CVE-2024-36931
In the Linux kernel, the following vulnerability has been resolved: s390/cio: Ensure the copied buf is NUL terminated Currently, we allocate a lbuf-sized kernel buffer and copy lbuf from userspace to that buffer.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.23%). 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: s390/cio: Ensure the copied buf is NUL terminated Currently, we allocate a lbuf-sized kernel buffer and copy lbuf from userspace to that buffer. Later, we use scanf on this buffer but we don't ensure that the string is terminated inside the buffer, this can lead to OOB read when using scanf. Fix this issue by using memdup_user_nul instead.
- CVSS 3.1
- 7.1 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- EPSS
- 0.23% probability · 14th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/06759ebaf75c19c87b2453a5e130e9e61e9b5d65Patch
- https://git.kernel.org/stable/c/10452edd175fcc4fd0f5ac782ed2a002e3e5d65cPatch
- https://git.kernel.org/stable/c/84b38f48836662c4bfae646c014f4e981e16a2b2Patch
- https://git.kernel.org/stable/c/c9d48ce163305595ae20aee27774192476d5e6a5Patch
- https://git.kernel.org/stable/c/da7c622cddd4fe36be69ca61e8c42e43cde94784Patch
- https://git.kernel.org/stable/c/06759ebaf75c19c87b2453a5e130e9e61e9b5d65Patch
- https://git.kernel.org/stable/c/10452edd175fcc4fd0f5ac782ed2a002e3e5d65cPatch
- https://git.kernel.org/stable/c/84b38f48836662c4bfae646c014f4e981e16a2b2Patch
- https://git.kernel.org/stable/c/c9d48ce163305595ae20aee27774192476d5e6a5Patch
- https://git.kernel.org/stable/c/da7c622cddd4fe36be69ca61e8c42e43cde94784Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.