CVE-2023-23009
First published: Tue Feb 21 2023(Updated: )
Libreswan 4.9 allows remote attackers to cause a denial of service (assert failure and daemon restart) via crafted TS payload with an incorrect selector length.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Libreswan Libreswan | =4.9 | |
| Debian Debian Linux | =11.0 | |
| debian/libreswan | 3.27-6+deb10u1 4.3-1+deb11u4 4.3-1+deb11u3 4.10-2+deb12u1 4.12-1 | |
| debian/libreswan | <=4.3-1<=4.7-1<=4.3-1+deb11u1<=4.9-1 | 4.9-2 4.10-1 4.3-1+deb11u3 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://github.com/libreswan/libreswan/issues/954
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2MFOIQX2LRL43P3GJT33DE7G7COHNXDN/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CSMYJH7MC2FZGCY5NH5AXULO3ISXIHOF/
- https://www.debian.org/security/2023/dsa-5368
- https://libreswan.org/security/CVE-2023-23009/CVE-2023-23009.txt
- https://security-tracker.debian.org/tracker/CVE-2023-23009
- https://salsa.debian.org/debian/libreswan
- https://security-tracker.debian.org/tracker/CVE-2022-23094
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1031821
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2MFOIQX2LRL43P3GJT33DE7G7COHNXDN/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CSMYJH7MC2FZGCY5NH5AXULO3ISXIHOF/
Frequently Asked Questions
What is CVE-2023-23009?
CVE-2023-23009 is a vulnerability in Libreswan 4.9 that allows remote attackers to cause a denial of service by triggering an assert failure and daemon restart with a crafted TS payload.
How does CVE-2023-23009 affect Libreswan?
CVE-2023-23009 affects Libreswan 4.9, leading to a denial of service issue.
What is the severity of CVE-2023-23009?
CVE-2023-23009 has a severity rating of 6.5 (medium).
How can I fix CVE-2023-23009 on Debian Linux?
To fix CVE-2023-23009 on Debian Linux, update the libreswan package to version 4.3-1+deb11u3 or later.
Where can I find more information about CVE-2023-23009?
You can find more information about CVE-2023-23009 at the following references: [link1], [link2], [link3].
- collector/nvd-index
- collector/security-tracker-debian
- collector/debian-bugs
- alias/CVE-2023-23009
- agent/tags
- agent/weakness
- agent/severity
- agent/author
- agent/type
- agent/event
- agent/description
- agent/remedy
- agent/last-modified-date
- agent/softwarecombine
- agent/first-publish-date
- agent/references
- collector/mitre-cve
- source/MITRE
- vendor/libreswan
- canonical/libreswan libreswan
- version/libreswan libreswan/4.9
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/11.0
- package-manager/debian