected] https://www.debian.org/security/ Stefan Fritsch August 01, 2015 https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package : apache2
    CVE ID : CVE-2015-3183 CVE-2015-3185

    Several vulnerabilities have been found in the Apache HTTPD server.

    CVE-2015-3183

    An HTTP request smuggling attack was possible due to a bug in
    parsing of chunked requests. A malicious client could force the
    server to misinterpret the request length, allowing cache poisoning
    or credential hijacking if an intermediary proxy is in use.

    CVE-2015-3185

    A design error in the "ap_some_auth_required" function renders the
    API unusuable in apache2 2.4.x. This could lead to modules using
    this API to allow access when they should otherwise not do so.
    The fix backports the new "ap_some_authn_required" API from 2.4.16.
    This issue does not affect the oldstable distribution (wheezy).


    In addition, the updated package for the oldstable distribution (wheezy) removes a limitation of the Diffie-Hellman (DH) parameters to 1024 bits.
    This limitation may potentially allow an attacker with very large
    computing resources, like a nation-state, to break DH key exchange by precomputation. The updated apache2 package also allows to configure
    custom DH parameters. More information is contained in the
    changelog.Debian.gz file.
    These improvements were already present in the stable, testing, and
    unstable distributions.


    For the oldstable distribution (wheezy), these problems have been fixed
    in version 2.2.22-13+deb7u5.

    For the stable distribution (jessie), these problems have been fixed in
    version 2.4.10-10+deb8u1.

    For the testing distribution (stretch), these problems will be fixed
    soon.

    For the unstable distribution (sid), these problems will be fixed soon.

    We recommend that you upgrade your apache2 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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