CVE-2022-37035: frrouting Race Condition

Vulnerability summary

CVE-2022-37035 is a high (CVSS 8.1) Race Condition vulnerability in frrouting. EPSS estimates a 2.65% chance of exploitation in the next 30 days, higher than 85.4% of scored vulnerabilities. 2 public exploits are recorded.

Timeline

1. 02-08-2022
   PublishedVulnerability first disclosed.
2. 04-11-2025
   Last modifiedVulnerability information updated.

Description

An issue was discovered in bgpd in FRRouting (FRR) 8.3. In bgp_notify_send_with_data() and bgp_process_packet() in bgp_packet.c, there is a possible use-after-free due to a race condition. This could lead to Remote Code Execution or Information Disclosure by sending crafted BGP packets. User interaction is not needed for exploitation.

• CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.