CVE-2017-5448

Name: CVE-2017-5448
Creator: NVD / NIST
Published: 2018-06-11T21:29:06.453+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.08%

Last modified Jun 17, 2026

CVE-2017-5448 is a vulnerability of currently unknown severity. An out-of-bounds write in "ClearKeyDecryptor" while decrypting some Clearkey-encrypted media content. The "ClearKeyDecryptor" code runs within the Gecko Media Plugin (GMP) sandbox. EPSS estimates a 2.08% chance of exploitation in the next 30 days.

Description

An out-of-bounds write in "ClearKeyDecryptor" while decrypting some Clearkey-encrypted media content. The "ClearKeyDecryptor" code runs within the Gecko Media Plugin (GMP) sandbox. If a second mechanism is found to escape the sandbox, this vulnerability allows for the writing of arbitrary data within memory, resulting in a potentially exploitable crash. This vulnerability affects Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.

Metrics

EPSS Probability

2.08%

79.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Debian	Debian Linux	7.0
Redhat	Enterprise Linux	6.0
Redhat	Enterprise Linux	7.0
Redhat	Enterprise Linux Desktop	6.0
Redhat	Enterprise Linux Desktop	7.0
Redhat	Enterprise Linux Server	6.0
Redhat	Enterprise Linux Server	7.0
Redhat	Enterprise Linux Server Aus	7.3
Redhat	Enterprise Linux Server Aus	7.4
Redhat	Enterprise Linux Server Eus	7.3
Redhat	Enterprise Linux Server Eus	7.4
Redhat	Enterprise Linux Server Eus	7.5
Redhat	Enterprise Linux Workstation	6.0
Redhat	Enterprise Linux Workstation	7.0
Mozilla	Firefox	< 45.9.0
Mozilla	Firefox	>= 52.0, < 52.1.0
Mozilla	Firefox	< 53.0

References

http://www.securityfocus.com/bid/97940Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1038320Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2017:1104Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1106Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1346648Issue Tracking, Vendor Advisory
https://www.debian.org/security/2017/dsa-3831Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2017-10/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-11/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-12/Vendor Advisory
http://www.securityfocus.com/bid/97940Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1038320Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2017:1104Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1106Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1346648Issue Tracking, Vendor Advisory
https://www.debian.org/security/2017/dsa-3831Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2017-10/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-11/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-12/Vendor Advisory

Timeline

Published: Jun 11, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-5448?

How severe is CVE-2017-5448?

Severity scoring for CVE-2017-5448 is pending analysis. The EPSS model estimates a 2.08% probability of exploitation in the next 30 days.

How do I fix CVE-2017-5448?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-5448?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST