CVE-2020-29660 is a read-after-free vulnerability in the Linux kernel's tty subsystem (through version 5.9.13), specifically affecting drivers/tty/tty_io.c and drivers/tty/tty_jobctrl.c, which can be triggered via TIOCGSID. This flaw impacts various products including Broadcom, Debian, Fedora Project, Linux, and NetApp. It carries a CVSS score of 4.4 (MEDIUM), indicating a local attack vector with low complexity, requiring high privileges, and potentially leading to high confidentiality impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 5.9.13CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
32CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* | ||
33CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* | ||
9.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | ||
10.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
ctrlX Multiple Vulnerabilities
Apr 23, 2021ctrlX Multiple Vulnerabilities
Apr 23, 2021ctrlX Multiple Vulnerabilities
Apr 23, 2021ctrlX Multiple Vulnerabilities
Apr 23, 2021ctrlX Multiple Vulnerabilities
Apr 23, 2021ctrlX Multiple Vulnerabilities
Apr 23, 2021A 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.
Dec 8, 2020kernel: locking inconsistency in drivers/tty/tty_io.c and drivers/tty/tty_jobctrl.c can lead to a read-after-free
Dec 4, 2020