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I. Basic Information for CVE-2019-18634
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
In Sudo before 1.8.26, if pwfeedback is enabled in /etc/sudoers, users can trigger a stack-based buffer overflow in the privileged sudo process. (pwfeedback is a default setting in Linux Mint and elementary OS; however, it is NOT the default for upstream and many other packages, and would exist only if enabled by an administrator.) The attacker needs to deliver a long string to the stdin of getln() in tgetpass.c.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Sudo 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Sudo是一款使用于类Unix系统的，允许用户通过安全的方式使用特殊的权限执行命令的程序。 Sudo 1.8.26之前版本中存在缓冲区错误漏洞，该漏洞源于程序没有正确检查边界。本地攻击者可借助特制字符串利用该漏洞在系统上执行任意代码。
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
VendorProductAffected VersionsCPESubscribe
-n/a n/a -
II. Public POCs for CVE-2019-18634
#POC DescriptionSource LinkShenlong Link
1A functional exploit for CVE-2019-18634, a BSS overflow in sudo's pwfeedback feature that allows for for priveschttps://github.com/Plazmaz/CVE-2019-18634POC Details
2Proof of Concept for CVE-2019-18634https://github.com/saleemrashid/sudo-cve-2019-18634POC Details
3An Python Exploit for Sudo vulnerability CVE-2019-18634https://github.com/N1et/CVE-2019-18634POC Details
4exploit for sudo CVE-2019-18634https://github.com/ptef/CVE-2019-18634POC Details
5Nonehttps://github.com/edsonjt81/sudo-cve-2019-18634POC Details
6exploithttps://github.com/Y3A/CVE-2019-18634POC Details
7My n-day exploit for CVE-2019-18634 (local privilege escalation)https://github.com/aesophor/CVE-2019-18634POC Details
8Nonehttps://github.com/TheJoyOfHacking/saleemrashid-sudo-cve-2019-18634POC Details
9Nonehttps://github.com/DDayLuong/CVE-2019-18634POC Details
10A reproduction of CVE-2019-18634, sudo privilege escalation with buffer overflow.https://github.com/chanbakjsd/CVE-2019-18634POC Details
11exploithttps://github.com/paras1te-x/CVE-2019-18634POC Details
12This repo contains both the exploit and the explaination of how this vulnerability is exploitedhttps://github.com/l0w3/CVE-2019-18634POC Details
13Nonehttps://github.com/ngyinkit/cve-2019-18634POC Details
14Nonehttps://github.com/letsr00t/-CVE-2019-18634-sudo-pwfeedbackPOC Details
15analysis of the sudo buffer overflow affect sudo version <1.8.26 and how to use GCC to compile publicly availible exploits https://github.com/CyrusRazavi/CVE-2019-18634-POC Details
16analysis of the sudo buffer overflow affect sudo version <1.8.26 and how to use GCC to compile publicly availible exploits https://github.com/CyrusRazavi/CVE-2019-18634-writeupPOC Details
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III. Intelligence Information for CVE-2019-18634
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IV. Related Vulnerabilities
Same product: n/a
Same vendor: n/a
V. Comments for CVE-2019-18634
Anonymous User
2026-01-15 06:08:55

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