CVE-2022-48627
Vulnerability in VT: Memory Overlapping Copy
Description
In the Linux kernel, the following vulnerability has been resolved: vt: fix memory overlapping when deleting chars in the buffer A memory overlapping copy occurs when deleting a long line. This memory overlapping copy can cause data corruption when scr_memcpyw is optimized to memcpy because memcpy does not ensure its behavior if the destination buffer overlaps with the source buffer. The line buffer is not always broken, because the memcpy utilizes the hardware acceleration, whose result is not deterministic. Fix this problem by using replacing the scr_memcpyw with scr_memmovew.
INFO
Published Date :
March 2, 2024, 10:15 p.m.
Last Modified :
April 29, 2025, 4:51 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
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-2022-48627.
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-2022-48627 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-48627 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.
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Initial Analysis by [email protected]
Apr. 29, 2025
Action Type Old Value New Value Added CWE CWE-787 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.19:rc6:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.274 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.132 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.56 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 5.18.13 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.7 up to (including) 4.19.312 Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Added Reference Type CVE: https://git.kernel.org/stable/c/14d2cc21ca622310babf373e3a8f0b40acfe8265 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/14d2cc21ca622310babf373e3a8f0b40acfe8265 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/39cdb68c64d84e71a4a717000b6e5de208ee60cc Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/39cdb68c64d84e71a4a717000b6e5de208ee60cc Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/57964a5710252bc82fe22d9fa98c180c58c20244 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/57964a5710252bc82fe22d9fa98c180c58c20244 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/815be99d934e3292906536275f2b8d5131cdf52c Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/815be99d934e3292906536275f2b8d5131cdf52c Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/bfee93c9a6c395f9aa62268f1cedf64999844926 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/bfee93c9a6c395f9aa62268f1cedf64999844926 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/c8686c014b5e872ba7e334f33ca553f14446fc29 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/c8686c014b5e872ba7e334f33ca553f14446fc29 Types: Patch Added Reference Type CVE: https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html Types: Mailing List -
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/14d2cc21ca622310babf373e3a8f0b40acfe8265 Added Reference https://git.kernel.org/stable/c/39cdb68c64d84e71a4a717000b6e5de208ee60cc Added Reference https://git.kernel.org/stable/c/57964a5710252bc82fe22d9fa98c180c58c20244 Added Reference https://git.kernel.org/stable/c/815be99d934e3292906536275f2b8d5131cdf52c Added Reference https://git.kernel.org/stable/c/bfee93c9a6c395f9aa62268f1cedf64999844926 Added Reference https://git.kernel.org/stable/c/c8686c014b5e872ba7e334f33ca553f14446fc29 Added Reference https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Nov. 04, 2024
Action Type Old Value New Value Removed Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Oct. 29, 2024
Action Type Old Value New Value Added CVSS V3.1 CISA-ADP AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 27, 2024
Action Type Old Value New Value Added Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html [No types assigned] -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Apr. 13, 2024
Action Type Old Value New Value Added Reference kernel.org https://git.kernel.org/stable/c/c8686c014b5e872ba7e334f33ca553f14446fc29 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/815be99d934e3292906536275f2b8d5131cdf52c [No types assigned] -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Mar. 02, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: vt: fix memory overlapping when deleting chars in the buffer A memory overlapping copy occurs when deleting a long line. This memory overlapping copy can cause data corruption when scr_memcpyw is optimized to memcpy because memcpy does not ensure its behavior if the destination buffer overlaps with the source buffer. The line buffer is not always broken, because the memcpy utilizes the hardware acceleration, whose result is not deterministic. Fix this problem by using replacing the scr_memcpyw with scr_memmovew. Added Reference Linux https://git.kernel.org/stable/c/bfee93c9a6c395f9aa62268f1cedf64999844926 [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/57964a5710252bc82fe22d9fa98c180c58c20244 [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/14d2cc21ca622310babf373e3a8f0b40acfe8265 [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/39cdb68c64d84e71a4a717000b6e5de208ee60cc [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-2022-48627 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-2022-48627
weaknesses.