Vulnerability identifier: #VU16063

Vulnerability risk: Low

CVSSv3.1: 7.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2018-19416

CWE-ID: CWE-121

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
sysstat
Client/Desktop applications / Other client software

Vendor: GODARD Sebastien

Description

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

The vulnerability exists due to out-of-bounds read in the remap_struct function in sa_common.c during a memmove call. A local attacker can control src and n of memmove, trigger stack-based buffer overflow and execute arbitrary code with elevated privileges.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

sysstat: 12.1.1

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External links
http://bugzilla.redhat.com/show_bug.cgi?id=1652728

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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.