CVE Vulnerability

CVE-2019-9213

In the Linux kernel before 4.20.14, expand_downwards in mm/mmap.c lacks a check for the mmap minimum address, which makes it easier for attackers to exploit kernel NULL pointer dereferences on non-SMAP platforms. This is related to a capability check for the wrong task.

4.9 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 6.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

Scope

5.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/torvalds/linux/commit/0a1d52994d440e21def1c2174932410b4f2a98a1 Mailing List Patch
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.162 Mailing List Patch
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.14 Mailing List Patch
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.27 Mailing List Patch
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.105 Mailing List Patch
https://bugs.chromium.org/p/project-zero/issues/detail?id=1792 Exploit Mailing List
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0a1d52994d440e21def1c2174932410b4f2a98a1 Patch Vendor Advisory
https://www.exploit-db.com/exploits/46502/ Exploit Third Party Advisory
http://www.securityfocus.com/bid/107296 VDB Entry Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00045.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html Mailing List Third Party Advisory
https://usn.ubuntu.com/3933-2/ Third Party Advisory
https://usn.ubuntu.com/3932-2/ Third Party Advisory
https://usn.ubuntu.com/3932-1/ Third Party Advisory
https://usn.ubuntu.com/3931-2/ Third Party Advisory
https://usn.ubuntu.com/3931-1/ Third Party Advisory
https://usn.ubuntu.com/3930-2/ Third Party Advisory
https://usn.ubuntu.com/3930-1/ Third Party Advisory
https://usn.ubuntu.com/3933-1/ Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00052.html Mailing List Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0831 Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html Mailing List Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1479 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1480 Third Party Advisory
http://packetstormsecurity.com/files/156053/Reliable-Datagram-Sockets-RDS-rds_atomic_free_op-Privilege-Escalation.html Exploit Third Party Advisory
Configurations

Configuration 1

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:*:*:*:*
Information

Published : 2019-03-05 10:29

Updated : 2022-10-12 03:56

NVD link : CVE-2019-9213

Mitre link : CVE-2019-9213

Products Affected
No products.
CWE
CWE-476