This bug was fixed in the package linux - 5.8.0-43.49
---------------
linux (5.8.0-43.49) groovy; urgency=medium
* groovy/linux: 5.8.0-43.49 -proposed tracker (LP: #1914689)
* Packaging resync (LP: #1786013)
- update dkms package versions
* Exploitable vulnerabilities in AF_VSOCK implementation (LP: #1914668)
- vsock: fix the race conditions in multi-transport support
-- Khalid Elmously <khalid.elmou...@canonical.com> Thu, 04 Feb 2021
21:41:23 -0500
** Changed in: linux-riscv (Ubuntu)
Status: Fix Committed => Fix Released
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2020-16120
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https://bugs.launchpad.net/bugs/1914668
Title:
Exploitable vulnerabilities in AF_VSOCK implementation
Status in linux package in Ubuntu:
Fix Committed
Status in linux-hwe-5.8 package in Ubuntu:
New
Status in linux-oem-5.6 package in Ubuntu:
Fix Committed
Status in linux-riscv package in Ubuntu:
Fix Released
Status in linux-hwe-5.8 source package in Focal:
Fix Released
Status in linux source package in Groovy:
Fix Released
Status in linux source package in Hirsute:
Fix Committed
Bug description:
https://www.openwall.com/lists/oss-security/2021/02/04/5
The following mainline patch is required for all kernels >= v5.8:
{focal hwe-5.8, groovy, hirsute}:
[linux] c518adafa39f vsock: fix the race conditions in multi-transport
support
or [linux-5.10-y] 55d900415b81 vsock: fix the race conditions in
multi-transport support
[Impact]
* Patches an exploitable vulnerability.
[Test Case]
* See disclosure article.
[Regression Potential]
* Low: straightforward race condition fix; upstream cherry-pick.
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