#VU72528 Resource exhaustion in Gnu Compiler Collection - CVE-2022-27943

Vulnerability identifier: #VU72528

Vulnerability 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

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Gnu Compiler Collection
Client/Desktop applications / Software for system administration

Vendor: GNU

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

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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/

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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.