[SECURITY] [DSA 4164-1] apache2 security update

ID DEBIAN:DSA-4164-1:0A7F5
Type debian
Reporter Debian
Modified 2018-04-03T16:02:38


Debian Security Advisory DSA-4164-1 security@debian.org https://www.debian.org/security/ Stefan Fritsch April 03, 2018 https://www.debian.org/security/faq

Package : apache2 CVE ID : CVE-2017-15710 CVE-2017-15715 CVE-2018-1283 CVE-2018-1301 CVE-2018-1303 CVE-2018-1312

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.


Elar Lang discovered that expression specified in <FilesMatch> could
match '$' to a newline character in a malicious filename, rather
than matching only the end of the filename. This could be exploited
in environments where uploads of some files are are externally
blocked, but only by matching the trailing portion of the filename.


When mod_session is configured to forward its session data to CGI
applications (SessionEnv on, not the default), a remote user could
influence their content by using a "Session" header.


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.


Robert Swiecki reported that a specially crafted HTTP request header
could have crashed the Apache HTTP Server if using
mod_cache_socache, due to an out of bound read while preparing data
to be cached in shared memory.


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 the oldstable distribution (jessie), these problems have been fixed in version 2.4.10-10+deb8u12.

For the stable distribution (stretch), these problems have been fixed in version 2.4.25-3+deb9u4.

We recommend that you upgrade your apache2 packages.

For the detailed security status of apache2 please refer to its security tracker page at: https://security-tracker.debian.org/tracker/apache2

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