Denial of service in GNU Binutils



| Updated: 2022-08-15
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-3530
CWE-ID CWE-674
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Binutils
Universal components / Libraries / Libraries used by multiple products

Vendor GNU

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Uncontrolled Recursion

EUVDB-ID: #VU66490

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-3530

CWE-ID: CWE-674 - Uncontrolled Recursion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to uncontrolled recursion within the demangle_path() function in rust-demangle.c in GNU libiberty. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Binutils: 2.36

CPE2.3 External links

https://bugzilla.redhat.com/show_bug.cgi?id=1956423
https://src.fedoraproject.org/rpms/binutils/blob/rawhide/f/binutils-CVE-2021-3530.patch
https://security.netapp.com/advisory/ntap-20210716-0006/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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