Linux Kernel up to 6.6.7 net/atm/ioctl.c do_vcc_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, was found in Linux Kernel up to 6.6.7. This affects the function do_vcc_ioctl of the file net/atm/ioctl.c. Such manipulation leads to use after free. This vulnerability is referenced as CVE-2023-51780. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.6.7 (Operating System). It has been rated as problematic. Affected by this issue is the function do_vcc_ioctl of the file net/atm/ioctl.c. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to 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. CVE summarizes:

An issue was discovered in the Linux kernel before 6.6.8. do_vcc_ioctl in net/atm/ioctl.c has a use-after-free because of a vcc_recvmsg race condition.

The weakness was published 12/26/2023 as 24e90b9e34f9e039f56b5f25f6e6eb92cdd8f4b3. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2023-51780 since 12/25/2023. There are known technical details, but no exploit is available.

Upgrading to version 6.6.8 eliminates this vulnerability. The upgrade is hosted for download at cdn.kernel.org. Applying the patch 24e90b9e34f9e039f56b5f25f6e6eb92cdd8f4b3 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.

Once again VulDB remains the best source 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: 24e90b9e34f9e039f56b5f25f6e6eb92cdd8f4b3

Timelineinfo

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

Sourcesinfo

Vendor: kernel.org

Advisory: 24e90b9e34f9e039f56b5f25f6e6eb92cdd8f4b3
Status: Confirmed

CVE: CVE-2023-51780 (🔍)
GCVE (CVE): GCVE-0-2023-51780
GCVE (VulDB): GCVE-100-249020

Entryinfo

Created: 12/26/2023 08:52
Changes: 12/26/2023 08:52 (45)
Complete: 🔍
Cache ID: 216::103

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