CVE-2020-29534

Published: Dic 03, 2020 Last Modified: Nov 21, 2024 EU-VD ID: EUVD-2020-21900 Aliases: GSD-2020-29534
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 7,8
Source: [email protected]
Attack Vector: local
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
HIGH 7,2
Source: [email protected]
Access Vector: local
Access Complexity: low
Authentication: none
Confidentiality: complete
Integrity: complete
Availability: complete

Description

AI Translation Available

An issue was discovered in the Linux kernel before 5.9.3. io_uring takes a non-refcounted reference to the files_struct of the process that submitted a request, causing execve() to incorrectly optimize unshare_fd(), aka CID-0f2122045b94.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0004
Percentile
0,1th
Updated

EPSS Score Trend (Last 90 Days)

Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
From 5.1 (inclusive)
To 5.8.18 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version 5.10
cpe:2.3:o:linux:linux_kernel:5.10:rc1:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
From 5.9.0 (inclusive)
To 5.9.3 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://bugs.chromium.org/p/project-zero/issues/detail?id=2…
Exploit Issue Tracking Patch Third Party Advisory
https://bugs.chromium.org/p/project-zero/issues/detail?id=2089
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9.3
Patch Vendor Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9.3
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/li…
Patch Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0…
https://bugs.chromium.org/p/project-zero/issues/detail?id=2…
Exploit Issue Tracking Patch Third Party Advisory
https://bugs.chromium.org/p/project-zero/issues/detail?id=2089
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9.3
Patch Vendor Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9.3
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/li…
Patch Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0…