Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2023-43786— Libx11: stack exhaustion from infinite recursion in putsubimage()

Quick assessment

Affected
Red Hat Red Hat Enterprise Linux 8
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

X.Org libX11是X.org基金会的一个X11（X Window系统）客户端库。 libX11存在安全漏洞，该漏洞源于函数PutSubImage（）存在无限循环。攻击者可利用该漏洞消耗系统资源并造成拒绝服务（DoS）。

CVSS 5.5 · Medium EPSS 0.46% · P38

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2023-43786

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Libx11: stack exhaustion from infinite recursion in putsubimage()
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in libX11 due to an infinite loop within the PutSubImage() function. This flaw allows a local user to consume all available system resources and cause a denial of service condition.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
X.Org libX11 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
X.Org libX11是X.org基金会的一个X11（X Window系统）客户端库。 libX11存在安全漏洞，该漏洞源于函数PutSubImage（）存在无限循环。攻击者可利用该漏洞消耗系统资源并造成拒绝服务（DoS）。
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
Red Hat Red Hat Enterprise Linux 8 0:1.6.8-8.el8 ~ * cpe:/a:redhat:enterprise_linux:8::appstream
Red Hat Red Hat Enterprise Linux 9 0:1.7.0-9.el9 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red Hat Red Hat Enterprise Linux 6 - cpe:/o:redhat:enterprise_linux:6
Red Hat Red Hat Enterprise Linux 7 - cpe:/o:redhat:enterprise_linux:7

II. Public POCs for CVE-2023-43786

# POC Description Source Link Shenlong Link
1 None https://github.com/jfrog/jfrog-CVE-2023-43786-libX11_DoS POC Details
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2023-43786

请登录查看更多情报信息。

Vendor Advisories for CVE-2023-43786 (5)

Mailing List Discussions for CVE-2023-43786 (2)

IV. Related Vulnerabilities

Same weakness: CWE-400

V. Comments for CVE-2023-43786

No comments yet

Leave a comment