Linux Kernel up to 6.14.8 crypto algif_hash use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.7$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Linux Kernel up to 6.14.8. This vulnerability affects the function algif_hash of the component crypto. Executing a manipulation can lead to use after free. This vulnerability appears as CVE-2025-38079. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 6.14.8 and classified as critical. This vulnerability affects the function algif_hash of the component crypto. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: crypto: algif_hash - fix double free in hash_accept If accept(2) is called on socket type algif_hash with MSG_MORE flag set and crypto_ahash_import fails, sk2 is freed. However, it is also freed in af_alg_release, leading to slab-use-after-free error.

The advisory is available at git.kernel.org. This vulnerability was named CVE-2025-38079 since 04/16/2025. The exploitation appears to be easy. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 12/17/2025).

The vulnerability scanner Nessus provides a plugin with the ID 241773 (Amazon Linux 2023 : bpftool, kernel6.12, kernel6.12-modules-extra (ALAS2023-2025-1052)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.4.294, 5.10.238, 5.15.185, 6.1.141, 6.6.93, 6.12.31 or 6.14.9 eliminates this vulnerability. Applying the patch 5bff312b59b3f2a54ff504e4f4e47272b64f3633/bf7bba75b91539e93615f560893a599c1e1c98bf/c3059d58f79fdfb2201249c2741514e34562b547/f0f3d09f53534ea385d55ced408f2b67059b16e4/134daaba93193df9e988524b5cd2f52d15eb1993/2f45a8d64fb4ed4830a4b3273834ecd6ca504896/0346f4b742345d1c733c977f3a7aef5a6419a967/b2df03ed4052e97126267e8c13ad4204ea6ba9b6 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 (241773), EUVD (EUVD-2025-18574) and CERT Bund (WID-SEC-2025-1905). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • IBM QRadar SIEM

Productinfo

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Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.9
VulDB Meta Temp Score: 7.7

VulDB Base Score: 8.0
VulDB Temp Score: 7.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
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: 241773
Nessus Name: Amazon Linux 2023 : bpftool, kernel6.12, kernel6.12-modules-extra (ALAS2023-2025-1052)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.4.294/5.10.238/5.15.185/6.1.141/6.6.93/6.12.31/6.14.9
Patch: 5bff312b59b3f2a54ff504e4f4e47272b64f3633/bf7bba75b91539e93615f560893a599c1e1c98bf/c3059d58f79fdfb2201249c2741514e34562b547/f0f3d09f53534ea385d55ced408f2b67059b16e4/134daaba93193df9e988524b5cd2f52d15eb1993/2f45a8d64fb4ed4830a4b3273834ecd6ca504896/0346f4b742345d1c733c977f3a7aef5a6419a967/b2df03ed4052e97126267e8c13ad4204ea6ba9b6

Timelineinfo

04/16/2025 🔍
06/18/2025 +63 days 🔍
06/18/2025 +0 days 🔍
12/17/2025 +182 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-38079 (🔍)
GCVE (CVE): GCVE-0-2025-38079
GCVE (VulDB): GCVE-100-312898
EUVD: 🔍
CERT Bund: WID-SEC-2025-1905 - IBM QRadar SIEM Komponente: Mehrere Schwachstellen

Entryinfo

Created: 06/18/2025 12:52
Updated: 12/17/2025 18:28
Changes: 06/18/2025 12:52 (59), 06/18/2025 16:17 (1), 07/11/2025 15:08 (2), 08/27/2025 10:49 (7), 12/17/2025 18:28 (12)
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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