Vulnerability Details : CVE-2018-7492
Potential exploit
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.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2018-7492
- cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-7492
0.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 21 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-7492
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.9
|
MEDIUM | AV:L/AC:L/Au:N/C:N/I:N/A:C |
3.9
|
6.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2018-7492
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-7492
-
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f3069c6d33f6ae63a1668737bc78aaaa51bff7ca
kernel/git/torvalds/linux.git - Linux kernel source treePatch;Vendor Advisory
-
http://www.securityfocus.com/bid/103185
Linux Kernel 'net/rds/rdma.c' Denial of Service VulnerabilityThird Party Advisory;VDB Entry
-
https://usn.ubuntu.com/3677-1/
USN-3677-1: Linux kernel vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=1527393
1527393 – (CVE-2018-7492) CVE-2018-7492 kernel: Null pointer dereference in net/rds/rdma.c:__rds_rdma_map() allowing local attackers to cause denial-of-serviceIssue Tracking;Third Party Advisory
-
https://usn.ubuntu.com/3677-2/
USN-3677-2: Linux kernel (HWE) vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://usn.ubuntu.com/3674-1/
USN-3674-1: Linux kernel vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://github.com/torvalds/linux/commit/f3069c6d33f6ae63a1668737bc78aaaa51bff7ca
rds: Fix NULL pointer dereference in __rds_rdma_map · torvalds/linux@f3069c6 · GitHubPatch;Third Party Advisory
-
https://patchwork.kernel.org/patch/10096441/
[net] rds: Fix NULL pointer dereference in __rds_rdma_map - PatchworkPatch;Third Party Advisory
-
https://usn.ubuntu.com/3619-1/
USN-3619-1: Linux kernel vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://usn.ubuntu.com/3619-2/
USN-3619-2: Linux kernel (Xenial HWE) vulnerabilities | Ubuntu security noticesThird 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/
Linux kernel RDMA NULL pointer dereference | xorl %eax, %eaxExploit;Patch;Third Party Advisory
-
https://usn.ubuntu.com/3674-2/
USN-3674-2: Linux kernel (Trusty HWE) vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://www.debian.org/security/2018/dsa-4187
Debian -- Security Information -- DSA-4187-1 linuxThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html
[SECURITY] [DLA 1369-1] linux security updateMailing List;Third Party Advisory
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