High severity7.5NVD Advisory· Published Sep 5, 2023· Updated Jun 17, 2026
CVE-2023-41909
CVE-2023-41909
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
18- osv-coords16 versionspkg:rpm/almalinux/frrpkg:rpm/almalinux/frr-selinuxpkg:rpm/opensuse/frr&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/frr&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/frr&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/frr&distro=openSUSE%20Tumbleweedpkg:rpm/suse/frr&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/frr&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-ESPOSpkg:rpm/suse/frr&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSSpkg:rpm/suse/frr&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP4pkg:rpm/suse/frr&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP5pkg:rpm/suse/frr&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP6pkg:rpm/suse/frr&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSSpkg:rpm/suse/frr&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3pkg:rpm/suse/frr&distro=SUSE%20Manager%20Proxy%204.2pkg:rpm/suse/frr&distro=SUSE%20Manager%20Server%204.2
< 8.5.3-4.el9+ 15 more
- (no CPE)range: < 8.5.3-4.el9
- (no CPE)range: < 8.5.3-4.el9
- (no CPE)range: < 7.4-150300.4.17.1
- (no CPE)range: < 8.4-150500.4.8.1
- (no CPE)range: < 8.5.6-150500.4.30.1
- (no CPE)range: < 8.4-6.1
- (no CPE)range: < 7.4-150300.4.17.1
- (no CPE)range: < 7.4-150300.4.17.1
- (no CPE)range: < 7.4-150300.4.17.1
- (no CPE)range: < 7.4-150300.4.17.1
- (no CPE)range: < 8.4-150500.4.8.1
- (no CPE)range: < 8.5.6-150500.4.30.1
- (no CPE)range: < 7.4-150300.4.17.1
- (no CPE)range: < 7.4-150300.4.17.1
- (no CPE)range: < 7.4-150300.4.17.1
- (no CPE)range: < 7.4-150300.4.17.1
Patches
Vulnerability mechanics
References
5- github.com/FRRouting/frr/pull/13222/commits/cfd04dcb3e689754a72507d086ba3b9709fc5ed8nvdPatch
- lists.debian.org/debian-lts-announce/2023/09/msg00020.htmlnvdMailing ListThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JLG64IF3FU7V76K4TKCCXVNEE6P2VUDO/nvdMailing List
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LMJNX44SMJM25JZO7XWHDQCOB4SNJPIE/nvdMailing List
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WXR6PIVY4SWO7HDT4EY733H4X32SCPM4/nvdMailing List
News mentions
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