Debian: DSA-4164-1: apache2 security update

    Date03 Apr 2018
    CategoryDebian
    3251
    Posted ByAnthony Pell
    Several vulnerabilities have been found in the Apache HTTPD server. CVE-2017-15710
    
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    Debian Security Advisory DSA-4164-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                           Stefan Fritsch
    April 03, 2018                        https://www.debian.org/security/faq
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    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.
    
    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-2017-15715
    
        Elar Lang discovered that expression specified in  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.
    
    CVE-2018-1283
    
        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.
    
    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-2018-1303
    
        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.
    
    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 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: This email address is being protected from spambots. You need JavaScript enabled to view it.
    
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