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Out-of-bounds Write Affecting firefox-esr package, versions <45.9.0esr-1~deb8u1

Severity

 Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
1.15% (86th percentile)

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  • Snyk IDSNYK-DEBIAN8-FIREFOXESR-354766
  • published11 Jun 2018
  • disclosed11 Jun 2018
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Introduced: 11 Jun 2018

CVE-2017-5448  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Debian:8 firefox-esr to version 45.9.0esr-1~deb8u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox-esr package and not the firefox-esr package as distributed by Debian. See How to fix? for Debian:8 relevant fixed versions and status.

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.