Critical severity · published Jun 11, 2018
CVE-2017-7758
An out-of-bounds read vulnerability with the Opus encoder when the number of channels in an audio stream changes while the encoder is in use
9.1
CVSS
3%
EPSS
No
On KEV
Description
An out-of-bounds read vulnerability with the Opus encoder when the number of channels in an audio stream changes while the encoder is in use. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.0% · higher than 87% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 52.2.0; before 54.0 · source: NVD
DL
Debian Linux · Debian
8.0; 9.0 · 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
7.2; 7.3; 7.4; 7.5 · source: NVD
EL
Enterprise Linux Workstation · Redhat
6.0; 7.0 · source: NVD
TH
Thunderbird · Mozilla
before 52.2.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-7758
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-7758
Third Party Advisory
http://www.securityfocus.com/bid/99057
Third Party Advisory
http://www.securitytracker.com/id/1038689
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1440
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1561
Exploit
https://bugzilla.mozilla.org/show_bug.cgi?id=1368490
Third Party Advisory
https://www.debian.org/security/2017/dsa-3881
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