#VU59952 Heap-based buffer overflow in AIDE - CVE-2021-45417

Vulnerability identifier: #VU59952

Vulnerability risk: Low

CVSSv4.0: 5.9 [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:U/U:Clear]

CVE-ID: CVE-2021-45417

CWE-ID: CWE-122

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
AIDE
Web applications / Modules and components for CMS

Vendor: AIDE

Description

The vulnerability allows a local user to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in src/base64.h. A local user can use specially crafted file metadata, trigger heap-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 update from vendor's website.

Vulnerable software versions

AIDE: 0.13 - 0.17.3

---

External links
https://www.openwall.com/lists/oss-security/2022/01/20/3
https://www.openwall.com/lists/oss-security/2022/01/20/3
https://www.debian.org/security/2022/dsa-5051

---

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.