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AUSCERT External Security Bulletin Redistribution
apache2 security update
31 May 2018
AusCERT Security Bulletin Summary
Operating System: Debian GNU/Linux 7
Impact/Access: Denial of Service -- Remote/Unauthenticated
Provide Misleading Information -- Remote/Unauthenticated
CVE Names: CVE-2018-1312 CVE-2018-1301 CVE-2017-15710
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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.
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.
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.
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
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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