CVE-2021-47358CWE-416

CVE-2021-47358

High · published May 21, 2024

CVSS v3.1
7.8
EPSS
0%
Percentile
14.8
In the wild
Unconfirmed
What it is

In the Linux kernel, the following vulnerability has been resolved:

staging: greybus: uart: fix tty use after free

User space can hold a tty open indefinitely and tty drivers must not

release the underlying structures until the last user is gone.

Switch to using the tty-port reference counter to manage the life time

of the greybus tty state to avoid use after free after a disconnect.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00244 · 14.8th percentile
Weakness
CWE-416 · Use After Free
Published
2024-05-21T19:15Z
Affected products (8)
ProductVersionsFixed in
linux/linux_kernel≥ 4.9, < 4.9.2854.9.285
linux/linux_kernel≥ 4.10, < 4.14.2494.14.249
linux/linux_kernel≥ 4.15, < 4.19.2094.19.209
linux/linux_kernel≥ 4.20, < 5.4.1505.4.150
linux/linux_kernel≥ 5.5, < 5.10.705.10.70
linux/linux_kernel≥ 5.11, < 5.14.95.14.9
linux/linux_kernelall versions—
linux/linux_kernelall versions—
References (14)
https://git.kernel.org/stable/c/4dc56951a8d9d61d364d346c61a5f1d70b4f5e14 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/64062fcaca8872f063ec9da011e7bf30470be33f · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/92b67aaafb7c449db9f0c3dcabc0ff967cb3a42d · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/92dc0b1f46e12cfabd28d709bb34f7a39431b44f · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9872ff6fdce8b229f01993b611b5d1719cb70ff1 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a5cfd51f6348e8fd7531461366946039c29c7e69 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b9e697e60ce9890e9258a73eb061288e7d68e5e6 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4dc56951a8d9d61d364d346c61a5f1d70b4f5e14 · af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/64062fcaca8872f063ec9da011e7bf30470be33f · af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/92b67aaafb7c449db9f0c3dcabc0ff967cb3a42d · af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/92dc0b1f46e12cfabd28d709bb34f7a39431b44f · af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9872ff6fdce8b229f01993b611b5d1719cb70ff1 · af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a5cfd51f6348e8fd7531461366946039c29c7e69 · af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b9e697e60ce9890e9258a73eb061288e7d68e5e6 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 21 MAY 14:44Z
    staging: greybus: uart: fix tty use after free
    cvelistv5