SUSE-SU-2018:2042-1

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SUSE-SU-2018:2042-1

Summary: Security update for procps

Details: 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).

References: https://www.suse.com/support/update/announcement/2018/suse-su-20182042-1/, https://bugzilla.suse.com/1092100, https://www.suse.com/security/cve/CVE-2018-1122, https://www.suse.com/security/cve/CVE-2018-1123, https://www.suse.com/security/cve/CVE-2018-1124, https://www.suse.com/security/cve/CVE-2018-1125, https://www.suse.com/security/cve/CVE-2018-1126