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. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.

Affected

Mozilla · Firefox · Firefox ESR · Thunderbird

CVSS v3.0 NVD

9.1 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CVSS v2.0 NVD

6.4 MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:P

EPSS

3.04% chance of exploitation in the next 30 days, 87th percentile

Published

2018-06-11

Updated

2024-08-05

Proof-of-concept exploits (1)

• https://bugzilla.mozilla.org/show_bug.cgi?id=1368490

Security advisories

• https://www.mozilla.org/security/advisories/mfsa2017-15
• https://www.mozilla.org/security/advisories/mfsa2017-16
• https://www.mozilla.org/security/advisories/mfsa2017-17
• http://www.securityfocus.com/bid/99057
• http://www.securitytracker.com/id/1038689
• https://access.redhat.com/errata/RHSA-2017:1440
• https://access.redhat.com/errata/RHSA-2017:1561
• https://www.debian.org/security/2017/dsa-3881
• https://www.debian.org/security/2017/dsa-3918

References

• CVE Record
• NVD entry