CVEvulnerability
CVE-2019-9213
5.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2019-03-05
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 4.9 MEDIUM — AV:L/AC:L/Au:N/C:N/I:N/A:C
- Weaknesses
- CWE-476
Description
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.
Affected configurations
• linux linux kernel (>= 4.9 < 4.9.162)
• linux linux kernel (>= 4.14 < 4.14.105)
• linux linux kernel (>= 4.19 < 4.19.27)
• linux linux kernel (>= 4.20 < 4.20.14)
• debian debian linux 8.0
• redhat enterprise linux 7.0
• redhat enterprise linux 8.0
• opensuse leap 15.0
• opensuse leap 42.3
• canonical ubuntu linux 12.04
• canonical ubuntu linux 14.04
• canonical ubuntu linux 16.04
• canonical ubuntu linux 18.10
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0a1d52994d440e21def1c2174932410b4f2a98a1 Patch, Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00045.html Mailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00052.html Mailing List, Third Party Advisory
- http://packetstormsecurity.com/files/156053/Reliable-Datagram-Sockets-RDS-rds_atomic_free_op-Privilege-Escalation.html Exploit, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/107296 Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2019:0831 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
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1792 Exploit, Mailing List, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.105 Mailing List, Patch, Vendor Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.27 Mailing List, Patch, Vendor Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.14 Mailing List, Patch, Vendor Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.162 Mailing List, Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/0a1d52994d440e21def1c2174932410b4f2a98a1 Mailing List, Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html Mailing List, Third Party Advisory
- https://usn.ubuntu.com/3930-1/ Third Party Advisory
- https://usn.ubuntu.com/3930-2/ Third Party Advisory
- https://usn.ubuntu.com/3931-1/ Third Party Advisory
- https://usn.ubuntu.com/3931-2/ Third Party Advisory
- https://usn.ubuntu.com/3932-1/ Third Party Advisory
- https://usn.ubuntu.com/3932-2/ Third Party Advisory
- https://usn.ubuntu.com/3933-1/ Third Party Advisory
- https://usn.ubuntu.com/3933-2/ Third Party Advisory
- https://www.exploit-db.com/exploits/46502/ Exploit, Third Party Advisory, VDB Entry
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0a1d52994d440e21def1c2174932410b4f2a98a1 Patch, Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00045.html Mailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00052.html Mailing List, Third Party Advisory
- http://packetstormsecurity.com/files/156053/Reliable-Datagram-Sockets-RDS-rds_atomic_free_op-Privilege-Escalation.html Exploit, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/107296 Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2019:0831 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
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1792 Exploit, Mailing List, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.105 Mailing List, Patch, Vendor Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.27 Mailing List, Patch, Vendor Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.14 Mailing List, Patch, Vendor Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.162 Mailing List, Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/0a1d52994d440e21def1c2174932410b4f2a98a1 Mailing List, Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html Mailing List, Third Party Advisory
- https://usn.ubuntu.com/3930-1/ Third Party Advisory
- https://usn.ubuntu.com/3930-2/ Third Party Advisory
- https://usn.ubuntu.com/3931-1/ Third Party Advisory
- https://usn.ubuntu.com/3931-2/ Third Party Advisory
- https://usn.ubuntu.com/3932-1/ Third Party Advisory
- https://usn.ubuntu.com/3932-2/ Third Party Advisory
- https://usn.ubuntu.com/3933-1/ Third Party Advisory
- https://usn.ubuntu.com/3933-2/ Third Party Advisory
- https://www.exploit-db.com/exploits/46502/ Exploit, Third Party Advisory, VDB Entry