Ubuntu.comUB:CVE-2020-27825CVE-2020-27825
5.4 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:P/I:N/A:C
5.7 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H
0.0004 Low
EPSS
Percentile
5.1%
A use-after-free flaw was found in kernel/trace/ring_buffer.c in Linux
kernel (before 5.10-rc1). There was a race problem in trace_open and resize
of cpu buffer running parallely on different cpus, may cause a denial of
service problem (DOS). This flaw could even allow a local attacker with
special user privilege to a kernel information leak threat.
References
github.com/torvalds/linux/commit/bbeb97464eefc65f506084fd9f18f21653e01137#diff-446a57a3a8781d7d3fb410eb7162dd2002dd363bf1ea936c4fd10397660033e0
launchpad.net/bugs/cve/CVE-2020-27825
nvd.nist.gov/vuln/detail/CVE-2020-27825
security-tracker.debian.org/tracker/CVE-2020-27825
www.cve.org/CVERecord?id=CVE-2020-27825
www.openwall.com/lists/oss-security/2020/12/11/1
Related
5.4 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:P/I:N/A:C
5.7 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H
0.0004 Low
EPSS
Percentile
5.1%