CVE-2023-46753 Denial of service in n/a

What is CVE-2023-46753?

CVE-2023-46753 is a medium-severity denial of service vulnerability in n/a, published on 26 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in FRRouting FRR through 9.0.1. A crash can occur for a crafted BGP UPDATE message without mandatory attributes, e.g., one with only an unknown transit attribute.

Weakness: CWE-863

Which versions are affected by CVE-2023-46753?

It affects 1 product.

Products include Frrouting Frrouting.

How do I fix CVE-2023-46753?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2023-46753 being exploited?

There is no known exploitation of CVE-2023-46753 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2024-44070 Denial of service in n/a Critical 9.8
• CVE-2023-38406 bgpd/bgp_flowspec.c in FRRouting (FRR) before 8.4.3 mishandles an nlri length of zero, aka a "flowspec overflow." Critical 9.8
• CVE-2022-37035 Use after free in n/a High 8.1
• CVE-2022-26127 Memory corruption in FRRouting High 7.8
• CVE-2022-26128 Memory corruption in FRRouting High 7.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-31728, AZL-34689, DEBIAN-CVE-2023-46753, GHSA-33fq-cj88-4v27, UBUNTU-CVE-2023-46753.