vulnwire
8.6high

CVE-2017-5448

An out-of-bounds write in "ClearKeyDecryptor" while decrypting some Clearkey-encrypted media content.

Published 8 y ago · modified 4 mo ago · JSON

CVSS
8.6
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
2.0%
percentile 81%
Public exploits
0
none known

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.

Exploit prediction (EPSS)

2.02% probability of exploitation in the next 30 days, higher than 81% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.08.6CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
NVD2.07.5AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • Mozilla Firefox ESR
  • Mozilla Firefox

Classification

Weakness

References

  • access.redhat.com /errata/RHSA-2017:1106 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • mozilla.org /security/advisories/mfsa2017-12/ · x_refsource_CONFIRM, x_transferred
  • mozilla.org /security/advisories/mfsa2017-11/ · x_refsource_CONFIRM, x_transferred
  • mozilla.org /security/advisories/mfsa2017-10/ · x_refsource_CONFIRM, x_transferred
  • securityfocus.com /bid/97940 · vdb-entry, x_refsource_BID, x_transferred
  • debian.org /security/2017/dsa-3831 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • securitytracker.com /id/1038320 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • access.redhat.com /errata/RHSA-2017:1104 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • bugzilla.mozilla.org /show_bug.cgi?id=1346648 · x_refsource_CONFIRM, x_transferred

Sources

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