CVE-2023-52669
In the Linux kernel, the following vulnerability has been resolved: crypto: s390/aes - Fix buffer overread in CTR mode When processing the last block, the s390 ctr code will always read a whole block, even if there isn't a whole block of data left.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.68%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: crypto: s390/aes - Fix buffer overread in CTR mode When processing the last block, the s390 ctr code will always read a whole block, even if there isn't a whole block of data left. Fix this by using the actual length left and copy it into a buffer first for processing.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.68% probability · 51th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- linux/linux kernel · debian/debian linux
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/a7f580cdb42ec3d53bbb7c4e4335a98423703285Patch
- https://git.kernel.org/stable/c/cd51e26a3b89706beec64f2d8296cfb1c34e0c79Patch
- https://git.kernel.org/stable/c/d07f951903fa9922c375b8ab1ce81b18a0034e3bPatch
- https://git.kernel.org/stable/c/d68ac38895e84446848b7647ab9458d54cacba3ePatch
- https://git.kernel.org/stable/c/dbc9a791a70ea47be9f2acf251700fe254a2ab23Patch
- https://git.kernel.org/stable/c/e78f1a43e72daf77705ad5b9946de66fc708b874Patch
- https://git.kernel.org/stable/c/a7f580cdb42ec3d53bbb7c4e4335a98423703285Patch
- https://git.kernel.org/stable/c/cd51e26a3b89706beec64f2d8296cfb1c34e0c79Patch
- https://git.kernel.org/stable/c/d07f951903fa9922c375b8ab1ce81b18a0034e3bPatch
- https://git.kernel.org/stable/c/d68ac38895e84446848b7647ab9458d54cacba3ePatch
- https://git.kernel.org/stable/c/dbc9a791a70ea47be9f2acf251700fe254a2ab23Patch
- https://git.kernel.org/stable/c/e78f1a43e72daf77705ad5b9946de66fc708b874Patch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.