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Fencer Vulns
high 8.8

CVE-2018-20751 json

An issue was discovered in crop_page in PoDoFo 0.9.6.

published 2019-02-04 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-13294

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 76%
public exploits
0
none known

Summary

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.

Patch / fix

  • libpodofo Debian 14, Debian 13, Debian 12 0.9.6+dfsg-4

debian advisories DEBIAN-CVE-2018-20751

  • podofo SLED 12 SP4, SLE Workstation Extension 12 SP4, SLE Software Development Kit 12 SP4 0.9.2-3.9.2

suse advisories SUSE-SU-2019:1849-1

  • podofo-0_10 openSUSE Tumbleweed 0.10.5-1.1
  • podofo openSUSE Tumbleweed 0.9.7-2.2

opensuse advisories openSUSE-SU-2025:15521-1openSUSE-SU-2024:11178-1

  • podofo Alpine 3.24, Alpine 3.23, Alpine 3.22 +9 more 0.9.7-r0

alpine advisories ALPINE-CVE-2018-20751

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • podofo Arch Linux 0.9.7-1

arch linux advisories AVG-867

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-20751 updated cvss 6.5

podofo: null pointer dereference in crop_page function

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.64% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • research.loginsoft.com https://research.loginsoft.com/bugs/null-pointer-dereference-vulnerability-in-crop_page-podofo-0-9-6/ referenced PoC, tagged "exploit" by a source, unverified
  • sourceforge.net https://sourceforge.net/p/podofo/tickets/33/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 8.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.