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CVE-2019-9796

Public on 2019-04-25
Modified on 2019-04-26
Description

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.

Severity
Important
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CVSS v3 Base Score
9.8
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Core thunderbird 2019-04-25 16:37 ALAS2-2019-1195

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD CVSSv2 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P
NVD CVSSv3 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Red Hat: CVE-2019-9796 Mitre: CVE-2019-9796 FAQs regarding Amazon Linux ALAS/CVE Severity