Denial of service in GNU GCC



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-27943
CWE-ID CWE-400
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Gnu Compiler Collection
Client/Desktop applications / Software for system administration

Vendor GNU

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Resource exhaustion

EUVDB-ID: #VU72528

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-27943

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to application does not properly control consumption of internal resources within demangle_const in libiberty/rust-demangle.c. A local user can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Gnu Compiler Collection: 11.1.0 - 11.2.0

CPE2.3 External links

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105039
https://sourceware.org/bugzilla/show_bug.cgi?id=28995
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/H424YXGW7OKXS2NCAP35OP6Y4P4AW6VG/


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.



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