CVE-2024-36934
In the Linux kernel, the following vulnerability has been resolved: bna: ensure the copied buf is NUL terminated Currently, we allocate a nbytes-sized kernel buffer and copy nbytes from userspace to that buffer.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.29%). 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: bna: ensure the copied buf is NUL terminated Currently, we allocate a nbytes-sized kernel buffer and copy nbytes from userspace to that buffer. Later, we use sscanf on this buffer but we don't ensure that the string is terminated inside the buffer, this can lead to OOB read when using sscanf. Fix this issue by using memdup_user_nul instead of memdup_user.
- 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
- 0.29% probability · 22th 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/06cb37e2ba6441888f24566a997481d4197b4e32Patch
- https://git.kernel.org/stable/c/0f560240b4cc25d3de527deb257cdf072c0102a9Patch
- https://git.kernel.org/stable/c/1518b2b498a0109eb6b15755169d3b6607356b35Patch
- https://git.kernel.org/stable/c/6f0f19b79c085cc891c418b768f26f7004bd51a4Patch
- https://git.kernel.org/stable/c/80578ec10335bc15ac35fd1703c22aab34e39fddPatch
- https://git.kernel.org/stable/c/8c34096c7fdf272fd4c0c37fe411cd2e3ed0ee9fPatch
- https://git.kernel.org/stable/c/bd502ba81cd1d515deddad7dbc6b812b14b97147Patch
- https://git.kernel.org/stable/c/e19478763154674c084defc62ae0d64d79657f91Patch
- https://git.kernel.org/stable/c/06cb37e2ba6441888f24566a997481d4197b4e32Patch
- https://git.kernel.org/stable/c/0f560240b4cc25d3de527deb257cdf072c0102a9Patch
- https://git.kernel.org/stable/c/1518b2b498a0109eb6b15755169d3b6607356b35Patch
- https://git.kernel.org/stable/c/6f0f19b79c085cc891c418b768f26f7004bd51a4Patch
- https://git.kernel.org/stable/c/80578ec10335bc15ac35fd1703c22aab34e39fddPatch
- https://git.kernel.org/stable/c/8c34096c7fdf272fd4c0c37fe411cd2e3ed0ee9fPatch
- https://git.kernel.org/stable/c/bd502ba81cd1d515deddad7dbc6b812b14b97147Patch
- https://git.kernel.org/stable/c/e19478763154674c084defc62ae0d64d79657f91Patch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00019.htmlThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.htmlThird Party Advisory
- https://security.netapp.com/advisory/ntap-20240912-0007/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.