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

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2021-44879

Quick assessment

Affected
n/a n/a
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.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在代码问题漏洞，该漏洞源于在 5.16.3 之前的 Linux kernel fs/f2fs/gc.c 中的 gc_data_segment 中，没有考虑特殊文件，导致 move_data_page 空指针取消引用。

AI Predicted 5.5 Difficulty: Moderate EPSS 1.23% · P66

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2021-44879

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In gc_data_segment in fs/f2fs/gc.c in the Linux kernel before 5.16.3, special files are not considered, leading to a move_data_page NULL pointer dereference.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在代码问题漏洞，该漏洞源于在 5.16.3 之前的 Linux kernel fs/f2fs/gc.c 中的 gc_data_segment 中，没有考虑特殊文件，导致 move_data_page 空指针取消引用。
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
- n/a n/a -

II. Public POCs for CVE-2021-44879

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2021-44879

请登录查看更多情报信息。

Patches & Fixes for CVE-2021-44879 (1)

Vendor Advisories for CVE-2021-44879 (1)

Mailing List Discussions for CVE-2021-44879 (2)

Other References for CVE-2021-44879 (2)

Same Patch Batch · n/a · 2022-02-13 · 4 CVEs total

CVE-2022-24977 ImpressCMS 安全漏洞
CVE-2022-24976 Atheme IRC Services 授权问题漏洞
CVE-2021-45444 Zsh 操作系统命令注入漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2021-44879

No comments yet

Leave a comment