Linux Kernel up to 6.14.4 crypto af_alg privilege escalation

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

Summaryinfo

A vulnerability classified as problematic was found in Linux Kernel up to 6.14.4. This affects the function af_alg of the component crypto. The manipulation results in an unknown weakness. This vulnerability is identified as CVE-2025-37808. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.14.4. It has been classified as problematic. Affected is the function af_alg of the component crypto. The impact remains unknown. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: crypto: null - Use spin lock instead of mutex As the null algorithm may be freed in softirq context through af_alg, use spin locks instead of mutexes to protect the default null algorithm.

The advisory is available at git.kernel.org. This vulnerability is traded as CVE-2025-37808 since 04/16/2025. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 237255 (Debian dla-4178 : ata-modules-5.10.0-34-armmp-di - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.4.293, 5.10.237, 5.15.181, 6.1.136, 6.6.89, 6.12.26, 6.14.5 or 6.15-rc1 eliminates this vulnerability. Applying the patch f7a5a5c8e1ec16a4b2041398abe95de0e14572ef/e307c54ac8198bf09652c72603ba6e6d97798410/1dd4a8561d85dea545cf93f56efc48df8176e218/e27244cbe10658a66b8775be7f0acc4ad2f618d6/1b66a5920b7fc7cc6251192a3fcad115b6d75dd5/0486de3c1b8223138dcc614846bd76364f758de6/8cf2945512a8c0ef74ddd5b5a4f6b6a2fb1a4efb/dcc47a028c24e793ce6d6efebfef1a1e92f80297 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 databases at Tenable (237255) and CERT Bund (WID-SEC-2025-0975). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • RESF Rocky Linux
  • Dell Avamar
  • Open Source Linux Kernel
  • Dell NetWorker
  • Dell Secure Connect Gateway

Productinfo

Type

Vendor

Name

Version

License

Website

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: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 237255
Nessus Name: Debian dla-4178 : ata-modules-5.10.0-34-armmp-di - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.4.293/5.10.237/5.15.181/6.1.136/6.6.89/6.12.26/6.14.5/6.15-rc1
Patch: f7a5a5c8e1ec16a4b2041398abe95de0e14572ef/e307c54ac8198bf09652c72603ba6e6d97798410/1dd4a8561d85dea545cf93f56efc48df8176e218/e27244cbe10658a66b8775be7f0acc4ad2f618d6/1b66a5920b7fc7cc6251192a3fcad115b6d75dd5/0486de3c1b8223138dcc614846bd76364f758de6/8cf2945512a8c0ef74ddd5b5a4f6b6a2fb1a4efb/dcc47a028c24e793ce6d6efebfef1a1e92f80297

Timelineinfo

04/16/2025 🔍
05/08/2025 +22 days 🔍
05/08/2025 +0 days 🔍
03/14/2026 +310 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-37808 (🔍)
GCVE (CVE): GCVE-0-2025-37808
GCVE (VulDB): GCVE-100-307986
CERT Bund: WID-SEC-2025-0975 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 05/08/2025 09:01
Updated: 03/14/2026 02:10
Changes: 05/08/2025 09:01 (57), 05/27/2025 05:45 (2), 09/08/2025 19:08 (7), 10/12/2025 22:00 (1), 11/10/2025 21:59 (11), 03/14/2026 02:10 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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