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CVE-2019-11922

Quick assessment

Affected
Facebook Zstandard
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.

Facebook Zstandard是美国Facebook公司的一种开源的无损数据压缩算法。 Facebook Zstandard 1.3.8之前版本中存在竞争条件问题漏洞。该漏洞源于网络系统或产品在运行过程中，并发代码需要互斥地访问共享资源时，对于并发访问的处理不当。

AI Predicted 8.6 Difficulty: Moderate EPSS 1.42% · P72

Possible ATT&CK Techniques 1 AI

T1590 · Gather Victim Network Information
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I. Basic Information for CVE-2019-11922

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A race condition in the one-pass compression functions of Zstandard prior to version 1.3.8 could allow an attacker to write bytes out of bounds if an output buffer smaller than the recommended size was used.
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
Facebook Zstandard 竞争条件问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Facebook Zstandard是美国Facebook公司的一种开源的无损数据压缩算法。 Facebook Zstandard 1.3.8之前版本中存在竞争条件问题漏洞。该漏洞源于网络系统或产品在运行过程中，并发代码需要互斥地访问共享资源时，对于并发访问的处理不当。
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
Facebook Zstandard 1.3.8 -

II. Public POCs for CVE-2019-11922

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III. Intelligence Information for CVE-2019-11922

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Patches & Fixes for CVE-2019-11922 (1)

Vendor Advisories for CVE-2019-11922 (2)

Mailing List Discussions for CVE-2019-11922 (3)

Other References for CVE-2019-11922 (1)

IV. Related Vulnerabilities

Same product: Zstandard
Same vendor: Facebook

V. Comments for CVE-2019-11922

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