Linux Kernel up to 6.6.7 net/appletalk/ddp.c atalk_ioctl use after free

CVSS Meta Temp Score
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel up to 6.6.7. Affected by this issue is the function atalk_ioctl of the file net/appletalk/ddp.c. This manipulation causes use after free. The identification of this vulnerability is CVE-2023-51781. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.6.7 (Operating System). It has been declared as problematic. Affected by this vulnerability is the function atalk_ioctl of the file net/appletalk/ddp.c. 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. The impact remains unknown. The summary by CVE is:

An issue was discovered in the Linux kernel before 6.6.8. atalk_ioctl in net/appletalk/ddp.c has a use-after-free because of an atalk_recvmsg race condition.

The weakness was shared 12/26/2023 as 189ff16722ee36ced4d2a2469d4ab65a8fee4198. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2023-51781 since 12/25/2023. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 6.6.8 eliminates this vulnerability. The upgrade is hosted for download at cdn.kernel.org. Applying the patch 189ff16722ee36ced4d2a2469d4ab65a8fee4198 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.6
VulDB Meta Temp Score: 4.4

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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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: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 6.6.8
Patch: 189ff16722ee36ced4d2a2469d4ab65a8fee4198

Timelineinfo

12/25/2023 🔍
12/26/2023 +1 days 🔍
12/26/2023 +0 days 🔍
12/26/2023 +0 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: 189ff16722ee36ced4d2a2469d4ab65a8fee4198
Status: Confirmed

CVE: CVE-2023-51781 (🔍)
GCVE (CVE): GCVE-0-2023-51781
GCVE (VulDB): GCVE-100-249019

Entryinfo

Created: 12/26/2023 08:51
Changes: 12/26/2023 08:51 (45)
Complete: 🔍
Cache ID: 216::103

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