DEBIAN-CVE-2023-54039
- Source
- https://security-tracker.debian.org/tracker/CVE-2023-54039
- Import Source
- https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-54039.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2023-54039
- Upstream
- Published
- 2025-12-24T11:15:56.890Z
- Modified
- 2025-12-25T11:20:18.944416Z
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved: can: j1939: j1939tptxdatnew(): fix out-of-bounds memory access In the j1939tptxdatnew() function, an out-of-bounds memory access could occur during the memcpy() operation if the size of skb->cb is larger than the size of struct j1939skbuffcb. This is because the memcpy() operation uses the size of skb->cb, leading to a read beyond the struct j1939skbuffcb. Updated the memcpy() operation to use the size of struct j1939skbuffcb instead of the size of skb->cb. This ensures that the memcpy() operation only reads the memory within the bounds of struct j1939skbuffcb, preventing out-of-bounds memory access. Additionally, add a BUILDBUGON() to check that the size of skb->cb is greater than or equal to the size of struct j1939skbuffcb. This ensures that the skb->cb buffer is large enough to hold the j1939skbuffcb structure. [mkl: rephrase commit message]
- References
Affected packages
Debian:11 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed5.10.178-1
Affected versions
5.*
Debian:12 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:14 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source