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Fencer Intel
high 7.8

CVE-2018-12983 json

A stack-based buffer over-read in the PdfEncryptMD5Base::ComputeEncryptionKey() function in PdfEncrypt.cpp in PoDoFo 0.9.6-rc1 could be lev…

published 8y ago modified 4mo ago also EUVD-2018-4934

cvss
7.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 62%
public exploits
0
none known

Summary

A stack-based buffer over-read in the PdfEncryptMD5Base::ComputeEncryptionKey() function in PdfEncrypt.cpp in PoDoFo 0.9.6-rc1 could be leveraged by remote attackers to cause a denial-of-service via a crafted pdf file.

Patch / fix

  • libpodofo Debian 14, Debian 13, Debian 12 0.9.8+dfsg-2

debian advisories DEBIAN-CVE-2018-12983

  • libpodofo Ubuntu Pro 14.04 LTS 0.9.0-1.2ubuntu0.1~esm3
  • libpodofo Ubuntu Pro 16.04 LTS 0.9.3-4ubuntu0.1~esm1
  • libpodofo Ubuntu Pro 18.04 LTS 0.9.5-9ubuntu0.1~esm1
  • libpodofo Ubuntu Pro 20.04 LTS 0.9.6+dfsg-5ubuntu0.1~esm1
  • libpodofo Ubuntu Pro 22.04 LTS 0.9.7+dfsg-3ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2018-12983

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • podofo openSUSE Leap 15.4, openSUSE Leap 15.3 0.9.6-150300.3.6.1
  • podofo SLE Workstation Extension 12 SP5, SLE Software Development Kit 12 SP5 0.9.2-3.15.1

suse advisories SUSE-SU-2022:3833-1SUSE-SU-2022:3385-1

  • podofo-0_10 openSUSE Tumbleweed 0.10.5-1.1
  • podofo openSUSE Tumbleweed 0.9.7-3.1

opensuse advisories openSUSE-SU-2025:15521-1openSUSE-SU-2024:11855-1

  • podofo Alpine 3.24, Alpine 3.23, Alpine 3.22 +9 more 0.9.6-r0

alpine advisories ALPINE-CVE-2018-12983

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

Is CVE-2018-12983 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2018-12983 updated cvss 4.3

podofo: stack-based buffer over-read in the PdfEncryptMD5Base::ComputeEncryptionKey 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

0.97% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=1595693 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 7.8 CVSS:3.0/AV:L/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 Intel 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.