Vulnerability · Published Sep 5, 2023 · Assigned by mitre
CVE-2023-41909
High 7.5
In plain English
A high-severity security flaw in the frr package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 66% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)1.1%top 33.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An issue was discovered in FRRouting FRR through 9.0. bgp_nlri_parse_flowspec in bgpd/bgp_flowspec.c processes malformed requests with no attributes, leading to a NULL pointer dereference.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | frr | 7.5.1-22.el8 | ALSA-2024:2981 |
| AlmaLinux:9 | frr | 8.5.3-4.el9 | ALSA-2024:2156 |
| AlmaLinux:8 | frr-selinux | 7.5.1-22.el8 | ALSA-2024:2981 |
| AlmaLinux:9 | frr-selinux | 8.5.3-4.el9 | ALSA-2024:2156 |
| Debian:12 | frr | 8.4.4-1 | DEBIAN-CVE-2023-41909 |
| Debian:13 | frr | 8.4.4-1 | DEBIAN-CVE-2023-41909 |
| Debian:14 | frr | 8.4.4-1 | DEBIAN-CVE-2023-41909 |
| Rocky Linux:8 | frr | 0:7.5.1-22.el8 | RLSA-2024:2981 |
| Ubuntu:22.04:LTS | frr | 8.1-1ubuntu1.6 | UBUNTU-CVE-2023-41909 |
| Ubuntu:22.04:LTS | frr | 8.1-1ubuntu1.6 | USN-6436-1 |
Affected products (as reported)
References
- https://github.com/FRRouting/frr/pull/13222/commits/cfd04dcb3e689754a72507d086ba3b9709fc5ed8
- [debian-lts-announce] 20230919 [SECURITY] [DLA 3573-1] frr security update mailing-list
- FEDORA-2023-514db5339e vendor-advisory
- FEDORA-2023-ce436d56f8 vendor-advisory
- FEDORA-2023-61abba57d8 vendor-advisory