CVE-2021-27365

high
Published 2021-04-06 ยท Modified 2021-04-06
CVSS v3
โ€”
CVSS v4 NEW
โ€”
not yet in upstream
VIR risk
8.0

Description

An issue was discovered in the Linux kernel through 5.11.3. Certain iSCSI data structures do not have appropriate length constraints or checks, and can exceed the PAGE_SIZE value. An unprivileged user can send a Netlink message that is associated with iSCSI, and has a length up to the maximum length of a Netlink message.

Predictions

Exploit likelihood
20%
Patch ETA
โ€”

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or โ€” if you've already worked around this in production โ€” publish your fix to the community-verified tier.

โœš Propose a mitigation on Community โ†’ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

suse SUSE Affected 1 release
VersionStatusFixed in
โ€” Affected โ€”
arch Arch Fixed 1 release
VersionStatusFixed in
โ€” Fixed 5.10.21.hardened1-1
debian Debian Fixed 5 releases
VersionStatusFixed in
trixie Fixed 5.10.24-1
sid Fixed 5.10.24-1
forky Fixed 5.10.24-1
bullseye Fixed 5.10.24-1
bookworm Fixed 5.10.24-1
redhat Red Hat Fixed 1 release
VersionStatusFixed in
8 Fixed โ€”

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.