What is the CVSS score of CVE-2018-18584?

CVE-2018-18584 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H. EPSS exploitation probability: 3.1%.

Is there a patch available for CVE-2018-18584?

Yes, a patch is available for CVE-2018-18584. Update the affected software to the latest version immediately.

Cabextract CVE-2018-18584

MEDIUM

Out-of-bounds Write (CWE-787)

2018-10-23 cve@mitre.org

Memory Corruption Buffer Overflow Cabextract Libmspack Debian Linux Enterprise Linux Ubuntu Linux Linux Enterprise Server Starwind Virtual San

6.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.5 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

Oct 23, 2018 - 02:29 nvd

MEDIUM 6.5

DescriptionNVD

In mspack/cab.h in libmspack before 0.8alpha and cabextract before 1.8, the CAB block input buffer is one byte too small for the maximal Quantum block, leading to an out-of-bounds write.

AnalysisAI

In mspack/cab.h in libmspack before 0.8alpha and cabextract before 1.8, the CAB block input buffer is one byte too small for the maximal Quantum block, leading to an out-of-bounds write. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. In mspack/cab.h in libmspack before 0.8alpha and cabextract before 1.8, the CAB block input buffer is one byte too small for the maximal Quantum block, leading to an out-of-bounds write. Affected products include: Cabextract Project Cabextract, Libmspack Project Libmspack, Debian Debian Linux, Redhat Enterprise Linux, Canonical Ubuntu Linux. Version information: before 0.8.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).