CVE-2019-9213
MEDIUM
5.5
CVSS Score
Published: March 5, 2019 at 10:00 PM UTC
Updated: June 17, 2026 at 02:43 AM UTC
5 products affected across 5 vendorsLinux KernelDebian LinuxUbuntu Linux
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Severity
MEDIUM5.5
Exploit prediction
EPSS 6%
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
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Ubuntu Linux· Canonicalrubygems
95%Debian Linux· Debiandrupal
95%4.14 ≤ v < 4.14.1054.19 ≤ v < 4.19.274.20 ≤ v < 4.20.144.9 ≤ v < 4.9.162
Affected range stops below 4.14.105, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.19.27, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.20.14, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.9.162, so it looks safe — our inference, not a vendor statement
Leap· openSUSEdrupal
95%Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0a1d52994d440e21def1c2174932410b4f2a98a1
- http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00045.html
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00052.html
- https://access.redhat.com/errata/RHSA-2019:0831
- https://access.redhat.com/errata/RHSA-2019:1479
References (26)
x_refsource_MISCPatchVendor Advisory
Source: [email protected]
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0a1d52994d440e21def1c2174932410b4f2a98a1Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00045.htmlVendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00052.htmlx_refsource_MISCExploitThird Party AdvisoryVDB Entry
Source: [email protected]
http://packetstormsecurity.com/files/156053/Reliable-Datagram-Sockets-RDS-rds_atomic_free_op-Privilege-Escalation.htmlVDB Entryx_refsource_BIDThird Party Advisory
Source: [email protected]
http://www.securityfocus.com/bid/107296Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2019:0831Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2019:1479Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2019:1480CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-476
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