National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-7492 Detail

Current Description

A NULL pointer dereference was found in the net/rds/rdma.c __rds_rdma_map() function in the Linux kernel before 4.14.7 allowing local attackers to cause a system panic and a denial-of-service, related to RDS_GET_MR and RDS_GET_MR_FOR_DEST.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 5.5 MEDIUM
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H (V3 legend)
Impact Score: 3.6
Exploitability Score: 1.8


Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 4.9 MEDIUM
Vector: (AV:L/AC:L/Au:N/C:N/I:N/A:C) (V2 legend)
Impact Subscore: 6.9
Exploitability Subscore: 3.9


Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f3069c6d33f6ae63a1668737bc78aaaa51bff7ca Patch Vendor Advisory
http://www.securityfocus.com/bid/103185 Third Party Advisory VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1527393 Issue Tracking Third Party Advisory
https://github.com/torvalds/linux/commit/f3069c6d33f6ae63a1668737bc78aaaa51bff7ca Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html Mailing List Third Party Advisory
https://patchwork.kernel.org/patch/10096441/ Patch Third Party Advisory
https://usn.ubuntu.com/3619-1/ Third Party Advisory
https://usn.ubuntu.com/3619-2/ Third Party Advisory
https://usn.ubuntu.com/3674-1/ Third Party Advisory
https://usn.ubuntu.com/3674-2/ Third Party Advisory
https://usn.ubuntu.com/3677-1/ Third Party Advisory
https://usn.ubuntu.com/3677-2/ Third Party Advisory
https://www.debian.org/security/2018/dsa-4187 Third Party Advisory
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.7 Patch Vendor Advisory
https://xorl.wordpress.com/2017/12/18/linux-kernel-rdma-null-pointer-dereference/ Exploit Patch Third Party Advisory

Technical Details

Vulnerability Type (View All)

  • NULL Pointer Dereference (CWE-476)

Known Affected Software Configurations Switch to CPE 2.3

Configuration 1 ( hide )
 cpe:/o:linux:linux_kernel
     Show Matching CPE(s)
Up to (excluding)
4.14.7

Configuration 2 ( hide )
 cpe:/o:debian:debian_linux:7.0
     Show Matching CPE(s)
 cpe:/o:debian:debian_linux:8.0
     Show Matching CPE(s)

Configuration 3 ( hide )
 cpe:/o:canonical:ubuntu_linux:12.04::~~esm~~~
     Show Matching CPE(s)
 cpe:/o:canonical:ubuntu_linux:14.04::~~lts~~~
     Show Matching CPE(s)
 cpe:/o:canonical:ubuntu_linux:16.04::~~lts~~~
     Show Matching CPE(s)
 cpe:/o:canonical:ubuntu_linux:17.10
     Show Matching CPE(s)


Change History

9 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-7492
NVD Published Date:
02/26/2018
NVD Last Modified:
03/26/2019