CVE-2022-23094: Null Pointer Dereference
First published: Sat Jan 15 2022(Updated: )
Libreswan 4.2 through 4.5 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted IKEv1 packet because pluto/ikev1.c wrongly expects that a state object exists. This is fixed in 4.6.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/libreswan | 3.27-6+deb10u1 4.3-1+deb11u4 4.3-1+deb11u3 4.10-2+deb12u1 4.12-1 | |
| Libreswan Libreswan | >=4.2<4.6 | |
| Fedoraproject Fedora | =34 | |
| Fedoraproject Fedora | =35 | |
| Debian Debian Linux | =10.0 |
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Reference Links
- https://github.com/libreswan/libreswan/issues/585
- https://libreswan.org/security/CVE-2022-23094/CVE-2022-23094.txt
- https://libreswan.org/security/CVE-2022-23094/CVE-2022-23094-libreswan-4.2-4.3.patch
- https://libreswan.org/security/CVE-2022-23094/CVE-2022-23094-libreswan-4.4-4.5.patch
- https://security-tracker.debian.org/tracker/CVE-2022-23094
- https://libreswan.org/security/CVE-2022-23094
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HPMIHAXWQUJAPCIGNJ5J5Q6ASWQBU7T5/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UFZ7WP5LNNBW5ADIOPDSPQ23SXZJRNMP/
- https://www.debian.org/security/2022/dsa-5048
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UFZ7WP5LNNBW5ADIOPDSPQ23SXZJRNMP/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HPMIHAXWQUJAPCIGNJ5J5Q6ASWQBU7T5/
Frequently Asked Questions
What is the vulnerability ID of this issue?
The vulnerability ID of this issue is CVE-2022-23094.
What is the severity of CVE-2022-23094?
The severity of CVE-2022-23094 is high with a severity value of 7.5.
How does CVE-2022-23094 affect Libreswan?
CVE-2022-23094 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) in Libreswan versions 4.2 through 4.5.
How can I fix CVE-2022-23094?
You can fix CVE-2022-23094 by updating to Libreswan version 4.6 or applying the patch provided by the vendor.
Where can I find more information about CVE-2022-23094?
You can find more information about CVE-2022-23094 at the following references: [link1], [link2], [link3].
- collector/security-tracker-debian
- collector/nvd-index
- agent/severity
- agent/author
- agent/tags
- agent/event
- agent/weakness
- agent/description
- agent/type
- agent/last-modified-date
- agent/softwarecombine
- agent/first-publish-date
- agent/references
- collector/mitre-cve
- source/MITRE
- package-manager/debian
- vendor/libreswan
- canonical/libreswan libreswan
- version/libreswan libreswan/4.2
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/34
- version/fedoraproject fedora/35
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/10.0