UBUNTU-CVE-2019-9796

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UBUNTU-CVE-2019-9796

Summary:

Details: 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.

References: https://ubuntu.com/security/CVE-2019-9796, https://www.mozilla.org/en-US/security/advisories/mfsa2019-08/#CVE-2019-9796, https://www.mozilla.org/en-US/security/advisories/mfsa2019-07/#CVE-2019-9796, https://www.mozilla.org/en-US/security/advisories/mfsa2019-11/#CVE-2019-9796, https://ubuntu.com/security/notices/USN-3918-1, https://ubuntu.com/security/notices/USN-3918-2, https://ubuntu.com/security/notices/USN-3927-1, https://www.cve.org/CVERecord?id=CVE-2019-9796