CVE-2023-41909 — NULL Pointer Dereference in Frrouting

CWE-476 — NULL Pointer DereferenceCWE-354 — Improper Validation of Integrity Check Value9 documents7 sources
Severity
7.5HIGHNVD
GHSA5.9
EPSS
0.1%
top 71.83%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Debian FRRFrroutingDebian Linux+1 more
Timeline
PublishedSep 5
Latest updateAug 12

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages2 packages

▶debiandebian/frr< frr 8.4.4-1 (bookworm)

Also affects: Debian Linux 10.0, Fedora 37, 38, 39

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

4
GHSA
Apache MINA SSHD: integrity check bypass↗2024-08-12
▶
OSV
frr vulnerabilities↗2023-10-18
▶
OSV
CVE-2023-41909: An issue was discovered in FRRouting FRR through 9↗2023-09-05
▶
GHSA
GHSA-qvhj-42gp-xfmw: An issue was discovered in FRRouting FRR through 9↗2023-09-05
▶

📋Vendor Advisories

4
Red Hat
mina-sshd: integrity check bypass vulnerability↗2024-08-12
▶
Ubuntu
FRR vulnerabilities↗2023-10-18
▶
Red Hat
frr: NULL pointer dereference in bgp_nlri_parse_flowspec() in bgpd/bgp_flowspec.c↗2023-09-05
▶
Debian
CVE-2023-41909: frr - An issue was discovered in FRRouting FRR through 9.0. bgp_nlri_parse_flowspec in...↗2023
▶