High severity · published Jun 11, 2018
CVE-2017-5448
An out-of-bounds write in "ClearKeyDecryptor" while decrypting some Clearkey-encrypted media content
8.6
CVSS
2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.0% · higher than 81% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 45.9.0; 52.0 before 52.1.0; before 53.0 · source: NVD
DL
Debian Linux · Debian
7.0 · source: NVD
EL
Enterprise Linux · Redhat
6.0; 7.0 · source: NVD
EL
Enterprise Linux Desktop · Redhat
6.0; 7.0 · source: NVD
EL
Enterprise Linux Server · Redhat
6.0; 7.0 · source: NVD
EL
Enterprise Linux Server Aus · Redhat
7.3; 7.4 · source: NVD
EL
Enterprise Linux Server Eus · Redhat
7.3; 7.4; 7.5 · source: NVD
EL
Enterprise Linux Workstation · Redhat
6.0; 7.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-5448
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-5448
Third Party Advisory
http://www.securityfocus.com/bid/97940
Third Party Advisory
http://www.securitytracker.com/id/1038320
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1104
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1106
Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=1346648
Third Party Advisory
https://www.debian.org/security/2017/dsa-3831
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