Security restrictions bypass in Gnu Compiler Collection (gcc)



Published: 2023-09-21
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-4039
CWE-ID CWE-254
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Gnu Compiler Collection
Client/Desktop applications / Software for system administration

Vendor GNU

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Security features bypass

EUVDB-ID: #VU81045

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2023-4039

CWE-ID:

Exploit availability:

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to the GCC's stack smashing protection does not detect or defend against overflows of dynamically-sized local variables on AArch64 targets. A remote attacker can bypass expected security restrictions and successfully exploit buffer overflow vulnerabilities.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Gnu Compiler Collection: 2.8.0 - 13.2.0

Fixed software versions

CPE2.3 External links

http://github.com/metaredteam/external-disclosures/security/advisories/GHSA-x7ch-h5rf-w2mf
http://developer.arm.com/Arm%20Security%20Center/GCC%20Stack%20Protector%20Vulnerability%20AArch64


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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