CVEvulnerability
CVE-2020-29661
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2020-12-09
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-416, CWE-667
Description
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.
Affected configurations
• linux linux kernel (>= 2.6.26 < 4.4.248)
• linux linux kernel (>= 4.5 < 4.9.248)
• linux linux kernel (>= 4.10 < 4.14.212)
• linux linux kernel (>= 4.15 < 4.19.163)
• linux linux kernel (>= 4.20 < 5.4.83)
• linux linux kernel (>= 5.5 < 5.9.14)
• fedoraproject fedora 32
• fedoraproject fedora 33
• debian debian linux 9.0
• debian debian linux 10.0
• netapp active iq unified manager
• broadcom fabric operating system
• netapp solidfire baseboard management controller firmware
• netapp h410c firmware
• netapp a700s firmware
• netapp 8300 firmware
• netapp 8700 firmware
• netapp a400 firmware
• oracle tekelec platform distribution (>= 7.4.0 <= 7.7.1)
Related
References
- http://packetstormsecurity.com/files/160681/Linux-TIOCSPGRP-Broken-Locking.html Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/164950/Kernel-Live-Patch-Security-Notice-LSN-0082-1.html Third Party Advisory, VDB Entry
- http://www.openwall.com/lists/oss-security/2020/12/10/1 Mailing List, Patch, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=54ffccbf053b5b6ca4f6e45094b942fab92a25fc Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BOB25SU6XUL4TNP7KB63WNZSYTIYFDPP/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MZ7OAKAEFAXQRGBZK4LYUWINCD3D2XCL/ lists.fedoraproject.org
- https://security.netapp.com/advisory/ntap-20210122-0001/ Third Party Advisory
- https://www.debian.org/security/2021/dsa-4843 Third Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2021.html Patch, Third Party Advisory
- http://packetstormsecurity.com/files/160681/Linux-TIOCSPGRP-Broken-Locking.html Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/164950/Kernel-Live-Patch-Security-Notice-LSN-0082-1.html Third Party Advisory, VDB Entry
- http://www.openwall.com/lists/oss-security/2020/12/10/1 Mailing List, Patch, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=54ffccbf053b5b6ca4f6e45094b942fab92a25fc Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BOB25SU6XUL4TNP7KB63WNZSYTIYFDPP/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MZ7OAKAEFAXQRGBZK4LYUWINCD3D2XCL/ lists.fedoraproject.org
- https://security.netapp.com/advisory/ntap-20210122-0001/ Third Party Advisory
- https://www.debian.org/security/2021/dsa-4843 Third Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2021.html Patch, Third Party Advisory