CVE-2024-0340: Kernel: information disclosure in vhost/vhost.c:vhost_new_msg()
First published: Tue Jan 09 2024(Updated: )
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.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <6.4 | 6.4 |
| Linux Linux kernel | <6.4 | |
| Linux Linux kernel | =6.4-rc1 | |
| Linux Linux kernel | =6.4-rc2 | |
| Linux Linux kernel | =6.4-rc3 | |
| Linux Linux kernel | =6.4-rc4 | |
| Linux Linux kernel | =6.4-rc5 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.106-3 6.1.112-1 6.11.4-1 6.11.5-1 |
Remedy
https://lore.kernel.org/lkml/5kn47peabxjrptkqa6dwtyus35ahf4pcj4qm4pumse33kxqpjw@mec4se5relrc/T/
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Reference Links
- https://lore.kernel.org/lkml/5kn47peabxjrptkqa6dwtyus35ahf4pcj4qm4pumse33kxqpjw@mec4se5relrc/T/
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2258356
- https://access.redhat.com/errata/RHSA-2024:3618
- https://access.redhat.com/errata/RHSA-2024:3627
- https://bugzilla.redhat.com/show_bug.cgi?id=2257406
- https://access.redhat.com/security/cve/CVE-2024-0340
- https://launchpad.net/bugs/cve/CVE-2024-0340
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-0340
- https://nvd.nist.gov/vuln/detail/CVE-2024-0340
- https://security-tracker.debian.org/tracker/CVE-2024-0340
- https://ubuntu.com/security/CVE-2024-0340
- https://git.kernel.org/linus/4d8df0f5f79f747d75a7d356d9b9ea40a4e4c8a9
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