CVE-2016-9487

EpubCheck 4.0.1 is vulnerable to external XML entity processing attacks

Description

EpubCheck 4.0.1 does not properly restrict resolving external entities when parsing XML in EPUB files during validation. An attacker who supplies a specially crafted EPUB file may be able to exploit this behavior to read arbitrary files, or have the victim execute arbitrary requests on his behalf, abusing the victim's trust relationship with other entities.

Remediation

Solution:

  • EpubCheck has released version 4.0.2 to address the vulnerability.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.13%
Third-Party Advisory cert.org Third-Party Advisory securityfocus.com
Affected: EpubCheck EpubCheck
Published at:
Updated at:

References

Link Tags
https://www.kb.cert.org/vuls/id/779243 third party advisory us government resource
https://www.securityfocus.com/bid/94864/ vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2016-9487?
CVE-2016-9487 has been scored as a high severity vulnerability.
How to fix CVE-2016-9487?
To fix CVE-2016-9487: EpubCheck has released version 4.0.2 to address the vulnerability.
Is CVE-2016-9487 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-9487 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2016-9487?
CVE-2016-9487 affects EpubCheck EpubCheck.
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