#VU12977 Integer overflow in procps - CVE-2018-1124

Vulnerability identifier: #VU12977

Vulnerability risk: Low

CVSSv4.0: 7.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2018-1124

CWE-ID: CWE-190

Exploitation vector: Local

Exploit availability: Yes

Vulnerable software:
procps
Client/Desktop applications / Software for system administration

Vendor: procps-ng

Description
The vulnerability allows a local attacker to gain elevated privileges on the target system.

The weakness exists due to integer overflow in libprocps's file2strvec() function. A local attacker can execute a vulnerable utility (pgrep, pidof, pkill, and w are vulnerable by default; other utilities are vulnerable if executed with non-default options) and gain elevated privileges.

Mitigation
Update to version 3.3.15.

Vulnerable software versions

procps: All versions

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External links
https://www.qualys.com/2018/05/17/procps-ng-audit-report-advisory.txt

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.