CVE-2023-41909: debian debian_linux NULL Pointer Dereference
CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2023-41909DEBIAN-CVE-2023-41909openSUSE-SU-2024:13238-1
Published 05-09-2023Last modified 02-08-2024
Vulnerability summary
CVE-2023-41909 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in debian debian_linux. EPSS estimates a 1.12% chance of exploitation in the next 30 days, higher than 65.6% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
1.12%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 8 · Related 4Timeline
- 05-09-2023PublishedVulnerability first disclosed.
- 02-08-2024Last modifiedVulnerability information updated.
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 metrics
3 scores · 3 sources · 1 versionHigh 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
1.12%
Chance of exploitation in the next 30 days
Percentile
66%
Versus all other CVEs
30-day change
0.00 pp
From 1.12% on 19-09-2026
19-09-202619-10-2026
EPSS score1.12%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian2 products
- frr< 8.4.4-1
- debian_linuxEOL10.0
Fedoraproject1 product
- fedoraEOL37 | 38 | 39
Frrouting1 product
- frrouting≤ 9.0
Opensuse1 product
- frr&distro=openSUSE Tumbleweed< 8.4-6.1
Ubuntu1 product
- frr< 7.2.1-1ubuntu0.2+esm1 | < 8.1-1ubuntu1.6
5 vendors · 6 products
