ESB-2018.1058 - [SUSE] apache2: Multiple vulnerabilities - 2018-04-09

Hash: SHA256

             AUSCERT External Security Bulletin Redistribution

    Multiple vulnerabilities in apache2 on SUSE Linux Enterprise Server
                               9 April 2018


        AusCERT Security Bulletin Summary

Product:           apache2
Publisher:         SUSE
Operating System:  SUSE
Impact/Access:     Create Arbitrary Files   -- Existing Account      
                   Denial of Service        -- Remote/Unauthenticated
                   Unauthorised Access      -- Remote/Unauthenticated
                   Access Confidential Data -- Existing Account      
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-1312 CVE-2018-1303 CVE-2018-1301
                   CVE-2018-1283 CVE-2017-15715 CVE-2017-15710

Reference:         ESB-2018.1048

Original Bulletin:

- --------------------------BEGIN INCLUDED TEXT--------------------

   SUSE Security Update: Security update for apache2

Announcement ID:    SUSE-SU-2018:0901-1
Rating:             important
References:         #1057406 #1086774 #1086775 #1086813 #1086814 
                    #1086817 #1086820 
Cross-References:   CVE-2017-15710 CVE-2017-15715 CVE-2018-1283
                    CVE-2018-1301 CVE-2018-1303 CVE-2018-1312
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):


   - SUSE Linux Enterprise Server 12-LTSS (noarch):



- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

Australian Computer Emergency Response Team
The University of Queensland
Qld 4072

Internet Email:
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.