CVE-2021-3472
Quick assessment
Affected
n/a xorg-x11-server
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.
X.Org X Server是X.Org（X.org）基金会的一款X Window系统显示服务器。 X.Org Server 存在数字错误漏洞，该漏洞允许本地用户升级系统上的特权。这是由于XChangeFeedbackControl()函数内的整数下溢。
Possible ATT&CK Techniques 1 AI
T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2021-3472
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in xorg-x11-server in versions before 1.20.11. An integer underflow can occur in xserver which can lead to a local privilege escalation. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
整数下溢(超界折返)
Source: CVE Program / CVE List V5
Vulnerability Title
X.Org X Server 数字错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
X.Org X Server是X.Org（X.org）基金会的一款X Window系统显示服务器。 X.Org Server 存在数字错误漏洞，该漏洞允许本地用户升级系统上的特权。这是由于XChangeFeedbackControl()函数内的整数下溢。
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 |
|---|---|---|---|---|
| - | xorg-x11-server | xorg-x11-server 1.20.11 | - |
|
II. Public POCs for CVE-2021-3472
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2021-3472 (4)
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https://bugzilla.redhat.com/show_bug.cgi?id=1944167 x_refsource_MISC
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https://www.zerodayinitiative.com/advisories/ZDI-21-463/ x_refsource_MISC
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Mailing List Discussions for CVE-2021-3472 (8)
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https://seclists.org/oss-sec/2021/q2/20 x_refsource_MISC
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https://lists.x.org/archives/xorg-announce/2021-April/003080.html x_refsource_CONFIRM
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PEXPCLMVU25AUZTUXC4MYBGPKOAIM5TW/ vendor-advisory x_refsource_FEDORA
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MO6S5OPXUDYBSRSVWVLFLJ6AFERG4HNY/ vendor-advisory x_refsource_FEDORA
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N63KL3T22HNFT4FJ7VMVF6U5Q4RFJIQF/ vendor-advisory x_refsource_FEDORA
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MDF7TAJE7NPZPNVOXSD5HBIFLNPUOD2V/ vendor-advisory x_refsource_FEDORA
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Other References for CVE-2021-3472 (2)
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https://www.tenable.com/plugins/nessus/148701 x_refsource_MISC
Same Patch Batch · n/a · 2021-04-26 · 20 CVEs total
| CVE-2021-23382 | 5.3 MEDIUM | Regular Expression Denial of Service (ReDoS) |
| CVE-2021-23365 | 4.8 MEDIUM | Authentication Bypass |
| CVE-2021-25838 | MintHCM 跨站脚本漏洞 | |
| CVE-2021-31804 | leocad 资源管理错误漏洞 | |
| CVE-2021-31803 | cPanel 跨站脚本漏洞 | |
| CVE-2021-25927 | safe-flat 安全漏洞 | |
| CVE-2021-25928 | safe-obj 安全漏洞 | |
| CVE-2021-26797 | Hame SD1 Wi-Fi 安全漏洞 | |
| CVE-2021-28079 | jamovi 跨站脚本漏洞 | |
| CVE-2021-31802 | NETGEAR R7000 缓冲区错误漏洞 | |
| CVE-2020-15078 | OpenVPN 访问控制错误漏洞 | |
| CVE-2021-22669 | Advantech WebAccess SCADA 安全漏洞 | |
| CVE-2021-25839 | MINTHCM 安全漏洞 | |
| CVE-2021-28399 | Orangehrm 安全漏洞 | |
| CVE-2021-3494 | Foreman 安全漏洞 | |
| CVE-2020-36325 | jansson 缓冲区错误漏洞 | |
| CVE-2021-31784 | Open Design Alliance Drawings SDK 缓冲区错误漏洞 | |
| CVE-2021-31783 | LocalFilesEditor 数据伪造问题漏洞 | |
| CVE-2021-31646 | Gestsup 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-3472
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