CVE-2021-47186
published 2024-04-10CVE-2021-47186: In the Linux kernel, the following vulnerability has been resolved: tipc: check for null after calling kmemdup kmemdup can return a null pointer so need to…
PriorityP418medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.22%
12.8th percentile
In the Linux kernel, the following vulnerability has been resolved:
tipc: check for null after calling kmemdup
kmemdup can return a null pointer so need to check for it, otherwise
the null key will be dereferenced later in tipc_crypto_key_xmit as
can be seen in the trace [1].
[1] https://syzkaller.appspot.com/bug?id=bca180abb29567b189efdbdb34cbf7ba851c2a58
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.15.5-1 (bookworm) | linux 5.15.5-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 1ef6f7c9390ff5308c940ff8d0a53533a4673ad9 < a7d91625863d4ffed63b993b5e6dc1298b6430c9 | a7d91625863d4ffed63b993b5e6dc1298b6430c9 |
| linux | linux | >= 1ef6f7c9390ff5308c940ff8d0a53533a4673ad9 < 9404c4145542c23019a80ab1bb2ecf73cd057b10 | 9404c4145542c23019a80ab1bb2ecf73cd057b10 |
| linux | linux | >= 1ef6f7c9390ff5308c940ff8d0a53533a4673ad9 < 3e6db079751afd527bf3db32314ae938dc571916 | 3e6db079751afd527bf3db32314ae938dc571916 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.84-1 | 5.10.84-1 |
| linux | linux_kernel | >= 0 < 5.15.5-1 | 5.15.5-1 |
| linux | linux_kernel | >= 0 < 5.15.5-1 | 5.15.5-1 |
| linux | linux_kernel | >= 0 < 5.15.5-1 | 5.15.5-1 |
| linux | linux_kernel | >= 5.11 < 5.15.5 | 5.15.5 |
| linux | linux_kernel | >= 5.5 < 5.10.82 | 5.10.82 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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GHSA
GHSA-vfmv-3fmr-wr8p: In the Linux kernel, the following vulnerability has been resolved:
tipc: check for null after calling kmemdup
kmemdup can return a null pointer so
ghsa_unreviewed·2024-04-10
CVE-2021-47186 [HIGH] CWE-690 GHSA-vfmv-3fmr-wr8p: In the Linux kernel, the following vulnerability has been resolved:
tipc: check for null after calling kmemdup
kmemdup can return a null pointer so
In the Linux kernel, the following vulnerability has been resolved:
tipc: check for null after calling kmemdup
kmemdup can return a null pointer so need to check for it, otherwise
the null key will be dereferenced later in tipc_crypto_key_xmit as
can be seen in the trace [1].
[1] https://syzkaller.appspot.com/bug?id=bca180abb29567b189efdbdb34cbf7ba851c2a58
OSV
CVE-2021-47186: In the Linux kernel, the following vulnerability has been resolved: tipc: check for null after calling kmemdup kmemdup can return a null pointer so ne
osv·2024-04-10·CVSS 5.5
CVE-2021-47186 [MEDIUM] CVE-2021-47186: In the Linux kernel, the following vulnerability has been resolved: tipc: check for null after calling kmemdup kmemdup can return a null pointer so ne
In the Linux kernel, the following vulnerability has been resolved: tipc: check for null after calling kmemdup kmemdup can return a null pointer so need to check for it, otherwise the null key will be dereferenced later in tipc_crypto_key_xmit as can be seen in the trace [1]. [1] https://syzkaller.appspot.com/bug?id=bca180abb29567b189efdbdb34cbf7ba851c2a58
Red Hat
kernel: tipc: check for null after calling kmemdup
vendor_redhat·2024-04-10·CVSS 5.5
CVE-2021-47186 [MEDIUM] CWE-690 kernel: tipc: check for null after calling kmemdup
kernel: tipc: check for null after calling kmemdup
In the Linux kernel, the following vulnerability has been resolved:
tipc: check for null after calling kmemdup
kmemdup can return a null pointer so need to check for it, otherwise
the null key will be dereferenced later in tipc_crypto_key_xmit as
can be seen in the trace [1].
[1] https://syzkaller.appspot.com/bug?id=bca180abb29567b189efdbdb34cbf7ba851c2a58
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) - Affected
Package: kernel-rt (Red Hat Enterprise Linux 8) - Affected
Package: kernel (Red Hat Enterprise Linux 9) - Not affected
Package: kernel-rt (Red
Debian
CVE-2021-47186: linux - In the Linux kernel, the following vulnerability has been resolved: tipc: check...
vendor_debian·2021·CVSS 5.5
CVE-2021-47186 [MEDIUM] CVE-2021-47186: linux - In the Linux kernel, the following vulnerability has been resolved: tipc: check...
In the Linux kernel, the following vulnerability has been resolved: tipc: check for null after calling kmemdup kmemdup can return a null pointer so need to check for it, otherwise the null key will be dereferenced later in tipc_crypto_key_xmit as can be seen in the trace [1]. [1] https://syzkaller.appspot.com/bug?id=bca180abb29567b189efdbdb34cbf7ba851c2a58
Scope: local
bookworm: resolved (fixed in 5.15.5-1)
bullseye: resolved (fixed in 5.10.84-1)
forky: resolved (fixed in 5.15.5-1)
sid: resolved (fixed in 5.15.5-1)
trixie: resolved (fixed in 5.15.5-1)
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/3e6db079751afd527bf3db32314ae938dc571916https://git.kernel.org/stable/c/9404c4145542c23019a80ab1bb2ecf73cd057b10https://git.kernel.org/stable/c/a7d91625863d4ffed63b993b5e6dc1298b6430c9https://git.kernel.org/stable/c/3e6db079751afd527bf3db32314ae938dc571916https://git.kernel.org/stable/c/9404c4145542c23019a80ab1bb2ecf73cd057b10https://git.kernel.org/stable/c/a7d91625863d4ffed63b993b5e6dc1298b6430c9
2024-04-10
Published