CVE-2021-47401
published 2024-05-21CVE-2021-47401: In the Linux kernel, the following vulnerability has been resolved: ipack: ipoctal: fix stack information leak The tty driver name is used also after…
PriorityP424medium5.5CVSS 3.1
AVLACLPRLUINSUCHINAN
EPSS
0.25%
16.4th percentile
In the Linux kernel, the following vulnerability has been resolved:
ipack: ipoctal: fix stack information leak
The tty driver name is used also after registering the driver and must
specifically not be allocated on the stack to avoid leaking information
to user space (or triggering an oops).
Drivers should not try to encode topology information in the tty device
name but this one snuck in through staging without anyone noticing and
another driver has since copied this malpractice.
Fixing the ABI is a separate issue, but this at least plugs the security
hole.
Affected
24 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.14.12-1 (bookworm) | linux 5.14.12-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= ba4dc61fe8c545a5d6a68b63616776556b771f51 < acb96e782bad427ca4bb1bd94af660acd1462380 | acb96e782bad427ca4bb1bd94af660acd1462380 |
| linux | linux | >= ba4dc61fe8c545a5d6a68b63616776556b771f51 < 741ea2670e021350e54f491106bdaa22dc50e6a0 | 741ea2670e021350e54f491106bdaa22dc50e6a0 |
| linux | linux | >= ba4dc61fe8c545a5d6a68b63616776556b771f51 < 2725925982dc96a78069cd118ea3d66759bfdad7 | 2725925982dc96a78069cd118ea3d66759bfdad7 |
| linux | linux | >= ba4dc61fe8c545a5d6a68b63616776556b771f51 < 829f13d6079cf7a2465522f39acb43033e9b320d | 829f13d6079cf7a2465522f39acb43033e9b320d |
| linux | linux | >= ba4dc61fe8c545a5d6a68b63616776556b771f51 < 8657158a3b68c85234e6da3d8eae33d6183588b7 | 8657158a3b68c85234e6da3d8eae33d6183588b7 |
| linux | linux | >= ba4dc61fe8c545a5d6a68b63616776556b771f51 < 5f6a309a699675680df15d9b6d389114515b4426 | 5f6a309a699675680df15d9b6d389114515b4426 |
| linux | linux | >= ba4dc61fe8c545a5d6a68b63616776556b771f51 < 0a9c36a2e06a249acbed64e8e0b84637c2ad7575 | 0a9c36a2e06a249acbed64e8e0b84637c2ad7575 |
| linux | linux | >= ba4dc61fe8c545a5d6a68b63616776556b771f51 < a89936cce87d60766a75732a9e7e25c51164f47c | a89936cce87d60766a75732a9e7e25c51164f47c |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.84-1 | 5.10.84-1 |
| linux | linux_kernel | >= 0 < 5.14.12-1 | 5.14.12-1 |
| linux | linux_kernel | >= 0 < 5.14.12-1 | 5.14.12-1 |
| linux | linux_kernel | >= 0 < 5.14.12-1 | 5.14.12-1 |
| linux | linux_kernel | >= 3.5 < 4.4.286 | 4.4.286 |
| linux | linux_kernel | >= 4.10 < 4.14.249 | 4.14.249 |
| linux | linux_kernel | >= 4.15 < 4.19.209 | 4.19.209 |
| linux | linux_kernel | >= 4.20 < 5.4.151 | 5.4.151 |
| linux | linux_kernel | >= 4.5 < 4.9.285 | 4.9.285 |
| linux | linux_kernel | >= 5.11 < 5.14.10 | 5.14.10 |
| linux | linux_kernel | >= 5.5 < 5.10.71 | 5.10.71 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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OSV
CVE-2021-47401: In the Linux kernel, the following vulnerability has been resolved: ipack: ipoctal: fix stack information leak The tty driver name is used also after
osv·2024-05-21·CVSS 5.5
CVE-2021-47401 [MEDIUM] CVE-2021-47401: In the Linux kernel, the following vulnerability has been resolved: ipack: ipoctal: fix stack information leak The tty driver name is used also after
In the Linux kernel, the following vulnerability has been resolved: ipack: ipoctal: fix stack information leak The tty driver name is used also after registering the driver and must specifically not be allocated on the stack to avoid leaking information to user space (or triggering an oops). Drivers should not try to encode topology information in the tty device name but this one snuck in through staging without anyone noticing and another driver has since copied this malpractice. Fixing the ABI is a separate issue, but this at least plugs the security hole.
GHSA
GHSA-c227-q7j7-xf88: In the Linux kernel, the following vulnerability has been resolved:
ipack: ipoctal: fix stack information leak
The tty driver name is used also afte
ghsa_unreviewed·2024-05-21
CVE-2021-47401 [HIGH] CWE-668 GHSA-c227-q7j7-xf88: In the Linux kernel, the following vulnerability has been resolved:
ipack: ipoctal: fix stack information leak
The tty driver name is used also afte
In the Linux kernel, the following vulnerability has been resolved:
ipack: ipoctal: fix stack information leak
The tty driver name is used also after registering the driver and must
specifically not be allocated on the stack to avoid leaking information
to user space (or triggering an oops).
Drivers should not try to encode topology information in the tty device
name but this one snuck in through staging without anyone noticing and
another driver has since copied this malpractice.
Fixing the ABI is a separate issue, but this at least plugs the security
hole.
Red Hat
kernel: ipack: ipoctal: fix stack information leak
vendor_redhat·2024-05-21·CVSS 5.5
CVE-2021-47401 [MEDIUM] CWE-402 kernel: ipack: ipoctal: fix stack information leak
kernel: ipack: ipoctal: fix stack information leak
In the Linux kernel, the following vulnerability has been resolved:
ipack: ipoctal: fix stack information leak
The tty driver name is used also after registering the driver and must
specifically not be allocated on the stack to avoid leaking information
to user space (or triggering an oops).
Drivers should not try to encode topology information in the tty device
name but this one snuck in through staging without anyone noticing and
another driver has since copied this malpractice.
Fixing the ABI is a separate issue, but this at least plugs the security
hole.
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 affect
Debian
CVE-2021-47401: linux - In the Linux kernel, the following vulnerability has been resolved: ipack: ipoc...
vendor_debian·2021·CVSS 5.5
CVE-2021-47401 [MEDIUM] CVE-2021-47401: linux - In the Linux kernel, the following vulnerability has been resolved: ipack: ipoc...
In the Linux kernel, the following vulnerability has been resolved: ipack: ipoctal: fix stack information leak The tty driver name is used also after registering the driver and must specifically not be allocated on the stack to avoid leaking information to user space (or triggering an oops). Drivers should not try to encode topology information in the tty device name but this one snuck in through staging without anyone noticing and another driver has since copied this malpractice. Fixing the ABI is a separate issue, but this at least plugs the security hole.
Scope: local
bookworm: resolved (fixed in 5.14.12-1)
bullseye: resolved (fixed in 5.10.84-1)
forky: resolved (fixed in 5.14.12-1)
sid: resolved (fixed in 5.14.12-1)
trixie: resolved (fixed in 5.14.12-1)
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/0a9c36a2e06a249acbed64e8e0b84637c2ad7575https://git.kernel.org/stable/c/2725925982dc96a78069cd118ea3d66759bfdad7https://git.kernel.org/stable/c/5f6a309a699675680df15d9b6d389114515b4426https://git.kernel.org/stable/c/741ea2670e021350e54f491106bdaa22dc50e6a0https://git.kernel.org/stable/c/829f13d6079cf7a2465522f39acb43033e9b320dhttps://git.kernel.org/stable/c/8657158a3b68c85234e6da3d8eae33d6183588b7https://git.kernel.org/stable/c/a89936cce87d60766a75732a9e7e25c51164f47chttps://git.kernel.org/stable/c/acb96e782bad427ca4bb1bd94af660acd1462380https://git.kernel.org/stable/c/0a9c36a2e06a249acbed64e8e0b84637c2ad7575https://git.kernel.org/stable/c/2725925982dc96a78069cd118ea3d66759bfdad7https://git.kernel.org/stable/c/5f6a309a699675680df15d9b6d389114515b4426https://git.kernel.org/stable/c/741ea2670e021350e54f491106bdaa22dc50e6a0https://git.kernel.org/stable/c/829f13d6079cf7a2465522f39acb43033e9b320dhttps://git.kernel.org/stable/c/8657158a3b68c85234e6da3d8eae33d6183588b7https://git.kernel.org/stable/c/a89936cce87d60766a75732a9e7e25c51164f47chttps://git.kernel.org/stable/c/acb96e782bad427ca4bb1bd94af660acd1462380
2024-05-21
Published