#VU80059 Stack-based buffer overflow in libeconf - CVE-2023-30079

Vulnerability identifier: #VU80059

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-30079

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
libeconf
Universal components / Libraries / Libraries used by multiple products

Vendor: SUSE

Description

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

The vulnerability exists due to a boundary error within the read_file() function in atlibeconf/lib/getfilecontents.c. A remote unauthenticated attacker can trigger a stack-based buffer overflow and execute arbitrary code on the target system.

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

Mitigation
Install updates from vendor's website.

Vulnerable software versions

libeconf: 0.0.9 - 0.5.1

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External links
https://raw.githubusercontent.com/yangjiageng/PoC/master/libeconf-PoC/tst-logindefs1.c
https://github.com/openSUSE/libeconf/issues/177
https://github.com/yangjiageng/PoC/blob/master/libeconf-PoC/read_file_503

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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.