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

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2022-26477— Denial of service in readExternal method

Quick assessment

Affected
Apache Software Foundation Apache SystemDS
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.

Apache SystemDS是美国阿帕奇（Apache）基金会的用于端到端数据科学生命周期的开源机器学习系统。 Apache SystemDS 2.2.1版本及之前版本存在安全漏洞，该漏洞源于readExternal方法中for循环的终止条件是一个可控变量，如果被篡改，会导致CPU耗尽。

AI Predicted 5.3 Difficulty: Hard EPSS 2.20% · P82
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2022-26477

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Denial of service in readExternal method
Source: CVE Program / CVE List V5
Vulnerability Description
The Security Team noticed that the termination condition of the for loop in the readExternal method is a controllable variable, which, if tampered with, may lead to CPU exhaustion. As a fix, we added an upper bound and termination condition in the read and write logic. We classify it as a "low-priority but useful improvement". SystemDS is a distributed system and needs to serialize/deserialize data but in many code paths (e.g., on Spark broadcast/shuffle or writing to sequence files) the byte stream is anyway protected by additional CRC fingerprints. In this particular case though, the number of decoders is upper-bounded by twice the number of columns, which means an attacker would need to modify two entries in the byte stream in a consistent manner. By adding these checks robustness was strictly improved with almost zero overhead. These code changes are available in versions higher than 2.2.1.
Source: CVE Program / CVE List V5
CVSS Information
N/A
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
Apache SystemDS 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache SystemDS是美国阿帕奇（Apache）基金会的用于端到端数据科学生命周期的开源机器学习系统。 Apache SystemDS 2.2.1版本及之前版本存在安全漏洞，该漏洞源于readExternal方法中for循环的终止条件是一个可控变量，如果被篡改，会导致CPU耗尽。
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
Apache Software Foundation Apache SystemDS unspecified ~ 2.2.2 -

II. Public POCs for CVE-2022-26477

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

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2022-26477

请登录查看更多情报信息。

Mailing List Discussions for CVE-2022-26477 (1)

IV. Related Vulnerabilities

Same vendor: Apache Software Foundation
Same weakness: CWE-400

V. Comments for CVE-2022-26477

No comments yet

Leave a comment