CVE-2023-38802
First published: Thu Aug 10 2023(Updated: )
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).
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Frrouting Frrouting | >=7.5.1<=9.0 | |
| Pica8 PICOS | =4.3.3.2 | |
| Debian Debian Linux | =10.0 | |
| Debian Debian Linux | =11.0 | |
| Debian Debian Linux | =12.0 | |
| Fedoraproject Fedora | =37 | |
| Fedoraproject Fedora | =38 | |
| Fedoraproject Fedora | =39 | |
| redhat/frr | <9.1 | 9.1 |
| redhat/frr | <8.4 | 8.4 |
| debian/frr | 7.5.1-1.1+deb11u2 7.5.1-1.1+deb11u3 8.4.4-1.1~deb12u1 10.1.1-0.1 10.2-2 |
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Reference Links
- https://blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handling
- https://lists.debian.org/debian-lts-announce/2023/09/msg00020.html
- https://news.ycombinator.com/item?id=37305800
- https://www.debian.org/security/2023/dsa-5495
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JLG64IF3FU7V76K4TKCCXVNEE6P2VUDO/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LMJNX44SMJM25JZO7XWHDQCOB4SNJPIE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WXR6PIVY4SWO7HDT4EY733H4X32SCPM4/
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2236442
- https://github.com/FRRouting/frr/pull/14290
- https://github.com/FRRouting/frr/issues/14289
- https://github.com/advisories/GHSA-xh4f-v933-c556
- https://nvd.nist.gov/vuln/detail/CVE-2023-38802
- http://tools.ietf.org/html/rfc4271
- https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/006_bgpd.patch.sig
- https://access.redhat.com/errata/RHSA-2023:5196
- https://access.redhat.com/errata/RHSA-2023:5194
- https://access.redhat.com/errata/RHSA-2023:5195
- https://access.redhat.com/errata/RHSA-2023:5219
- https://access.redhat.com/errata/RHSA-2023:5464
- https://access.redhat.com/errata/RHSA-2023:5457
- https://access.redhat.com/errata/RHSA-2023:5465
- https://bugzilla.redhat.com/show_bug.cgi?id=2230983
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LMJNX44SMJM25JZO7XWHDQCOB4SNJPIE/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WXR6PIVY4SWO7HDT4EY733H4X32SCPM4/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JLG64IF3FU7V76K4TKCCXVNEE6P2VUDO/
- https://launchpad.net/bugs/cve/CVE-2023-38802
- https://github.com/FRRouting/frr/commit/bcb6b58d9530173df41d3a3cbc4c600ee0b4b186
- https://github.com/FRRouting/frr/pull/14295
- https://github.com/FRRouting/frr/commit/46817adab03802355c3cce7b753c7a735bdcc5ae
- https://security-tracker.debian.org/tracker/CVE-2023-38802
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-38802
- https://ubuntu.com/security/CVE-2023-38802
Frequently Asked Questions
What is CVE-2023-38802?
CVE-2023-38802 is a vulnerability in FRRouting and Pica8 PICOS that allows a remote attacker to cause a denial of service by exploiting a corrupted attribute in a BGP update packet.
How does CVE-2023-38802 impact FRRouting?
CVE-2023-38802 affects FRRouting versions 7.5.1 through 9.0 and can lead to a denial of service attack.
How does CVE-2023-38802 impact Pica8 PICOS?
CVE-2023-38802 affects Pica8 PICOS version 4.3.3.2 and can lead to a denial of service attack.
How can I fix CVE-2023-38802 in FRRouting?
To fix CVE-2023-38802 in FRRouting, update to a version that is not affected, such as 9.0 or a later version, once it becomes available.
How can I fix CVE-2023-38802 in Pica8 PICOS?
To fix CVE-2023-38802 in Pica8 PICOS, update to version 4.3.3.3 or a later version, once it becomes available.
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