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CVE-2020-27837

Quick assessment

Affected
n/a gdm
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.

GNOME Display Manager（GDM）是一款显示管理器。 GNOME Display Manager 存在竞争条件问题漏洞，攻击者可利用该漏洞可以通过GDM的自动锁屏绕过限制，以升级他的特权。

AI Predicted 5.4 Difficulty: Moderate EPSS 0.22% · P13
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I. Basic Information for CVE-2020-27837

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in GDM in versions prior to 3.38.2.1. A race condition in the handling of session shutdown makes it possible to bypass the lock screen for a user that has autologin enabled, accessing their session without authentication. This is similar to CVE-2017-12164, but requires more difficult conditions to exploit.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
使用共享资源的并发执行不恰当同步问题(竞争条件)
Source: CVE Program / CVE List V5
Vulnerability Title
GNOME Display Manager 竞争条件问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GNOME Display Manager（GDM）是一款显示管理器。 GNOME Display Manager 存在竞争条件问题漏洞，攻击者可利用该漏洞可以通过GDM的自动锁屏绕过限制，以升级他的特权。
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
- gdm prior to 3.38.2.1 -

II. Public POCs for CVE-2020-27837

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III. Intelligence Information for CVE-2020-27837

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Vendor Advisories for CVE-2020-27837 (1)

Same Patch Batch · n/a · 2020-12-28 · 34 CVEs total

CVE-2020-29243 Dhowden Tag 输入验证错误漏洞
CVE-2020-26033 Zammad 跨站请求伪造漏洞
CVE-2020-26034 Zammad 安全漏洞
CVE-2020-26035 Zammad 跨站脚本漏洞
CVE-2020-29158 Zammad 安全漏洞
CVE-2020-29159 Zammad 安全漏洞
CVE-2020-29160 Zammad 安全漏洞
CVE-2020-29245 Dhowden Tag 输入验证错误漏洞
CVE-2020-29244 Dhowden Tag 输入验证错误漏洞
CVE-2020-26032 Zammad 代码问题漏洞
CVE-2020-29242 Dhowden Tag 输入验证错误漏洞
CVE-2020-29194 Panasonic Security System 安全漏洞
CVE-2020-29193 Panasonic Security System 信任管理问题漏洞
CVE-2020-28096 FOSCAM FHD X1 安全漏洞
CVE-2020-28094 Tenda AC1200 安全漏洞
CVE-2020-28093 Tenda AC1200 安全漏洞
CVE-2020-35738 WavPack 缓冲区错误漏洞
CVE-2020-13476 NCH Express Invoice 跨站脚本漏洞
CVE-2020-26031 Zammad 安全漏洞
CVE-2020-26030 Zammad 授权问题漏洞

Showing top 20 of 34 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: gdm
Same vendor: n/a
Same weakness: CWE-362

V. Comments for CVE-2020-27837

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