CVE-2019-20633
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.
GNU patch是GNU计划的一套用于生成补丁文件的工具。 GNU patch 2.7.6及之前版本中的pch.c文件的‘another_hunk’函数存在资源管理错误漏洞。攻击者可借助特制的补丁文件利用该漏洞造成拒绝服务。
Possible ATT&CK Techniques 2 AI
T1190 · Exploit Public-Facing Application T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2019-20633
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
GNU patch through 2.7.6 contains a free(p_line[p_end]) Double Free vulnerability in the function another_hunk in pch.c that can cause a denial of service via a crafted patch file. NOTE: this issue exists because of an incomplete fix for CVE-2018-6952.
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
GNU patch 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GNU patch是GNU计划的一套用于生成补丁文件的工具。 GNU patch 2.7.6及之前版本中的pch.c文件的‘another_hunk’函数存在资源管理错误漏洞。攻击者可借助特制的补丁文件利用该漏洞造成拒绝服务。
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-2019-20633
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2019-20633 (1)
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https://savannah.gnu.org/bugs/index.php?56683 x_refsource_MISC
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IV. Related Vulnerabilities
V. Comments for CVE-2019-20633
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