CVE-2021-47358
Linux kernel Greybus UART Use After Free Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: staging: greybus: uart: fix tty use after free User space can hold a tty open indefinitely and tty drivers must not release the underlying structures until the last user is gone. Switch to using the tty-port reference counter to manage the life time of the greybus tty state to avoid use after free after a disconnect.
INFO
Published Date :
May 21, 2024, 3:15 p.m.
Last Modified :
Dec. 26, 2024, 7:31 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-47358.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-47358 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47358 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Dec. 26, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.9 up to (excluding) 4.9.285 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.249 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.209 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.150 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.70 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.14.9 *cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:* Changed Reference Type https://git.kernel.org/stable/c/4dc56951a8d9d61d364d346c61a5f1d70b4f5e14 No Types Assigned https://git.kernel.org/stable/c/4dc56951a8d9d61d364d346c61a5f1d70b4f5e14 Patch Changed Reference Type https://git.kernel.org/stable/c/4dc56951a8d9d61d364d346c61a5f1d70b4f5e14 No Types Assigned https://git.kernel.org/stable/c/4dc56951a8d9d61d364d346c61a5f1d70b4f5e14 Patch Changed Reference Type https://git.kernel.org/stable/c/64062fcaca8872f063ec9da011e7bf30470be33f No Types Assigned https://git.kernel.org/stable/c/64062fcaca8872f063ec9da011e7bf30470be33f Patch Changed Reference Type https://git.kernel.org/stable/c/64062fcaca8872f063ec9da011e7bf30470be33f No Types Assigned https://git.kernel.org/stable/c/64062fcaca8872f063ec9da011e7bf30470be33f Patch Changed Reference Type https://git.kernel.org/stable/c/92b67aaafb7c449db9f0c3dcabc0ff967cb3a42d No Types Assigned https://git.kernel.org/stable/c/92b67aaafb7c449db9f0c3dcabc0ff967cb3a42d Patch Changed Reference Type https://git.kernel.org/stable/c/92b67aaafb7c449db9f0c3dcabc0ff967cb3a42d No Types Assigned https://git.kernel.org/stable/c/92b67aaafb7c449db9f0c3dcabc0ff967cb3a42d Patch Changed Reference Type https://git.kernel.org/stable/c/92dc0b1f46e12cfabd28d709bb34f7a39431b44f No Types Assigned https://git.kernel.org/stable/c/92dc0b1f46e12cfabd28d709bb34f7a39431b44f Patch Changed Reference Type https://git.kernel.org/stable/c/92dc0b1f46e12cfabd28d709bb34f7a39431b44f No Types Assigned https://git.kernel.org/stable/c/92dc0b1f46e12cfabd28d709bb34f7a39431b44f Patch Changed Reference Type https://git.kernel.org/stable/c/9872ff6fdce8b229f01993b611b5d1719cb70ff1 No Types Assigned https://git.kernel.org/stable/c/9872ff6fdce8b229f01993b611b5d1719cb70ff1 Patch Changed Reference Type https://git.kernel.org/stable/c/9872ff6fdce8b229f01993b611b5d1719cb70ff1 No Types Assigned https://git.kernel.org/stable/c/9872ff6fdce8b229f01993b611b5d1719cb70ff1 Patch Changed Reference Type https://git.kernel.org/stable/c/a5cfd51f6348e8fd7531461366946039c29c7e69 No Types Assigned https://git.kernel.org/stable/c/a5cfd51f6348e8fd7531461366946039c29c7e69 Patch Changed Reference Type https://git.kernel.org/stable/c/a5cfd51f6348e8fd7531461366946039c29c7e69 No Types Assigned https://git.kernel.org/stable/c/a5cfd51f6348e8fd7531461366946039c29c7e69 Patch Changed Reference Type https://git.kernel.org/stable/c/b9e697e60ce9890e9258a73eb061288e7d68e5e6 No Types Assigned https://git.kernel.org/stable/c/b9e697e60ce9890e9258a73eb061288e7d68e5e6 Patch Changed Reference Type https://git.kernel.org/stable/c/b9e697e60ce9890e9258a73eb061288e7d68e5e6 No Types Assigned https://git.kernel.org/stable/c/b9e697e60ce9890e9258a73eb061288e7d68e5e6 Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/4dc56951a8d9d61d364d346c61a5f1d70b4f5e14 Added Reference https://git.kernel.org/stable/c/64062fcaca8872f063ec9da011e7bf30470be33f Added Reference https://git.kernel.org/stable/c/92b67aaafb7c449db9f0c3dcabc0ff967cb3a42d Added Reference https://git.kernel.org/stable/c/92dc0b1f46e12cfabd28d709bb34f7a39431b44f Added Reference https://git.kernel.org/stable/c/9872ff6fdce8b229f01993b611b5d1719cb70ff1 Added Reference https://git.kernel.org/stable/c/a5cfd51f6348e8fd7531461366946039c29c7e69 Added Reference https://git.kernel.org/stable/c/b9e697e60ce9890e9258a73eb061288e7d68e5e6 -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 21, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: staging: greybus: uart: fix tty use after free User space can hold a tty open indefinitely and tty drivers must not release the underlying structures until the last user is gone. Switch to using the tty-port reference counter to manage the life time of the greybus tty state to avoid use after free after a disconnect. Added Reference kernel.org https://git.kernel.org/stable/c/92b67aaafb7c449db9f0c3dcabc0ff967cb3a42d [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/64062fcaca8872f063ec9da011e7bf30470be33f [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/a5cfd51f6348e8fd7531461366946039c29c7e69 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/4dc56951a8d9d61d364d346c61a5f1d70b4f5e14 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/b9e697e60ce9890e9258a73eb061288e7d68e5e6 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/9872ff6fdce8b229f01993b611b5d1719cb70ff1 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/92dc0b1f46e12cfabd28d709bb34f7a39431b44f [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47358 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-47358
weaknesses.