Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 81732c3b2fede049a692e58a7ceabb6d18ffb18c before c8686c014b5e872ba7e334f33ca553f14446fc29; affected 81732c3b2fede049a692e58a7ceabb6d18ffb18c before 815be99d934e3292906536275f2b8d5131cdf52c; affected 81732c3b2fede049a692e58a7ceabb6d18ffb18c before bfee93c9a6c395f9aa62268f1cedf64999844926; affected 81732c3b2fede049a692e58a7ceabb6d18ffb18c before 57964a5710252bc82fe22d9fa98c180c58c20244; affected 81732c3b2fede049a692e58a7ceabb6d18ffb18c before 14d2cc21ca622310babf373e3a8f0b40acfe8265; affected 81732c3b2fede049a692e58a7ceabb6d18ffb18c before 39cdb68c64d84e71a4a717000b6e5de208ee60cc |
| Linux / Linux | affected 3.7; unaffected 0 before 3.7; unaffected 4.19.312 through 4.19.*; unaffected 5.4.274 through 5.4.*; unaffected 5.10.132 through 5.10.*; unaffected 5.15.56 through 5.15.*; unaffected 5.18.13 through 5.18.*; unaffected 5.19 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/c8686c014b5e872ba7e334f33ca553f14446fc29
- https://git.kernel.org/stable/c/815be99d934e3292906536275f2b8d5131cdf52c
- https://git.kernel.org/stable/c/bfee93c9a6c395f9aa62268f1cedf64999844926
- https://git.kernel.org/stable/c/57964a5710252bc82fe22d9fa98c180c58c20244
- https://git.kernel.org/stable/c/14d2cc21ca622310babf373e3a8f0b40acfe8265
- https://git.kernel.org/stable/c/39cdb68c64d84e71a4a717000b6e5de208ee60cc
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
- https://git.kernel.org/stable/c/c8686c014b5e872ba7e334f33ca553f14446fc29
- https://git.kernel.org/stable/c/815be99d934e3292906536275f2b8d5131cdf52c
- https://git.kernel.org/stable/c/bfee93c9a6c395f9aa62268f1cedf64999844926
- https://git.kernel.org/stable/c/57964a5710252bc82fe22d9fa98c180c58c20244
- https://git.kernel.org/stable/c/14d2cc21ca622310babf373e3a8f0b40acfe8265
- https://git.kernel.org/stable/c/39cdb68c64d84e71a4a717000b6e5de208ee60cc
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html