CVSS 3.1
7.8 highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HCVE-2020-29661
High (7.8). EPSS 1.1% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 1.1% chance of exploitation in the next 30 days; higher than 66% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-416, CWE-667
- Published
- Modified
- Record from
- the NVD, synced
Affected
- broadcom:fabric_operating_system
- debian:debian_linux
- fedoraproject:fedora
- linux:linux_kernel
- netapp:8300_firmware
- netapp:8700_firmware
- netapp:a400_firmware
- netapp:a700s_firmware
- netapp:active_iq_unified_manager
- netapp:h410c_firmware
- netapp:solidfire_baseboard_management_controller_firmware
- oracle:tekelec_platform_distribution
References
- http://packetstormsecurity.com/files/160681/Linux-TIOCSPGRP-Broken-Locking.html
- http://packetstormsecurity.com/files/164950/Kernel-Live-Patch-Security-Notice-LSN-0082-1.html
- http://www.openwall.com/lists/oss-security/2020/12/10/1
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=54ffccbf053b5b6ca4f6e45094b942fab92a25fc
- https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html