This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2021-3902 →

DEBIAN-CVE-2021-3902

An improper restriction of external entities (XXE) vulnerability in dompdf/dompdf's SVG parser allows for Server-Side Request Forgery (SSRF) and deser...

Original description

The description as published by the source.

An improper restriction of external entities (XXE) vulnerability in dompdf/dompdf's SVG parser allows for Server-Side Request Forgery (SSRF) and deserialization attacks. This issue affects all versions prior to 2.0.0. The vulnerability can be exploited even if the isRemoteEnabled option is set to false. It allows attackers to perform SSRF, disclose internal image files, and cause PHAR deserialization attacks.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 php-dompdf

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.2+dfsg-1"}]}]

References

advisory security-tracker.debian.org