The newVar_N function in decompile.c in libming through 0.4.8 mishandles cases where the header indicates a file size greater than the actu…

published 2018-05-13 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-3066

cvss: 8.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.3%; EPSS 1.3% chance of exploitation in 30 days, percentile 71%
public exploits: 0; none known

The newVar_N function in decompile.c in libming through 0.4.8 mishandles cases where the header indicates a file size greater than the actual size, which allows remote attackers to cause a denial of service (Segmentation fault and application crash) or possibly have unspecified other impact.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-11017 updated 2025-11-21 cvss 5.9

ming: decompile.c: newVar_N() mishandles cases where the header indicates a file size greater than the actual size

Red Hat All currently supported Red Hat products
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.34% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

docs.google.com https://docs.google.com/document/d/18lJc_F5p3HPaMwsUAIwP0zMMhwJs-Snhuj05nhMIgAw/edit referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.0	8.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

docs.google.com /document/d/18lJc_F5p3HPaMwsUAIwP0zMMhwJs-Snhuj05nhMIgAw/edit
exploit, third-party-advisory

Sources

CVE List CVE-2018-11017
NVD CVE-2018-11017

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary