CVE-2022-47941: Linux Kernel ksmbd Memory Exhaustion Denial-of-Service Vulnerability
First published: Fri Dec 23 2022(Updated: )
An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. fs/ksmbd/smb2pdu.c omits a kfree call in certain smb2_handle_negotiate error conditions, aka a memory leak.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=5.15<5.15.61 | |
| Linux Linux kernel | >=5.16<5.18.18 | |
| Linux Linux kernel | >=5.19<5.19.2 | |
| Linux kernel | ||
| >=5.15<5.15.61 | ||
| >=5.16<5.18.18 | ||
| >=5.19<5.19.2 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- http://www.openwall.com/lists/oss-security/2022/12/23/10
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=aa7253c2393f6dcd6a1468b0792f6da76edad917
- https://github.com/torvalds/linux/commit/aa7253c2393f6dcd6a1468b0792f6da76edad917
- https://www.zerodayinitiative.com/advisories/ZDI-22-1687/
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.61
Frequently Asked Questions
What is CVE-2022-47941?
CVE-2022-47941 is a vulnerability in the Linux Kernel that allows remote attackers to create a denial-of-service condition.
Is authentication required to exploit CVE-2022-47941?
No, authentication is not required to exploit CVE-2022-47941.
What is the severity of CVE-2022-47941?
The severity of CVE-2022-47941 is high, with a CVSS score of 7.5.
Which versions of Linux Kernel are affected by CVE-2022-47941?
Versions of Linux Kernel between 5.15 and 5.15.61, between 5.16 and 5.18.18, and between 5.19 and 5.19.2 are affected by CVE-2022-47941.
How can I fix CVE-2022-47941?
To fix CVE-2022-47941, update your Linux Kernel to a version that is not affected by the vulnerability.
- collector/nvd-index
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/weakness
- agent/remedy
- agent/references
- agent/severity
- agent/title
- agent/first-publish-date
- agent/description
- collector/zdi-advisory
- source/ZDI
- alias/ZDI-22-1687
- alias/ZDI-CAN-17815
- alias/CVE-2022-47941
- agent/software-canonical-lookup
- collector/nvd-api
- source/NVD
- agent/last-modified-date
- agent/author
- agent/softwarecombine
- agent/tags
- agent/event
- agent/trending
- vendor/linux
- canonical/linux linux kernel
- version/linux linux kernel/5.15
- version/linux linux kernel/5.16
- version/linux linux kernel/5.19
- canonical/linux kernel