CVE-2022-47942
published 2022-12-23CVE-2022-47942: An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. There is a heap-based buffer overflow in set_ntacl_dacl, related to use…
PriorityP354high8.8CVSS 3.1
AVNACLPRLUINSUCHIHAH
EPSS
3.58%
88.1th percentile
An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. There is a heap-based buffer overflow in set_ntacl_dacl, related to use of SMB2_QUERY_INFO_HE after a malformed SMB2_SET_INFO_HE command.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.19.6-1 (bookworm) | linux 5.19.6-1 (bookworm) |
| linux | linux_kernel | >= 0 < 5.19.6-1 | 5.19.6-1 |
| linux | linux_kernel | >= 0 < 5.19.6-1 | 5.19.6-1 |
| linux | linux_kernel | >= 0 < 5.19.6-1 | 5.19.6-1 |
| linux | linux_kernel | >= 5.15 < 5.15.62 | 5.15.62 |
| linux | linux_kernel | >= 5.16 < 5.18.18 | 5.18.18 |
| linux | linux_kernel | >= 5.19 < 5.19.2 | 5.19.2 |
| msrc | cbl2_kernel_5.15.86.1-1_on_cbl_mariner_2.0 | — | — |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv8.8HIGH
vendor_debian8.8HIGH
vendor_msrc8.8HIGH
vendor_redhat8.8HIGH
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GHSA
GHSA-g2h7-7gvv-x89v: An issue was discovered in ksmbd in the Linux kernel before 5
ghsa_unreviewed·2022-12-23
CVE-2022-47942 [HIGH] CWE-787 GHSA-g2h7-7gvv-x89v: An issue was discovered in ksmbd in the Linux kernel before 5
An issue was discovered in ksmbd in the Linux kernel before 5.19.2. There is a heap-based buffer overflow in set_ntacl_dacl, related to use of SMB2_QUERY_INFO_HE after a malformed SMB2_SET_INFO_HE command.
OSV
CVE-2022-47942: An issue was discovered in ksmbd in the Linux kernel 5
osv·2022-12-23·CVSS 8.8
CVE-2022-47942 [HIGH] CVE-2022-47942: An issue was discovered in ksmbd in the Linux kernel 5
An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. There is a heap-based buffer overflow in set_ntacl_dacl, related to use of SMB2_QUERY_INFO_HE after a malformed SMB2_SET_INFO_HE command.
Red Hat
kernel: improper validation user-supplied data could lead in heap buffer overflow which can result in RCE
vendor_redhat·2022-12-22·CVSS 8.8
CVE-2022-47942 [HIGH] CWE-119 kernel: improper validation user-supplied data could lead in heap buffer overflow which can result in RCE
kernel: improper validation user-supplied data could lead in heap buffer overflow which can result in RCE
An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. There is a heap-based buffer overflow in set_ntacl_dacl, related to use of SMB2_QUERY_INFO_HE after a malformed SMB2_SET_INFO_HE command.
Statement: There was no shipped kernel version that was seen affected by this problem. These files are not built in our source code. See https://access.redhat.com/solutions/6991749 for more information.
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise Linux 7) - Not affected
Package: kernel-rt (Red Hat Enterprise Linux 7) - Not affected
Package: kernel (Red Hat Enterprise Linux 8) - Not affected
Package: kernel-r
Microsoft
An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. There is a heap-based buffer overflow in set_ntacl_dacl related to use of SMB2_QUERY_INFO_HE after a malformed SMB
vendor_msrc·2022-12-13·CVSS 8.8
CVE-2022-47942 [HIGH] CWE-787 An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. There is a heap-based buffer overflow in set_ntacl_dacl related to use of SMB2_QUERY_INFO_HE after a malformed SMB
An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. There is a heap-based buffer overflow in set_ntacl_dacl related to use of SMB2_QUERY_INFO_HE after a malformed SMB2_SET_INFO_HE command.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identifi
Debian
CVE-2022-47942: linux - An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5....
vendor_debian·2022·CVSS 8.8
CVE-2022-47942 [HIGH] CVE-2022-47942: linux - An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5....
An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. There is a heap-based buffer overflow in set_ntacl_dacl, related to use of SMB2_QUERY_INFO_HE after a malformed SMB2_SET_INFO_HE command.
Scope: local
bookworm: resolved (fixed in 5.19.6-1)
bullseye: resolved
forky: resolved (fixed in 5.19.6-1)
sid: resolved (fixed in 5.19.6-1)
trixie: resolved (fixed in 5.19.6-1)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
http://www.openwall.com/lists/oss-security/2022/12/23/10https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8f0541186e9ad1b62accc9519cc2b7a7240272a7https://github.com/torvalds/linux/commit/8f0541186e9ad1b62accc9519cc2b7a7240272a7https://www.zerodayinitiative.com/advisories/ZDI-22-1688/http://www.openwall.com/lists/oss-security/2022/12/23/10https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8f0541186e9ad1b62accc9519cc2b7a7240272a7https://github.com/torvalds/linux/commit/8f0541186e9ad1b62accc9519cc2b7a7240272a7https://www.zerodayinitiative.com/advisories/ZDI-22-1688/
2022-12-23
Published