CVE-2023-38802: debian debian_linux
CVSS: 7.5v3.1HighModified
AliasesRHSA-2023:5194RHSA-2023:5195RHSA-2023:5196RHSA-2023:5219RHSA-2023:5457RHSA-2023:5464RHSA-2023:5465UBUNTU-CVE-2023-38802USN-6323-1DEBIAN-CVE-2023-38802
Published 29-08-2023Last modified 02-10-2024
Vulnerability summary
CVE-2023-38802 is a high (CVSS 7.5) vulnerability in debian debian_linux. EPSS estimates a 1.78% chance of exploitation in the next 30 days, higher than 77.9% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
1.78%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Advisory lineage
Upstream 0 · Downstream 10 · Related 8Timeline
- 29-08-2023PublishedVulnerability first disclosed.
- 02-10-2024Last modifiedVulnerability information updated.
Description
FRRouting FRR 7.5.1 through 9.0 and Pica8 PICOS 4.3.3.2 allow a remote attacker to cause a denial of service via a crafted BGP update with a corrupted attribute 23 (Tunnel Encapsulation).
CVSS metrics
4 scores · 4 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 4 agree
- OSV · Red hatEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- 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
1.78%
Chance of exploitation in the next 30 days
Percentile
78%
Versus all other CVEs
30-day change
0.00 pp
From 1.78% on 19-09-2026
19-09-202619-10-2026
EPSS score1.78%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (blog.benjojo.co.uk)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Redhat5 products
- frr< 0:8.3.1-5.el9_2.2 | < 0:7.5-11.el8_6.2 | < 0:7.5-4.el8_4.4 | < 0:7.5.1-7.el8_8.2 | < 0:8.0-5.el9_0.1 | < 0:7.0-5.el8_1.1 | < 0:7.0-5.el8_2.1
- frr-contrib< 0:7.0-5.el8_1.1 | < 0:7.0-5.el8_2.1
- frr-debuginfo< 0:8.3.1-5.el9_2.2 | < 0:7.5-11.el8_6.2 | < 0:7.5-4.el8_4.4 | < 0:7.5.1-7.el8_8.2 | < 0:8.0-5.el9_0.1 | < 0:7.0-5.el8_1.1 | < 0:7.0-5.el8_2.1
- frr-debugsource< 0:8.3.1-5.el9_2.2 | < 0:7.5-11.el8_6.2 | < 0:7.5-4.el8_4.4 | < 0:7.5.1-7.el8_8.2 | < 0:8.0-5.el9_0.1 | < 0:7.0-5.el8_1.1 | < 0:7.0-5.el8_2.1
- frr-selinux< 0:8.3.1-5.el9_2.2 | < 0:7.5.1-7.el8_8.2
Debian2 products
- frr< 8.4.4-1.1~deb12u1 | < 8.4.4-1.1
- debian_linuxEOL10.0 | 11.0 | 12.0
Fedoraproject1 product
- fedoraEOL37 | 38 | 39
Frrouting1 product
- frrouting≥ 7.5.1, ≤ 9.0
Pica81 product
- picos4.3.3.2
Ubuntu1 product
- frr< 7.2.1-1ubuntu0.2+esm2 | < 8.1-1ubuntu1.5
6 vendors · 11 products
References
35 links- blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handlingARTICLEREPORTExploitTechnical DescriptionThird Party Advisory
- news.ycombinator.com/item?id=37305800Third Party Advisory