Ubuntu.comUB:CVE-2018-12714CVE-2018-12714
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
0.006 Low
EPSS
Percentile
78.8%
An issue was discovered in the Linux kernel through 4.17.2. The filter
parsing in kernel/trace/trace_events_filter.c could be called with no
filter, which is an N=0 case when it expected at least one line to have
been read, thus making the N-1 index invalid. This allows attackers to
cause a denial of service (slab out-of-bounds write) or possibly have
unspecified other impact via crafted perf_event_open and mmap system calls.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | linux-azure-edge | < any | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-hwe-edge | < 4.18.0-8.9~18.04.1 | UNKNOWN |
References
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=81f9c4e4177d31ced6f52a89bb70e93bfb77ca03
bugzilla.kernel.org/show_bug.cgi?id=200019
github.com/lcytxw/bug_repro/tree/master/bug_200019
github.com/torvalds/linux/commit/81f9c4e4177d31ced6f52a89bb70e93bfb77ca03
launchpad.net/bugs/cve/CVE-2018-12714
nvd.nist.gov/vuln/detail/CVE-2018-12714
security-tracker.debian.org/tracker/CVE-2018-12714
www.cve.org/CVERecord?id=CVE-2018-12714
Related
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
0.006 Low
EPSS
Percentile
78.8%