CVE-2019-9796

Impact:
Important
Public Date:
2019-03-20
CWE:
CWE-416
Bugzilla:
1690681: CVE-2019-9796 Mozilla: Use-after-free with SMIL animation controller

The MITRE CVE dictionary describes this issue as:

A use-after-free vulnerability can occur when the SMIL animation controller incorrectly registers with the refresh driver twice when only a single registration is expected. When a registration is later freed with the removal of the animation controller element, the refresh driver incorrectly leaves a dangling pointer to the driver's observer array. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.

Find out more about CVE-2019-9796 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v3 metrics

CVSS3 Base Score 7.5
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity Impact High
Availability Impact High

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 6 (thunderbird) RHSA-2019:0680 2019-03-28
Red Hat Enterprise Linux 6 (firefox) RHSA-2019:0623 2019-03-20
Red Hat Enterprise Linux 7 (thunderbird) RHSA-2019:0681 2019-03-28
Red Hat Enterprise Linux 7 (firefox) RHSA-2019:0622 2019-03-20
Red Hat Enterprise Linux 8 (thunderbird) RHSA-2019:1144 2019-05-13
Red Hat Enterprise Linux 8 (firefox) RHSA-2019:0966 2019-05-07

Acknowledgements

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Nils as the original reporter.

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation