CVE-2018-18456

low-risk

Published 2018-10-18

The function Object::isName() in Object.h (called from Gfx::opSetFillColorN) in Xpdf 4.00 allows remote attackers to cause a denial of service (stack-based buffer over-read) via a crafted pdf file, as demonstrated by pdftoppm.

Do I need to act?

0.53% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 5.5/10 Medium

LOCAL / LOW complexity

Affected Products (1)

Xpdf

Affected Vendors

Xpdfreader

References (4)

Third Party Advisory https://forum.xpdfreader.com/viewtopic.php?f=3&t=41217

Third Party Advisory https://github.com/TeamSeri0us/pocs/tree/master/xpdf/2018_10_16/pdftoppm

Third Party Advisory https://forum.xpdfreader.com/viewtopic.php?f=3&t=41217

Third Party Advisory https://github.com/TeamSeri0us/pocs/tree/master/xpdf/2018_10_16/pdftoppm

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low-risk

Severity 18/34 · Moderate

Exploitability 2/34 · Minimal

Exposure 5/34 · Minimal