CVE-2020-27786
published 2020-12-11CVE-2020-27786: A flaw was found in the Linux kernel’s implementation of MIDI, where an attacker with a local account and the permissions to issue ioctl commands to midi…
PriorityP345high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
1.67%
74.1th percentile
A flaw was found in the Linux kernel’s implementation of MIDI, where an attacker with a local account and the permissions to issue ioctl commands to midi devices could trigger a use-after-free issue. A write to this specific memory while freed and before use causes the flow of execution to change and possibly allow for memory corruption or privilege escalation. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Affected
18 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.6.14-1 (bookworm) | linux 5.6.14-1 (bookworm) |
| linux | linux_kernel | < 4.4.224 | 4.4.224 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.6.14-1 | 5.6.14-1 |
| linux | linux_kernel | >= 0 < 5.6.14-1 | 5.6.14-1 |
| linux | linux_kernel | >= 0 < 5.6.14-1 | 5.6.14-1 |
| linux | linux_kernel | >= 0 < 5.6.14-1 | 5.6.14-1 |
| linux | linux_kernel | >= 4.10 < 4.14.181 | 4.14.181 |
| linux | linux_kernel | >= 4.15 < 4.19.124 | 4.19.124 |
| linux | linux_kernel | >= 4.20 < 5.4.42 | 5.4.42 |
| linux | linux_kernel | >= 4.5 < 4.9.224 | 4.9.224 |
| linux | linux_kernel | >= 5.5 < 5.6.14 | 5.6.14 |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_mrg | — | — |
| redhat | openshift_container_platform | — | — |
| redhat | openshift_container_platform | — | — |
| redhat | openshift_container_platform | — | — |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.2HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
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GHSA
GHSA-3mfq-6299-p3w3: A flaw was found in the Linux kernels implementation of MIDI (kernel 5
ghsa_unreviewed·2022-05-24
CVE-2020-27786 [HIGH] CWE-416 GHSA-3mfq-6299-p3w3: A flaw was found in the Linux kernels implementation of MIDI (kernel 5
A flaw was found in the Linux kernels implementation of MIDI (kernel 5.7-rc6), where an attacker with a local account and the permissions to issue an ioctl commands to midi devices, could trigger a use-after-free. A write to this specific memory while freed and before use could cause the flow of execution to change and possibly allow for memory corruption or privilege escalation.
OSV
CVE-2020-27786: In several functions of rawmidi
osv·2021-05-01
CVE-2020-27786 CVE-2020-27786: In several functions of rawmidi
In several functions of rawmidi.c, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
OSV
CVE-2020-27786: A flaw was found in the Linux kernel’s implementation of MIDI, where an attacker with a local account and the permissions to issue ioctl commands to m
osv·2020-12-11·CVSS 7.8
CVE-2020-27786 [HIGH] CVE-2020-27786: A flaw was found in the Linux kernel’s implementation of MIDI, where an attacker with a local account and the permissions to issue ioctl commands to m
A flaw was found in the Linux kernel’s implementation of MIDI, where an attacker with a local account and the permissions to issue ioctl commands to midi devices could trigger a use-after-free issue. A write to this specific memory while freed and before use causes the flow of execution to change and possibly allow for memory corruption or privilege escalation. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Red Hat
kernel: use-after-free in kernel midi subsystem
vendor_redhat·2020-12-02·CVSS 7.8
CVE-2020-27786 [HIGH] CWE-416 kernel: use-after-free in kernel midi subsystem
kernel: use-after-free in kernel midi subsystem
A flaw was found in the Linux kernel’s implementation of MIDI, where an attacker with a local account and the permissions to issue ioctl commands to midi devices could trigger a use-after-free issue. A write to this specific memory while freed and before use causes the flow of execution to change and possibly allow for memory corruption or privilege escalation. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
A flaw was found in the Linux kernel’s implementation of MIDI, where an attacker with a local account and the permissions to issue ioctl commands to midi devices could trigger a use-after-free issue. A write to this specific memory while freed and before use causes the flow of
Debian
CVE-2020-27786: linux - A flaw was found in the Linux kernel’s implementation of MIDI, where an attacker...
vendor_debian·2020·CVSS 7.8
CVE-2020-27786 [HIGH] CVE-2020-27786: linux - A flaw was found in the Linux kernel’s implementation of MIDI, where an attacker...
A flaw was found in the Linux kernel’s implementation of MIDI, where an attacker with a local account and the permissions to issue ioctl commands to midi devices could trigger a use-after-free issue. A write to this specific memory while freed and before use causes the flow of execution to change and possibly allow for memory corruption or privilege escalation. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Scope: local
bookworm: resolved (fixed in 5.6.14-1)
bullseye: resolved (fixed in 5.6.14-1)
forky: resolved (fixed in 5.6.14-1)
sid: resolved (fixed in 5.6.14-1)
trixie: resolved (fixed in 5.6.14-1)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
http://www.openwall.com/lists/oss-security/2020/12/03/1https://bugzilla.redhat.com/show_bug.cgi?id=1900933https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c1f6e3c818dd734c30f6a7eeebf232ba2cf3181dhttps://security.netapp.com/advisory/ntap-20210122-0002/http://www.openwall.com/lists/oss-security/2020/12/03/1https://bugzilla.redhat.com/show_bug.cgi?id=1900933https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c1f6e3c818dd734c30f6a7eeebf232ba2cf3181dhttps://security.netapp.com/advisory/ntap-20210122-0002/
2020-12-11
Published