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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.1627
                          apache2 security update
                                31 May 2018

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           apache2
Publisher:         Debian
Operating System:  Debian GNU/Linux 7
Impact/Access:     Denial of Service              -- Remote/Unauthenticated
                   Provide Misleading Information -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-1312 CVE-2018-1301 CVE-2017-15710

Reference:         ESB-2018.0845
                   ESB-2018.0660.4

Original Bulletin: 
   https://lists.debian.org/debian-lts-announce/2018/05/msg00020.html

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Package        : apache2
Version        : 2.2.22-13+deb7u13
CVE ID         : CVE-2017-15710 CVE-2018-1301 CVE-2018-1312
Debian Bug     :=20


Several vulnerabilities have been found in the Apache HTTPD server.

CVE-2017-15710

    Alex Nichols and Jakob Hirsch reported that mod_authnz_ldap, if
    configured with AuthLDAPCharsetConfig, could cause an of bound write
    if supplied with a crafted Accept-Language header. This could
    potentially be used for a Denial of Service attack.

CVE-2018-1301

    Robert Swiecki reported that a specially crafted request could have
    crashed the Apache HTTP Server, due to an out of bound access after
    a size limit is reached by reading the HTTP header.
CVE-2018-1312

    Nicolas Daniels discovered that when generating an HTTP Digest
    authentication challenge, the nonce sent by mod_auth_digest to
    prevent reply attacks was not correctly generated using a
    pseudo-random seed. In a cluster of servers using a common Digest
    authentication configuration, HTTP requests could be replayed across
    servers by an attacker without detection.


For Debian 7 "Wheezy", these problems have been fixed in version
2.2.22-13+deb7u13.

We recommend that you upgrade your apache2 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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