CVE-2021-42327

Name
CVE-2021-42327
Description
dp_link_settings_write in drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c in the Linux kernel through 5.14.14 allows a heap-based buffer overflow by an attacker who can write a string to the AMD GPU display drivers debug filesystem. There are no checks on size within parse_write_buffer_into_params when it uses the size of copy_from_user to copy a userspace buffer into a 40-byte heap buffer.
NVD Severity
medium
Other trackers
Mailing lists
Exploits
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
MISC https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
MISC https://www.mail-archive.com/amd-gfx@lists.freedesktop.org/msg69080.html
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RDDEW4APTYKJK365HC2JZIVXYUV7ZRN7/
Third Party Advisory https://security.netapp.com/advisory/ntap-20211118-0005/

Match rules

CPE URI Source package Min version Max version
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* linux_kernel >= None <= 5.14.14

Vulnerable and fixed packages

Source package Branch Version Maintainer Status