# CVE-2023-41359: frr: FRRouting is free software that manages TCP/IP based routing protocols

CVE-2023-41359 is fixed in 2 products on 1 platform, first by RHSA-2024:2156, released April 30, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-41359
- Priority: Routine
- CVSS: 5.9 (Moderate)
- EPSS: 0.0115
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 30, 2024

## Description

FRRouting is free software that manages TCP/IP based routing protocols. It supports BGP4, OSPFv2, OSPFv3, ISIS, RIP, RIPng, PIM, NHRP, PBR, EIGRP and BFD.   Security Fix(es):  * frr: incorrect length check in bgp_capability_llgr() can lead do DoS (CVE-2023-31489)  * frr: missing length check in bgp_attr_psid_sub() can lead do DoS (CVE-2023-31490)  * frr: processes invalid NLRIs if attribute length is zero (CVE-2023-41358)  * frr: out of bounds read in bgp_attr_aigp_valid (CVE-2023-41359)  * frr: NULL pointer dereference in bgp_nlri_parse_flowspec() in bgpd/bgp_flowspec.c (CVE-2023-41909)  * frr: mishandled malformed data leading to a crash (CVE-2023-46752)  * frr: crafted BGP UPDATE message leading to a crash (CVE-2023-46753)  * frr: ahead-of-stream read of ORF header (CVE-2023-41360)  For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.  Additional Changes:  For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.4 Release Notes linked from the References section.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | frr RHEL 9 | 0:8.5.3-4.el9 | [RHSA-2024:2156](https://patchblox.com/security/data/fix/linux/rhsa-2024-2156.md) | Apr 30, 2024 |
| Linux | frr almalinux 9 | 8.5.3-4.el9 | [ALSA-2024:2156](https://patchblox.com/security/data/fix/linux/alsa-2024-2156.md) | Apr 30, 2024 |
| Linux | frr ol 9 | 0:8.5.3-4.el9 | [ELSA-2024-2156](https://patchblox.com/security/data/fix/linux/elsa-2024-2156.md) | May 2, 2024 |
| Linux | frr-selinux RHEL 9 | 0:8.5.3-4.el9 | [RHSA-2024:2156](https://patchblox.com/security/data/fix/linux/rhsa-2024-2156.md) | Apr 30, 2024 |
| Linux | frr-selinux almalinux 9 | 8.5.3-4.el9 | [ALSA-2024:2156](https://patchblox.com/security/data/fix/linux/alsa-2024-2156.md) | Apr 30, 2024 |
| Linux | frr-selinux ol 9 | 0:8.5.3-4.el9 | [ELSA-2024-2156](https://patchblox.com/security/data/fix/linux/elsa-2024-2156.md) | May 2, 2024 |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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