What’s Vulnerable › Vulnerabilities

CVE-2022-38171

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-08-22 · updated 2026-06-17
• Weakness: CWE-190

Description

Xpdf prior to version 4.04 contains an integer overflow in the JBIG2 decoder (JBIG2Stream::readTextRegionSeg() in JBIG2Stream.cc). Processing a specially crafted PDF file or JBIG2 image could lead to a crash or the execution of arbitrary code. This is similar to the vulnerability described by CVE-2021-30860 (Apple CoreGraphics).

Affected products

• poppler: before 22.09.0 — fixed in 22.09.0
• Xpdf: 4.04

How to fix

Upgrade to a fixed version: poppler 22.09.0. Check the vendor advisory for mitigations.

References

• http://www.openwall.com/lists/oss-security/2022/09/02/11
• http://www.xpdfreader.com/security-fixes.html
• https://dl.xpdfreader.com/xpdf-4.04.tar.gz
• https://github.com/jeffssh/CVE-2021-30860
• https://github.com/zmanion/Vulnerabilities/blob/main/CVE-2022-38171.md
• https://googleprojectzero.blogspot.com/2021/12/a-deep-dive-into-nso-zero-click.html
• https://www.cve.org/CVERecord?id=CVE-2021-30860
• http://www.openwall.com/lists/oss-security/2022/09/02/11
• http://www.xpdfreader.com/security-fixes.html
• https://dl.xpdfreader.com/xpdf-4.04.tar.gz
• https://github.com/jeffssh/CVE-2021-30860
• https://github.com/zmanion/Vulnerabilities/blob/main/CVE-2022-38171.md

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