CVE-2020-29660
medium
CVSS v3
—
CVSS v2
—
VIR risk
5.5
Description
A locking inconsistency issue was discovered in the tty subsystem of the Linux kernel through 5.9.13. drivers/tty/tty_io.c and drivers/tty/tty_jobctrl.c may allow a read-after-free attack against TIOCGSID, aka CID-c8bcd9c5be24.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: alma — https://errata.almalinux.org/8/ALSA-2021-4356.html
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-29660
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2020-29660.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 5.9.14.arch1-1 | |
| sles | affected | | |
| debian | bookworm | fixed | 5.9.15-1 |
| debian | bullseye | fixed | 5.9.15-1 |
| debian | forky | fixed | 5.9.15-1 |
| debian | sid | fixed | 5.9.15-1 |
| debian | trixie | fixed | 5.9.15-1 |
| almalinux | 8 | fixed | kernel-tools-libs-devel-4.18.0-348.el8.x86_64.rpm |
References
Verify integrity in audit chain (admin only). AS-IS.