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CVE-2018-14679

Quick assessment

Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Libmspack是一款能够对CAB、CHM和HLP等格式文件进行压缩和解压的库。 libmspack 0.7alpha之前版本的mspack/chmd.c中存在安全漏洞，该漏洞源于CHM的TOLOWER()宏中有一个off by one错误，允许攻击者导致拒绝服务。

AI Predicted 5.5 Difficulty: Easy EPSS 3.31% · P88

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2018-14679

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An issue was discovered in mspack/chmd.c in libmspack before 0.7alpha. There is an off-by-one error in the CHM PMGI/PMGL chunk number validity checks, which could lead to denial of service (uninitialized data dereference and application crash).
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Libmspack mspack/chmd.c 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Libmspack是一款能够对CAB、CHM和HLP等格式文件进行压缩和解压的库。 libmspack 0.7alpha之前版本的mspack/chmd.c中存在安全漏洞，该漏洞源于CHM的TOLOWER()宏中有一个off by one错误，允许攻击者导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- n/a n/a -

II. Public POCs for CVE-2018-14679

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III. Intelligence Information for CVE-2018-14679

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Patches & Fixes for CVE-2018-14679 (1)

Vendor Advisories for CVE-2018-14679 (8)

Mailing List Discussions for CVE-2018-14679 (2)

Same Patch Batch · n/a · 2018-07-28 · 9 CVEs total

CVE-2018-14680 Libmspack 输入验证错误漏洞
CVE-2018-14681 Libmspack 缓冲区错误漏洞
CVE-2018-14682 Libmspack mspack/chmd.c 安全漏洞
CVE-2018-14685 Gxlcms 安全漏洞
CVE-2018-14686 XYCMS 跨站脚本漏洞
CVE-2018-14678 Xen Linux kernel 安全漏洞
CVE-2018-0497 ARM mbed TLS 安全漏洞
CVE-2018-0498 ARM mbed TLS 安全漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2018-14679

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