Descriptionpypdf is an open source, pure-python PDF library. In affected versions an attacker may craft a PDF which leads to an infinite loop if `__parse_content_stream` is executed. That is, for example, the case if the user extracted text from such a PDF. This issue was introduced in pull request #969 and resolved in pull request #1828. Users are advised to upgrade. Users unable to upgrade may modify the line `while peek not in (b"\r", b"\n")` in `pypdf/generic/` to `while peek not in (b"\r", b"\n", b"")`.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs1040338, 1040339

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
pypdf (PTS)sid, trixie, bookworm3.4.1-1vulnerable
pypdf2 (PTS)buster1.26.0-2fixed
buster (security)1.26.0-2+deb10u2fixed
sid, trixie, bookworm2.12.1-3vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
pypdf2sourcebuster(not affected)
pypdf2sourcebullseye(not affected)


[bookworm] - pypdf <no-dsa> (Minor issue)
[bookworm] - pypdf2 <no-dsa> (Minor issue)
[bullseye] - pypdf2 <not-affected> (Vulnerable code not present)
[buster] - pypdf2 <not-affected> (Vulnerable code not present)
Introduced with: (2.2.0)
Fixed with:
Fixed by: (3.9.0)

Search for package or bug name: Reporting problems