SUSE-SU-2018:2042-1: moderate: Security update for procps

[sle-security-updates at lists.suse.com]

   SUSE Security Update: Security update for procps
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Announcement ID:    SUSE-SU-2018:2042-1
Rating:             moderate
References:         #1092100 
Cross-References:   CVE-2018-1122 CVE-2018-1123 CVE-2018-1124
                    CVE-2018-1125 CVE-2018-1126
Affected Products:
                    SUSE Linux Enterprise Server 11-SP4
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   An update that fixes 5 vulnerabilities is now available.

Description:

   This update for procps fixes the following security issues:

   - CVE-2018-1122: Prevent local privilege escalation in top. If a user ran
     top with HOME unset in an attacker-controlled directory, the attacker
     could have achieved privilege escalation by exploiting one of several
     vulnerabilities in the config_file() function (bsc#1092100).
   - CVE-2018-1123: Prevent denial of service in ps via mmap buffer overflow.
     Inbuilt protection in ps maped a guard page at the end of the overflowed
     buffer, ensuring that the impact of this flaw is limited to a crash
     (temporary denial of service) (bsc#1092100).
   - CVE-2018-1124: Prevent multiple integer overflows leading to a heap
     corruption in file2strvec function. This allowed a privilege escalation
     for a local attacker who can create entries in procfs by starting
     processes, which could result in crashes or arbitrary code execution in
     proc utilities run by
     other users (bsc#1092100).
   - CVE-2018-1125: Prevent stack buffer overflow in pgrep. This
     vulnerability was mitigated by FORTIFY limiting the impact to a crash
     (bsc#1092100).
   - CVE-2018-1126: Ensure correct integer size in proc/alloc.* to prevent
     truncation/integer overflow issues (bsc#1092100).


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 11-SP4:

      zypper in -t patch slessp4-procps-13699=1



Package List:

   - SUSE Linux Enterprise Server 11-SP4 (i586 ia64 ppc64 s390x x86_64):

      procps-3.2.7-152.31.1


References:

   https://www.suse.com/security/cve/CVE-2018-1122.html
   https://www.suse.com/security/cve/CVE-2018-1123.html
   https://www.suse.com/security/cve/CVE-2018-1124.html
   https://www.suse.com/security/cve/CVE-2018-1125.html
   https://www.suse.com/security/cve/CVE-2018-1126.html
   https://bugzilla.suse.com/1092100