HOMEVULNERABILITIESCVE-2019-1010305
MEDIUM

CVE-2019-1010305

CWE-119Published: July 15, 2019· Updated: Jun 17, 2026

5.5
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2019-1010305 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 5.5.

From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Affected Vendors & Products

Canonical1 product(s)
ubuntu linux
Debian1 product(s)
debian linux
Fedora1 product(s)
fedora
kyzer1 product(s)
libmspack
Source: NVD CPE · 9 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/kyz/libmspack/commit/2f084136cfe0d05e5bf5703f3e83c6d955234b4d
PATCHhttps://github.com/kyz/libmspack/commit/2f084136cfe0d05e5bf5703f3e83c6d955234b4d
ADVISORYhttps://github.com/kyz/libmspack/issues/27
ADVISORYhttps://lists.debian.org/debian-lts-announce/2019/08/msg00028.html
ADVISORYhttps://lists.debian.org/debian-lts-announce/2021/10/msg00033.html
ADVISORYhttps://usn.ubuntu.com/4066-1/
ADVISORYhttps://usn.ubuntu.com/4066-2/
ADVISORYhttps://github.com/kyz/libmspack/issues/27
ADVISORYhttps://lists.debian.org/debian-lts-announce/2019/08/msg00028.html
ADVISORYhttps://lists.debian.org/debian-lts-announce/2021/10/msg00033.html
ADVISORYhttps://usn.ubuntu.com/4066-1/
ADVISORYhttps://usn.ubuntu.com/4066-2/

All References (16)

→
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

Quick Facts

CVE IDCVE-2019-1010305
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-119
CISA KEVNo
Affected4 vendor(s)
PublishedJul 15, 2019

Related CVEs (CWE-119)

CVE-2008-7232
10.0
CVE-2008-0067
10.0
CVE-2021-21950
10.0
CVE-2021-21951
10.0
CVE-2009-3849
10.0
CVE-2009-3999
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-1010305 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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