Security update for apache2

SUSE Security Update: Security update for apache2
Announcement ID: SUSE-SU-2018:0901-1
Rating: important
References: #1057406 #1086774 #1086775 #1086813 #1086814 #1086817 #1086820
Affected Products:
  • SUSE Linux Enterprise Server 12-LTSS

  • An update that solves 6 vulnerabilities and has one errata is now available.


    This update for apache2 fixes the following issues:

    * CVE-2018-1283: when mod_session is configured to forward its session
    data to CGI applications (SessionEnv on, not the default), a remote
    user may influence their content by using a \"Session\" header leading
    to unexpected behavior [bsc#1086814].

    * CVE-2018-1301: due to an out of bound access after a size limit being
    reached by reading the HTTP header, a specially crafted request could
    lead to remote denial of service. [bsc#1086817]

    * CVE-2018-1303: a specially crafted HTTP request header could lead to
    crash due to an out of bound read while preparing data to be cached in
    shared memory.[bsc#1086813]

    * CVE-2017-15715: a regular expression could match '$' to a newline
    character in a malicious filename, rather than matching only the end
    of the filename. leading to corruption of uploaded files.[bsc#1086774]

    * CVE-2018-1312: when generating an HTTP Digest authentication
    challenge, the nonce sent 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. [bsc#1086775]

    * CVE-2017-15710: mod_authnz_ldap, if configured with
    AuthLDAPCharsetConfig, uses the Accept-Language header value to lookup
    the right charset encoding when verifying the user's credentials. If
    the header value is not present in the charset conversion table, a
    fallback mechanism is used to truncate it to a two characters value to
    allow a quick retry (for example, 'en-US' is truncated to 'en'). A
    header value of less than two characters forces an out of bound write
    of one NUL byte to a memory location that is not part of the string.
    In the worst case, quite unlikely, the process would crash which could
    be used as a Denial of Service attack. In the more likely case, this
    memory is already reserved for future use and the issue has no effect
    at all. [bsc#1086820]

    * gensslcert: fall back to 'localhost' as hostname [bsc#1057406]

    Patch Instructions:

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
    Alternatively you can run the command listed for your product:

    • SUSE Linux Enterprise Server 12-LTSS:
      zypper in -t patch SUSE-SLE-SERVER-12-2018-602=1

    Package List:

    • SUSE Linux Enterprise Server 12-LTSS (ppc64le s390x x86_64):
      • apache2-2.4.10-14.31.1
      • apache2-debuginfo-2.4.10-14.31.1
      • apache2-debugsource-2.4.10-14.31.1
      • apache2-example-pages-2.4.10-14.31.1
      • apache2-prefork-2.4.10-14.31.1
      • apache2-prefork-debuginfo-2.4.10-14.31.1
      • apache2-utils-2.4.10-14.31.1
      • apache2-utils-debuginfo-2.4.10-14.31.1
      • apache2-worker-2.4.10-14.31.1
      • apache2-worker-debuginfo-2.4.10-14.31.1
    • SUSE Linux Enterprise Server 12-LTSS (noarch):
      • apache2-doc-2.4.10-14.31.1