// For flags

CVE-2019-1010305

libmspack: buffer overflow in function chmd_read_headers()

Severity Score

5.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

libmspack versión 0.9.1alpha se ve afectado por: Desbordamiento de búfer. El impacto es: Divulgación de información. El componente es: function chmd_read_headers() en libmspack(file libmspack/mspack/chmd.c). El vector de ataque es: la víctima debe abrir un archivo chm especialmente diseñado. La versión corregida es: después del commit 2f084136cfe0d05e5bf5703f3e83c6d955234b4d.

USN-4066-1 fixed a vulnerability in libmspack. This update provides the corresponding update for ClamAV in Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. It was discovered that ClamAV incorrectly handled certain CHM files. A remote attacker could possibly use this issue to access sensitive information.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-03-20 CVE Reserved
  • 2019-07-15 CVE Published
  • 2024-08-05 CVE Updated
  • 2024-08-05 First Exploit
  • 2025-07-08 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
  • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Kyzer
Search vendor "Kyzer"
 Libmspack
Search vendor "Kyzer" for product "Libmspack"
 0.9.1
Search vendor "Kyzer" for product "Libmspack" and version "0.9.1"
alpha
Affected
Fedoraproject
Search vendor "Fedoraproject"
 Fedora
Search vendor "Fedoraproject" for product "Fedora"
 29
Search vendor "Fedoraproject" for product "Fedora" and version "29"
-
Affected
Fedoraproject
Search vendor "Fedoraproject"
 Fedora
Search vendor "Fedoraproject" for product "Fedora"
 30
Search vendor "Fedoraproject" for product "Fedora" and version "30"
-
Affected
Debian
Search vendor "Debian"
 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 8.0
Search vendor "Debian" for product "Debian Linux" and version "8.0"
-
Affected
Debian
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 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 9.0
Search vendor "Debian" for product "Debian Linux" and version "9.0"
-
Affected
Canonical
Search vendor "Canonical"
 Ubuntu Linux
Search vendor "Canonical" for product "Ubuntu Linux"
 12.04
Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04"
esm
Affected
Canonical
Search vendor "Canonical"
 Ubuntu Linux
Search vendor "Canonical" for product "Ubuntu Linux"
 14.04
Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"
esm
Affected
Canonical
Search vendor "Canonical"
 Ubuntu Linux
Search vendor "Canonical" for product "Ubuntu Linux"
 16.04
Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"
lts
Affected
Canonical
Search vendor "Canonical"
 Ubuntu Linux
Search vendor "Canonical" for product "Ubuntu Linux"
 18.04
Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04"
lts
Affected