CVE-2018-14633

HIGHNVD 7.07.0—
EchelonGraph scoreMEDIUM confidence

Score 7.0 from GitHub Security Advisory (severity: HIGH) published 2022-05-13. NVD baseline CVSS 7.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.0
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 9%CVSS: 7.0Exploit: NoneExposed: 0

A fix is available — apply it.

A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in the Linux kernel in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. The attack requires the iSCSI target to be enabled on the victim host. Depending on how the target's code was built (i.e. depending on a compiler, compile flags and hardware architecture) an attack may lead to a system crash and thus to a denial-of-service or possibly to a non-authorized access to data exported by an iSCSI target. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is highly unlikely. Kernel versions 4.18.x, 4.14.x and 3.10.x are believed to be vulnerable.

CVSS v3
7.0
EG Score
7.0(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: 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 computed
Severity70% × 45%
Exploitation9% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
94.6%
KEV
Not listed

Published

September 25, 2018

Last Modified

November 21, 2024

References (36)

Patch Availability(11)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-unsigned-4.15.0-36-lowlatency (4.15.0-36.39) @ bionic2026-05-28ubuntu
ubuntulinux-image-extra-4.4.0-137-generic (4.4.0-137.163) @ xenial2026-05-28ubuntu
ubuntulinux-image-unsigned-4.15.0-36-lowlatency (4.15.0-36.39~16.04.1) @ xenial2026-05-28ubuntu
ubuntulinux-image-3.2.0-136-highbank (3.2.0-136.182) @ precise2026-05-28ubuntu
ubuntulinux-image-generic-lts-trusty (3.13.0.160.150) @ precise2026-05-28ubuntu
ubuntulinux-image-extra-3.13.0-160-generic (3.13.0-160.210) @ trusty2026-05-28ubuntu
ubuntulinux-image-unsigned-4.15.0-1025-azure (4.15.0-1025.26~16.04.1) @ xenial2026-05-28ubuntu
ubuntulinux-image-extra-4.4.0-137-generic (4.4.0-137.163~14.04.1) @ trusty2026-05-28ubuntu
redhatkernel-0:3.10.0-693.55.1.el72019-07-30redhat
redhatkernel-0:3.10.0-957.1.3.el72018-11-27redhat
redhatkernel-rt-0:3.10.0-957.1.3.rt56.913.el72018-11-27redhat

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(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(11)

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.

Data Freshness Timeline

(refreshed 12× in last 7d / 42× 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.

  1. 2026-07-23 01:33 UTCEG score recompute
  2. 2026-07-22 22:13 UTCEG score recompute
  3. 2026-07-22 14:04 UTCEPSS rescore
  4. 2026-07-21 15:21 UTCEPSS rescore
  5. 2026-07-21 04:48 UTCOSV refresh
  6. 2026-07-20 17:04 UTCEPSS rescore
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  1. 2026-07-04 06:28 UTCEPSS rescore
  2. 2026-07-04 00:26 UTCOSV refresh
  3. 2026-07-02 16:54 UTCEPSS rescore
  4. 2026-07-01 15:03 UTCEPSS rescore
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  6. 2026-06-30 23:19 UTCEPSS rescore
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  8. 2026-06-29 14:03 UTCEPSS rescore
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  29. 2026-06-16 17:50 UTCEPSS rescore
  30. 2026-06-15 17:45 UTCEPSS rescore
  31. 2026-06-15 12:43 UTCOSV refresh
  32. 2026-06-14 23:14 UTCEPSS rescore
  33. 2026-06-14 23:14 UTCEPSS rescore
  34. 2026-06-13 22:58 UTCEPSS rescore
  35. 2026-06-13 22:58 UTCEPSS rescore
  36. 2026-06-12 23:09 UTCEPSS rescore
  37. 2026-06-11 13:57 UTCEPSS rescore
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  39. 2026-06-10 13:19 UTCEPSS rescore
  40. 2026-06-08 14:14 UTCEPSS rescore
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  44. 2026-06-06 13:45 UTCEPSS rescore
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  50. 2026-06-04 13:10 UTCEPSS rescore
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  61. 2026-05-28 13:42 UTCEPSS rescore
  62. 2026-05-28 02:51 UTCEG score recompute
  63. 2026-05-28 02:51 UTCVendor advisory
  64. 2026-05-28 02:51 UTCGHSA enrichment
  65. 2026-05-27 22:18 UTCOSV refresh
  66. 2026-05-27 13:38 UTCEPSS rescore
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  70. 2026-05-26 07:17 UTCEPSS rescore
  71. 2026-05-26 07:17 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2018-14633?
CVE-2018-14633 is a high vulnerability published on September 25, 2018. A security flaw was found in the chapservercompute_md5() function in the ISCSI target code in the Linux kernel in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. The…
When was CVE-2018-14633 disclosed?
CVE-2018-14633 was first published in the National Vulnerability Database on September 25, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-14633 actively exploited?
CVE-2018-14633 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 94.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-14633?
CVE-2018-14633 has a CVSS v3 base score of 7.0 (NVD).
How do I remediate CVE-2018-14633?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-14633, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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