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Fencer Vulns
high 8.2

CVE-2019-17533 json

Mat_VarReadNextInfo4 in mat4.c in MATIO 1.5.17 omits a certain '\0' character, leading to a heap-based buffer over-read in strdup_vprintf w…

published 2019-10-13 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-7883

cvss
8.2
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 77%
public exploits
0
none known

Summary

Mat_VarReadNextInfo4 in mat4.c in MATIO 1.5.17 omits a certain '\0' character, leading to a heap-based buffer over-read in strdup_vprintf when uninitialized memory is accessed.

Patch / fix

  • libmatio Debian 14, Debian 13, Debian 12 1.5.17-4

debian advisories DEBIAN-CVE-2019-17533

  • libmatio Ubuntu Pro 14.04 LTS 1.5.2-1ubuntu1+esm1
  • libmatio Ubuntu Pro 16.04 LTS 1.5.3-1ubuntu0.1~esm1
  • libmatio Ubuntu Pro 18.04 LTS 1.5.11-1ubuntu0.1~esm1
  • libmatio Ubuntu Pro 20.04 LTS 1.5.17-3ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2019-17533

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • matio openSUSE Tumbleweed 1.5.21-1.2

opensuse advisories openSUSE-SU-2024:11040-1

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-2019-17533 updated cvss 5.3

matio: improper null termination in Mat_VarReadNextInfo4 in mat4.c leads to heap-based overflow

  • 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

1.69% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • bugs.chromium.org https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16856 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
NVD 2.0 6.4 AV:N/AC:L/Au:N/C:P/I:N/A:P

Classification

Weakness

References

Sources

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.