CVE-2018-20751

medium

Published — · Modified —

CVSS v3

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CVSS v2

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VIR risk

5.5

Description

An issue was discovered in crop_page in PoDoFo 0.9.6. For a crafted PDF document, pPage->GetObject()->GetDictionary().AddKey(PdfName("MediaBox"),var) can be problematic due to the function GetObject() being called for the pPage NULL pointer object. The value of pPage at this point is 0x0, which causes a NULL pointer dereference.

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2018-20751

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2018-20751.html

vendor Authored 2026-05-27

Vendor advisory: arch — https://security.archlinux.org/ASA-202101-36

OS impact

OS	Version	Status	Fixed in
arch		fixed	`0.9.7-1`
sles		affected
debian	bookworm	fixed	`0.9.6+dfsg-4`
debian	bullseye	fixed	`0.9.6+dfsg-4`
debian	forky	fixed	`0.9.6+dfsg-4`
debian	sid	fixed	`0.9.6+dfsg-4`
debian	trixie	fixed	`0.9.6+dfsg-4`

References

Verify integrity in audit chain (admin only). AS-IS.