Description
A vulnerability was found in vhost_new_msg in drivers/vhost/vhost.c in the Linux kernel, which does not properly initialize memory in messages passed between virtual guests and the host operating system in the vhost/vhost.c:vhost_new_msg() function. This issue can allow local privileged users to read some kernel memory contents when reading from the /dev/vhost-net device file.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
kernel
Default version status: unaffected
0 to < 6.4-rc6affected
Red Hat Red Hat Enterprise Linux 8
Default version status: affected
0:4.18.0-553.5.1.rt7.346.el8_10 to < *unaffected
Red Hat Red Hat Enterprise Linux 8
Default version status: affected
0:4.18.0-553.5.1.el8_10 to < *unaffected
Red Hat Red Hat Enterprise Linux 9
Default version status: affected
0:5.14.0-503.11.1.el9_5 to < *unaffected
Red Hat Red Hat Enterprise Linux 9
Default version status: affected
0:5.14.0-503.11.1.el9_5 to < *unaffected
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support
Default version status: affected
0:5.14.0-427.68.1.el9_4 to < *unaffected
Red Hat Red Hat Enterprise Linux 6
Default version status: affected
Red Hat Red Hat Enterprise Linux 7
Default version status: affected
Red Hat Red Hat Enterprise Linux 7
Default version status: affected
References
- https://access.redhat.com/errata/RHSA-2024:3618 ↗
- https://access.redhat.com/errata/RHSA-2024:3627 ↗
- https://access.redhat.com/errata/RHSA-2024:9315 ↗
- https://access.redhat.com/errata/RHSA-2025:7526 ↗
- https://access.redhat.com/security/cve/CVE-2024-0340 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=2257406 ↗
- https://lore.kernel.org/lkml/5kn47peabxjrptkqa6dwtyus35ahf4pcj4qm4pumse33kxqpjw@mec4se5relrc/T/ ↗
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html ↗
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html ↗