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CVE-2023-0645— Out of Bounds read in libjxl

Quick assessment

Affected
Libjxl Libjxl
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.

libjxl是一个PEG XL（编码器和解码器）的参考实现。 libjxl 0.8.1之前版本存在安全漏洞，该漏洞源于存在越界读取，攻击者利用该漏洞可以使用特制文件导致越界读取。

CVSS 5.3 · Medium EPSS 0.85% · P57

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 1

VendorProduct Version RangeStatus
Libjxl Libjxl 0.7.0< 0.8.1 affected
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I. Basic Information for CVE-2023-0645

Vulnerability Information
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Vulnerability Title
Out of Bounds read in libjxl
Source: CVE Program / CVE List V5
Vulnerability Description
An out of bounds read exists in libjxl. An attacker using a specifically crafted file could cause an out of bounds read in the exif handler. We recommend upgrading to version 0.8.1 or past commit  https://github.com/libjxl/libjxl/pull/2101/commits/d95b050c1822a5b1ede9e0dc937e43fca1b10159 https://github.com/libjxl/libjxl/pull/2101/commits/d95b050c1822a5b1ede9e0dc937e43fca1b10159
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
libjxl 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libjxl是一个PEG XL（编码器和解码器）的参考实现。 libjxl 0.8.1之前版本存在安全漏洞，该漏洞源于存在越界读取，攻击者利用该漏洞可以使用特制文件导致越界读取。
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
Libjxl Libjxl 0.7.0 ~ 0.8.1 -

II. Public POCs for CVE-2023-0645

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III. Intelligence Information for CVE-2023-0645

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Patches & Fixes for CVE-2023-0645 (2)

IV. Related Vulnerabilities

Same product: Libjxl
Same vendor: Libjxl
Same weakness: CWE-125

V. Comments for CVE-2023-0645

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