#VU77081 Integer overflow in sysstat - CVE-2023-33204

Vulnerability identifier: #VU77081

Vulnerability risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-33204

CWE-ID: CWE-190

Exploitation vector: Network

Exploit availability: No

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

Vendor: GODARD Sebastien

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow within the check_overflow() function in common.c. A remote attacker can trigger an integer overflow and execute arbitrary code on the target system.

Note, the vulnerability exists due to incomplete fix for #VU69196 (CVE-2022-39377).

Mitigation
Install updates from vendor's website.

Vulnerable software versions

sysstat: 4.0.7 - 12.7.2

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External links
https://github.com/sysstat/sysstat/pull/360
https://lists.debian.org/debian-lts-announce/2023/05/msg00026.html
https://github.com/sysstat/sysstat/commit/954ff2e2673cef48f0ed44668c466eab041db387
https://github.com/sysstat/sysstat/issues/359

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.