CVE-2024-7868— Uninitialized variable in Xpdf 4.05 due to invalid JPEG header
Quick assessment
Affected
Xpdf Xpdf
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.
Xpdf是Xpdf公司的一个免费的 PDF 查看器和工具包，包括文本提取器、图像转换器、HTML 转换器等。 Xpdf 4.05版本及之前版本存在安全漏洞，该漏洞源于DCT（JPEG）流中的无效标头信息可能导致 DCT 解码器中的变量未初始化。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2024-7868
Vulnerability Information
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Vulnerability Title
Uninitialized variable in Xpdf 4.05 due to invalid JPEG header
Source: CVE Program / CVE List V5
Vulnerability Description
In Xpdf 4.05 (and earlier), invalid header info in a DCT (JPEG) stream can lead to an uninitialized variable in the DCT decoder. The proof-of-concept PDF file causes a segfault attempting to read from an invalid address.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用未经初始化的变量
Source: CVE Program / CVE List V5
Vulnerability Title
Xpdf 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Xpdf是Xpdf公司的一个免费的 PDF 查看器和工具包，包括文本提取器、图像转换器、HTML 转换器等。 Xpdf 4.05版本及之前版本存在安全漏洞，该漏洞源于DCT（JPEG）流中的无效标头信息可能导致 DCT 解码器中的变量未初始化。
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
II. Public POCs for CVE-2024-7868
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2024-7868 (1)
Same Patch Batch · Xpdf · 2024-08-15 · 3 CVEs total
| CVE-2024-7866 | Stack overflow in Xpdf 4.05 due to object loop in PDF pattern | |
| CVE-2024-7867 | Integer overflow and divide-by-zero in Xpdf 4.05 due to bogus page box coordinates |
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Same weakness: CWE-457
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V. Comments for CVE-2024-7868
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