CVE-2022-47941
HIGHCVSS 7.5/10EPSS 4.91%
Last modified
CVE-2022-47941 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 4.91% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.15, < 5.15.61 |
| Linux | Linux Kernel | >= 5.16, < 5.18.18 |
| Linux | Linux Kernel | >= 5.19, < 5.19.2 |
References
- http://www.openwall.com/lists/oss-security/2022/12/23/10Mailing List, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2Mailing List, Patch, Vendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=aa7253c2393f6dcd6a1468b0792f6da76edad917Mailing List, Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/aa7253c2393f6dcd6a1468b0792f6da76edad917Patch, Third Party Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-22-1687/Third Party Advisory, VDB Entry
- http://www.openwall.com/lists/oss-security/2022/12/23/10Mailing List, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2Mailing List, Patch, Vendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=aa7253c2393f6dcd6a1468b0792f6da76edad917Mailing List, Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/aa7253c2393f6dcd6a1468b0792f6da76edad917Patch, Third Party Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-22-1687/Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2022-47941?
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.
How severe is CVE-2022-47941?
CVE-2022-47941 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 4.91% probability of exploitation in the next 30 days.
How do I fix CVE-2022-47941?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2022-47941?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST