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Public proof of conceptFix available

CVE-2023-38802

A public proof of concept exists; no exploitation attested.

  • Published2023-08-29
  • WeaknessCWE-354

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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).

Timeline

dates in UTC
  1. 2023-08-2916:15CVE publishedNVD

Versions per branch

NVD
Debian debian linux
BranchAffectedFixed in
10.0= 10.0no fix published
11.0= 11.0no fix published
12.0= 12.0no fix published
Fedoraproject fedora
BranchAffectedFixed in
37.x= 37no fix published
38.x= 38no fix published
39.x= 39no fix published
Frrouting
BranchAffectedFixed in
9.0≥ 7.5.1, ≤ 9.0no fix published

1 more product in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • frrUbuntu:Pro:20.04:LTSall versions · fixed in 7.2.1-1ubuntu0.2+esm2
  • frrUbuntu:22.04:LTSall versions · fixed in 8.1-1ubuntu1.5
  • frrSUSE:Manager Server 4.2all versions · fixed in 7.4-150300.4.17.1
  • frrSUSE:Manager Proxy 4.2all versions · fixed in 7.4-150300.4.17.1
  • frrSUSE:Linux Enterprise Server for SAP Applications 15 SP3all versions · fixed in 7.4-150300.4.17.1
  • frrSUSE:Linux Enterprise Server 15 SP3-LTSSall versions · fixed in 7.4-150300.4.17.1
  • frrSUSE:Linux Enterprise Module for Server Applications 15 SP6all versions · fixed in 8.5.6-150500.4.30.1
  • frrSUSE:Linux Enterprise Module for Server Applications 15 SP5all versions · fixed in 8.4-150500.4.8.1

49 more package ranges on OSV.dev

Vendor advisories

  • CVE-2023-38802 Red Hat Product Security103 products fixed

    frr: Incorrect handling of a error in parsing of an invalid section of a BGP update can de-peer a router

  • ICSA-24-102-04 CISA1 known affected

    Siemens RUGGEDCOM APE1808

    RUGGEDCOM APE1808

  • SSA-455250 Siemens ProductCERT1 known affected

    SSA-455250: Multiple Vulnerabilities in Palo Alto Networks Virtual NGFW on RUGGEDCOM APE1808 Devices Before V11.1.2-h3

    RUGGEDCOM APE1808

  • RHSA-2023:5457 Red Hat Product Security13 products fixed

    Red Hat Security Advisory: frr security update

  • RHSA-2023:5465 Red Hat Product Security19 products fixed

    Red Hat Security Advisory: frr security update

  • RHSA-2023:5464 Red Hat Product Security9 products fixed

    Red Hat Security Advisory: frr security update

4 more advisories

Full record on NVD

Fix

  1. Vendor fix CISA ICSA-24-102-04 · 1 productUpgrade Palo Alto Networks Virtual NGFW V11.1.2-h3. Contact customer support to receive patch and update information
  2. Vendor fix Siemens ProductCERT SSA-455250 · 1 productUpgrade Palo Alto Networks Virtual NGFW V11.1.2-h3. Contact customer support to receive patch and update information
  3. Vendor fix Red Hat Product Security RHSA-2023:5457 · 13 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2023-08-29
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-xh4f-v933-c556

Frequently asked questions

What is CVE-2023-38802?

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).

Is CVE-2023-38802 actively exploited?

A proof-of-concept exploit exists for CVE-2023-38802, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2023-38802?

CVE-2023-38802 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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