CVE-2020-29661
HIGH 7.8EPSS 1.1%
A locking issue was discovered in the tty subsystem of the Linux kernel through 5.9.13. drivers/tty/tty_jobctrl.c allows a use-after-free attack against TIOCSPGRP, aka CID-54ffccbf053b.
- CVSS v3.1 NVD
- 7.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS v2.0 NVD
- 7.2 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C - EPSS
- 1.12% chance of exploitation in the next 30 days, 66th percentile
- Published
- 2020-12-09
- Updated
- 2024-08-04
Proof-of-concept exploits (1)
- wojkos9/arm-CVE-2020-296611★ · 2024-09-02
Security advisories
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=54ffccbf053…
- http://packetstormsecurity.com/files/160681/Linux-TIOCSPGRP-Broken-Locking.html
- http://packetstormsecurity.com/files/164950/Kernel-Live-Patch-Security-Notice-LSN-0082-1…
- http://www.openwall.com/lists/oss-security/2020/12/10/1
- https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html
- https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html
- https://security.netapp.com/advisory/ntap-20210122-0001
- https://www.debian.org/security/2021/dsa-4843
- https://www.oracle.com/security-alerts/cpuoct2021.html