Libreswan up to 4.11 IKEv1 Quick Mode ID null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Libreswan up to 4.11. It has been classified as problematic. This issue affects some unknown processing of the component IKEv1 Quick Mode ID Handler. This manipulation causes null pointer dereference. This vulnerability is tracked as CVE-2023-38711. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic was found in Libreswan up to 4.11. Affected by this vulnerability is an unknown code block of the component IKEv1 Quick Mode ID Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability.

The weakness was disclosed 08/09/2023. It is possible to read the advisory at libreswan.org. This vulnerability is known as CVE-2023-38711 since 07/24/2023. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 211987 (RHEL 9 : libreswan (RHSA-2024:10594)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.12 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (211987), EUVD (EUVD-2023-42486) and CERT Bund (WID-SEC-2023-2853). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Open Source CentOS
  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • Gentoo Linux
  • Red Hat OpenShift
  • Meinberg LANTIME

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 211987
Nessus Name: RHEL 9 : libreswan (RHSA-2024:10594)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Libreswan 4.12

Timelineinfo

07/24/2023 🔍
08/09/2023 +16 days 🔍
08/09/2023 +0 days 🔍
01/20/2026 +895 days 🔍

Sourcesinfo

Advisory: libreswan.org
Status: Confirmed

CVE: CVE-2023-38711 (🔍)
GCVE (CVE): GCVE-0-2023-38711
GCVE (VulDB): GCVE-100-236647
EUVD: 🔍
CERT Bund: WID-SEC-2023-2853 - Red Hat Enterprise Linux: Mehrere Schwachstellen

Entryinfo

Created: 08/09/2023 11:57
Updated: 01/20/2026 02:51
Changes: 08/09/2023 11:57 (38), 09/02/2023 14:47 (1), 09/02/2023 14:49 (11), 12/02/2024 19:01 (17), 01/02/2026 03:03 (7), 01/20/2026 02:51 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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