Linux Kernel up to 5.18.2 libipw_xmit null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.18.2. It has been classified as critical. This vulnerability affects the function libipw_xmit. The manipulation leads to null pointer dereference. This vulnerability is listed as CVE-2022-49544. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.18.2 and classified as critical. This issue affects the function libipw_xmit. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: ipw2x00: Fix potential NULL dereference in libipw_xmit() crypt and crypt->ops could be null, so we need to checking null before dereference

The advisory is shared at git.kernel.org. The identification of this vulnerability is CVE-2022-49544 since 02/26/2025. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 234545 (SUSE SLES12 Security Update : kernel (SUSE-SU-2025:1293-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.9.318, 4.14.283, 4.19.247, 5.4.198, 5.10.121, 5.15.46, 5.17.14 or 5.18.3 eliminates this vulnerability. Applying the patch 1ff6b0727c8988f25eeb670b6c038c1120bb58dd/b4628e0d3754ab2fc98ee6e3d21851ba45798077/167affc11781d7d35c4c3a7630a549ac74dd0b21/8fb1b9beb085bb767ae43e441db5ac6fcd66a04d/98d1dc32f890642476dbb78ed3437a456bf421b0/48d4a820fd33f012e5f63735a59d15b5a3882882/5f7ea274e88c0eeffe6bd6dbf6cf5c479d356af6/528d2023ccf4748fd542582955236c1634a7d293/e8366bbabe1d207cf7c5b11ae50e223ae6fc278b is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (234545). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

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: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 234545
Nessus Name: SUSE SLES12 Security Update : kernel (SUSE-SU-2025:1293-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.9.318/4.14.283/4.19.247/5.4.198/5.10.121/5.15.46/5.17.14/5.18.3
Patch: 1ff6b0727c8988f25eeb670b6c038c1120bb58dd/b4628e0d3754ab2fc98ee6e3d21851ba45798077/167affc11781d7d35c4c3a7630a549ac74dd0b21/8fb1b9beb085bb767ae43e441db5ac6fcd66a04d/98d1dc32f890642476dbb78ed3437a456bf421b0/48d4a820fd33f012e5f63735a59d15b5a3882882/5f7ea274e88c0eeffe6bd6dbf6cf5c479d356af6/528d2023ccf4748fd542582955236c1634a7d293/e8366bbabe1d207cf7c5b11ae50e223ae6fc278b

Timelineinfo

02/26/2025 🔍
02/26/2025 +0 days 🔍
02/26/2025 +0 days 🔍
04/17/2025 +50 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-49544 (🔍)
GCVE (CVE): GCVE-0-2022-49544
GCVE (VulDB): GCVE-100-297113

Entryinfo

Created: 02/26/2025 10:21
Updated: 04/17/2025 17:14
Changes: 02/26/2025 10:21 (58), 04/17/2025 17:14 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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