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.
CVE-2018-7492
Score 5.5 from GitHub Security Advisory published 2022-05-14. NVD baseline CVSS 5.5; sources differ by 0.0.
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 5.5
- EG Score
- 5.5(medium)
- EG Risk
- 30(Track)EG Risk 30/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity55% × 45%Exploitation1% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 47.5%
- KEV
- Not listed
Published
February 26, 2018
Last Modified
November 21, 2024
References (30)
- cve@mitrehttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f3069c6d33f6ae63a1668737bc78aaaa51bff7ca
- cve@mitrehttp://www.securityfocus.com/bid/103185
- cve@mitrehttps://bugzilla.redhat.com/show_bug.cgi?id=1527393
- cve@mitrehttps://github.com/torvalds/linux/commit/f3069c6d33f6ae63a1668737bc78aaaa51bff7ca
- cve@mitrehttps://lists.debian.org/debian-lts-announce/2018/05/msg00000.html
- cve@mitrehttps://patchwork.kernel.org/patch/10096441/
- cve@mitrehttps://usn.ubuntu.com/3619-1/
- cve@mitrehttps://usn.ubuntu.com/3619-2/
- cve@mitrehttps://usn.ubuntu.com/3674-1/
- cve@mitrehttps://usn.ubuntu.com/3674-2/
- cve@mitrehttps://usn.ubuntu.com/3677-1/
- cve@mitrehttps://usn.ubuntu.com/3677-2/
- cve@mitrehttps://www.debian.org/security/2018/dsa-4187
- cve@mitrehttps://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.7
- cve@mitrehttps://xorl.wordpress.com/2017/12/18/linux-kernel-rdma-null-pointer-dereference/
Patch Availability(6)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | linux-image-raspi2 (4.13.0.1022.20) @ artful | 2026-05-28 | ubuntu |
| ubuntu | linux-image-generic-lts-trusty (3.13.0.151.142) @ precise | 2026-05-28 | ubuntu |
| ubuntu | linux-image-extra-4.13.0-45-generic (4.13.0-45.50~16.04.1) @ xenial | 2026-05-28 | ubuntu |
| ubuntu | linux-image-extra-3.13.0-151-generic (3.13.0-151.201) @ trusty | 2026-05-28 | ubuntu |
| ubuntu | linux-image-extra-4.4.0-119-generic (4.4.0-119.143) @ xenial | 2026-05-28 | ubuntu |
| ubuntu | linux-image-extra-4.4.0-119-generic (4.4.0-119.143~14.04.1) @ trusty | 2026-05-28 | ubuntu |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(6)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
- UbuntuUSN-3619-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-3619-2MEDIUM
Linux kernel (Xenial HWE) vulnerabilities
- UbuntuUSN-3674-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-3674-2MEDIUM
Linux kernel (Trusty HWE) vulnerabilities
- UbuntuUSN-3677-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-3677-2MEDIUM
Linux kernel (HWE) vulnerabilities
Data Freshness Timeline
(refreshed 15× in last 7d / 46× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-24 14:14 UTCEPSS rescore
- 2026-07-24 14:14 UTCEPSS rescore
- 2026-07-23 14:15 UTCEPSS rescore
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- 2026-07-23 01:37 UTCEG score recompute
- 2026-07-22 22:17 UTCEG score recompute
- 2026-07-22 14:05 UTCEPSS rescore
- 2026-07-21 17:18 UTCOSV refresh
- 2026-07-21 15:22 UTCEPSS rescore
- 2026-07-20 17:04 UTCEPSS rescore
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- 2026-07-19 14:28 UTCEPSS rescore
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- 2026-07-12 05:43 UTCEPSS rescore
- 2026-07-09 19:06 UTCEPSS rescore
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- 2026-07-07 13:42 UTCEPSS rescore
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- 2026-07-06 02:20 UTCEPSS rescore
- 2026-07-05 02:27 UTCEPSS rescore
- 2026-07-04 12:56 UTCOSV refresh
- 2026-07-04 06:28 UTCEPSS rescore
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- 2026-07-01 15:03 UTCEPSS rescore
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- 2026-06-30 23:20 UTCEPSS rescore
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- 2026-06-18 17:50 UTCEPSS rescore
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- 2026-06-17 17:50 UTCEPSS rescore
- 2026-06-16 17:50 UTCEPSS rescore
- 2026-06-16 17:50 UTCEPSS rescore
- 2026-06-16 00:13 UTCOSV refresh
- 2026-06-15 17:45 UTCEPSS rescore
- 2026-06-14 23:15 UTCEPSS rescore
- 2026-06-14 23:15 UTCEPSS rescore
- 2026-06-13 22:58 UTCEPSS rescore
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- 2026-06-11 13:57 UTCEPSS rescore
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- 2026-06-08 14:14 UTCEPSS rescore
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- 2026-05-31 00:14 UTCEPSS rescore
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- 2026-05-29 13:41 UTCEPSS rescore
- 2026-05-28 13:43 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 11:02 UTCEG score recompute
- 2026-05-28 11:02 UTCVendor advisory
- 2026-05-28 11:02 UTCGHSA enrichment
- 2026-05-27 13:38 UTCEPSS rescore
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- 2026-05-26 13:42 UTCEPSS rescore
- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-25 00:43 UTCOSV refresh
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Frequently asked(5)
What is CVE-2018-7492?
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Is CVE-2018-7492 actively exploited?
What is the CVSS score of CVE-2018-7492?
How do I remediate CVE-2018-7492?
Dependency Blast Radius
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