CVE-2022-43681 Denial of service in n/a

What is CVE-2022-43681?

CVE-2022-43681 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 3 May 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An out-of-bounds read exists in the BGP daemon of FRRouting FRR through 8.4. When sending a malformed BGP OPEN message that ends with the option length octet (or the option length word, in case of an extended OPEN message), the FRR code reads of out of the bounds of the packet, throwing a SIGABRT signal and exiting. This results in a bgpd daemon restart, causing a Denial-of-Service condition.

Weakness: CWE-125

Which versions are affected by CVE-2022-43681?

It affects 2 products.

Products include Debian Debian Linux, Frrouting Frrouting.

How do I fix CVE-2022-43681?

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-2022-43681 being exploited?

There is no known exploitation of CVE-2022-43681 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2022-43681, GHSA-x7mf-v6gh-vm4g.