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CVE-2020-36846— IO::Compress::Brotli versions prior to 0.007 for Perl have an integer overflow in the bundled Brotli C library

Quick assessment

Affected
TIMLEGGE IO::Compress::Brotli
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.

MetaCPAN IO::Compress::Brotli是MetaCPAN基金会的一个库。 MetaCPAN IO::Compress::Brotli 0.007之前版本存在安全漏洞，该漏洞源于嵌入式Brotli库存在缓冲区溢出，可能导致崩溃。

AI Predicted 8.6 Difficulty: Moderate EPSS 0.63% · P48

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2020-36846

Vulnerability Information
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Vulnerability Title
IO::Compress::Brotli versions prior to 0.007 for Perl have an integer overflow in the bundled Brotli C library
Source: CVE Program / CVE List V5
Vulnerability Description
A buffer overflow, as described in CVE-2020-8927, exists in the embedded Brotli library.  Versions of IO::Compress::Brotli prior to 0.007 included a version of the brotli library prior to version 1.0.8, where an attacker controlling the input length of a "one-shot" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your IO::Compress::Brotli module to 0.007 or later. If one cannot update, we recommend to use the "streaming" API as opposed to the "one-shot" API, and impose chunk size limits.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1395
Source: CVE Program / CVE List V5
Vulnerability Title
MetaCPAN IO::Compress::Brotli 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MetaCPAN IO::Compress::Brotli是MetaCPAN基金会的一个库。 MetaCPAN IO::Compress::Brotli 0.007之前版本存在安全漏洞，该漏洞源于嵌入式Brotli库存在缓冲区溢出，可能导致崩溃。
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
TIMLEGGE IO::Compress::Brotli 0 ~ 0.007 -

II. Public POCs for CVE-2020-36846

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III. Intelligence Information for CVE-2020-36846

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Patches & Fixes for CVE-2020-36846 (1)

IV. Related Vulnerabilities

Same vendor: TIMLEGGE
Same weakness: CWE-1395

V. Comments for CVE-2020-36846

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