Ubuntu.comUB:CVE-2021-28951CVE-2021-28951
4.9 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
0.0004 Low
EPSS
Percentile
14.4%
An issue was discovered in fs/io_uring.c in the Linux kernel through
5.11.8. It allows attackers to cause a denial of service (deadlock) because
exit may be waiting to park a SQPOLL thread, but concurrently that SQPOLL
thread is waiting for a signal to start, aka CID-3ebba796fa25.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 20.04 | noarch | linux-oem-5.10 | < 5.10.0-1025.26 | UNKNOWN |
References
git.kernel.org/linus/3ebba796fa251d042be42b929a2d916ee5c34a49
git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=3ebba796fa251d042be42b929a2d916ee5c34a49
launchpad.net/bugs/cve/CVE-2021-28951
nvd.nist.gov/vuln/detail/CVE-2021-28951
security-tracker.debian.org/tracker/CVE-2021-28951
ubuntu.com/security/notices/USN-4948-1
www.cve.org/CVERecord?id=CVE-2021-28951
Related
4.9 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
0.0004 Low
EPSS
Percentile
14.4%