#VU74337 Out-of-bounds read in GlusterFS - CVE-2023-26253

Vulnerability identifier: #VU74337

Vulnerability risk: Low

CVSSv4.0: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-26253

CWE-ID: CWE-125

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
GlusterFS
Server applications / File servers (FTP/HTTP)

Vendor: Gluster Inc.

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition within the notify() function in xlators/mount/fuse/src/fuse-bridge.c. A remote local user can trigger an out-of-bounds read error and perform a denial of service (DoS) attack.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

GlusterFS: 10.0 - 11.0

---

External links
https://github.com/gluster/glusterfs/issues/3954

---

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.