Denial of service in FRRouting



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-38407
CWE-ID CWE-125
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		frr
Other software / Other software solutions

Vendor

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Out-of-bounds read

EUVDB-ID: #VU82898

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-38407

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition during labeled unicast parsing in bgpd/bgp_label.c. A remote attacker can send specially crafted input to the application, trigger an out-of-bounds read error and crash the daemon.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

frr: before 8.5

CPE2.3
External links

http://github.com/FRRouting/frr/pull/12956
http://github.com/FRRouting/frr/compare/frr-8.5-rc...frr-8.5
http://github.com/FRRouting/frr/pull/12951


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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