CVE-2018-6942
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.
FreeType 2是FreeType团队开发的一个基于C语言的、可移植的开源字体引擎库，它可用来将字符栅格化并映射成位图以及提供其他字体相关业务的支持。 FreeType 2 2.9及之前版本中的ttinterp.c文件的‘Ins_GETVARIATION()’函数存在安全漏洞。远程攻击者可借助特制的字体文件利用该漏洞造成拒绝服务（空指针逆向引用）。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2018-6942
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An issue was discovered in FreeType 2 through 2.9. A NULL pointer dereference in the Ins_GETVARIATION() function within ttinterp.c could lead to DoS via a crafted font file.
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
FreeType 2 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FreeType 2是FreeType团队开发的一个基于C语言的、可移植的开源字体引擎库，它可用来将字符栅格化并映射成位图以及提供其他字体相关业务的支持。 FreeType 2 2.9及之前版本中的ttinterp.c文件的‘Ins_GETVARIATION()’函数存在安全漏洞。远程攻击者可借助特制的字体文件利用该漏洞造成拒绝服务（空指针逆向引用）。
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-2018-6942
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2018-6942 (2)
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https://www.oracle.com/security-alerts/cpuapr2020.html x_refsource_MISC
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Mailing List Discussions for CVE-2018-6942 (1)
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http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00054.html vendor-advisory x_refsource_SUSE
Other References for CVE-2018-6942 (2)
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https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5736 x_refsource_MISC
Same Patch Batch · n/a · 2018-02-13 · 19 CVEs total
| CVE-2017-18186 | QPDF 资源管理错误漏洞 | |
| CVE-2018-6930 | ImageMagick 缓冲区错误漏洞 | |
| CVE-2018-6911 | Advantech WebAccess 操作系统命令注入漏洞 | |
| CVE-2018-0488 | ARM mbed TLS 缓冲区错误漏洞 | |
| CVE-2018-0487 | ARM mbed TLS 缓冲区错误漏洞 | |
| CVE-2018-6948 | CCN-lite 缓冲区错误漏洞 | |
| CVE-2018-6928 | PHP Scripts Mall News Website Script SQL注入漏洞 | |
| CVE-2018-6952 | GNU patch 安全漏洞 | |
| CVE-2018-6951 | GNU patch 安全漏洞 | |
| CVE-2018-5459 | WAGO PFC200 Series 3S CoDeSys Runtime 授权问题漏洞 | |
| CVE-2017-18185 | QPDF 缓冲区错误漏洞 | |
| CVE-2017-18184 | QPDF 缓冲区错误漏洞 | |
| CVE-2017-18183 | QPDF 资源管理错误漏洞 | |
| CVE-2016-10713 | GNU patch 缓冲区错误漏洞 | |
| CVE-2015-9252 | QPDF 资源管理错误漏洞 | |
| CVE-2018-6954 | systemd 权限许可和访问控制问题漏洞 | |
| CVE-2018-6953 | CCN-lite NDNTLV解析器缓冲区错误漏洞 | |
| CVE-2018-6910 | DedeCMS 信息泄露漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2018-6942
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