CVE-2019-1010305

Name: CVE-2019-1010305
Creator: NVD / NIST
Published: 2019-07-15T15:15:11.377+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 1.46%

Last modified Jun 17, 2026

CVE-2019-1010305 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. libmspack 0.9.1alpha is affected by: Buffer Overflow. The impact is: Information Disclosure. EPSS estimates a 1.46% chance of exploitation in the next 30 days.

Description

libmspack 0.9.1alpha is affected by: Buffer Overflow. The impact is: Information Disclosure. The component is: function chmd_read_headers() in libmspack(file libmspack/mspack/chmd.c). The attack vector is: the victim must open a specially crafted chm file. The fixed version is: after commit 2f084136cfe0d05e5bf5703f3e83c6d955234b4d.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS Probability

1.46%

70.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions	Update
Kyzer	Libmspack	0.9.1	Alpha
Fedoraproject	Fedora	29	—
Fedoraproject	Fedora	30	—
Debian	Debian Linux	8.0	—
Debian	Debian Linux	9.0	—
Canonical	Ubuntu Linux	12.04	—
Canonical	Ubuntu Linux	14.04	—
Canonical	Ubuntu Linux	16.04	—
Canonical	Ubuntu Linux	18.04	—

References

https://github.com/kyz/libmspack/commit/2f084136cfe0d05e5bf5703f3e83c6d955234b4dPatch, Third Party Advisory
https://github.com/kyz/libmspack/issues/27Exploit, Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/08/msg00028.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/10/msg00033.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IXWNEY4CJBLPRKV6LG7FQUPD6WVZYBTB/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S2QJTUAGP22YY7453MHGTFN4YQE5HJBR/
https://usn.ubuntu.com/4066-1/Third Party Advisory
https://usn.ubuntu.com/4066-2/Third Party Advisory
https://github.com/kyz/libmspack/commit/2f084136cfe0d05e5bf5703f3e83c6d955234b4dPatch, Third Party Advisory
https://github.com/kyz/libmspack/issues/27Exploit, Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/08/msg00028.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/10/msg00033.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IXWNEY4CJBLPRKV6LG7FQUPD6WVZYBTB/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S2QJTUAGP22YY7453MHGTFN4YQE5HJBR/
https://usn.ubuntu.com/4066-1/Third Party Advisory
https://usn.ubuntu.com/4066-2/Third Party Advisory

Timeline

Published: Jul 15, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-1010305?

How severe is CVE-2019-1010305?

CVE-2019-1010305 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 1.46% probability of exploitation in the next 30 days.

How do I fix CVE-2019-1010305?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-1010305?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST