7.2 High
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.5 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
44.2%
An issue was discovered in the Linux kernel through 4.18.8. The vmacache_flush_all function in mm/vmacache.c mishandles sequence number overflows. An attacker can trigger a use-after-free (and possibly gain privileges) via certain thread creation, map, unmap, invalidation, and dereference operations.
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7a9cdebdcc17e426fb5287e4a82db1dfe86339b2
www.securityfocus.com/bid/105417
www.securityfocus.com/bid/106503
www.securitytracker.com/id/1041748
access.redhat.com/errata/RHSA-2018:3656
github.com/torvalds/linux/commit/7a9cdebdcc17e426fb5287e4a82db1dfe86339b2
lists.debian.org/debian-lts-announce/2018/10/msg00003.html
security.netapp.com/advisory/ntap-20190204-0001/
usn.ubuntu.com/3776-1/
usn.ubuntu.com/3776-2/
usn.ubuntu.com/3777-1/
usn.ubuntu.com/3777-2/
usn.ubuntu.com/3777-3/
www.debian.org/security/2018/dsa-4308
www.exploit-db.com/exploits/45497/
www.openwall.com/lists/oss-security/2018/09/18/4
7.2 High
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.5 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
44.2%