CVE-2019-9796
Thunderbird and Firefox SMIL Animation Use-After-Free Vulnerability
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.
INFO
Published Date :
April 26, 2019, 5:29 p.m.
Last Modified :
Nov. 21, 2024, 4:52 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2019-9796
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | HIGH | [email protected] | ||||
| CVSS 3.0 | CRITICAL | [email protected] |
Solution
- Update Firefox and Thunderbird packages to the latest versions.
- If applicable, use your system's package manager to update.
- For SUSE, use YaST or zypper to apply security updates.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2019-9796.
| URL | Resource |
|---|---|
| https://access.redhat.com/errata/RHSA-2019:0966 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2019:1144 | Third Party Advisory |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1531277 | Issue Tracking Permissions Required Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-07/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-08/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-11/ | Vendor Advisory |
| https://access.redhat.com/errata/RHSA-2019:0966 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2019:1144 | Third Party Advisory |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1531277 | Issue Tracking Permissions Required Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-07/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-08/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-11/ | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-9796 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2019-9796
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-9796 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-9796 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2019:0966 Added Reference https://access.redhat.com/errata/RHSA-2019:1144 Added Reference https://bugzilla.mozilla.org/show_bug.cgi?id=1531277 Added Reference https://www.mozilla.org/security/advisories/mfsa2019-07/ Added Reference https://www.mozilla.org/security/advisories/mfsa2019-08/ Added Reference https://www.mozilla.org/security/advisories/mfsa2019-11/ -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Jun. 26, 2019
Action Type Old Value New Value Changed Reference Type https://access.redhat.com/errata/RHSA-2019:0966 No Types Assigned https://access.redhat.com/errata/RHSA-2019:0966 Third Party Advisory Changed Reference Type https://access.redhat.com/errata/RHSA-2019:1144 No Types Assigned https://access.redhat.com/errata/RHSA-2019:1144 Third Party Advisory Changed CPE Configuration OR *cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* versions up to (excluding) 66.0 *cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* versions up to (excluding) 60.6 *cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* versions up to (excluding) 60.6 OR *cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* versions up to (excluding) 66.0 *cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* versions up to (excluding) 60.6.0 *cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* versions up to (excluding) 60.6.0 -
CVE Modified by [email protected]
May. 13, 2019
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2019:1144 [No Types Assigned] -
CVE Modified by [email protected]
May. 07, 2019
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2019:0966 [No Types Assigned] -
Initial Analysis by [email protected]
Apr. 29, 2019
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2019-08/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2019-08/ Vendor Advisory Changed Reference Type https://bugzilla.mozilla.org/show_bug.cgi?id=1531277 No Types Assigned https://bugzilla.mozilla.org/show_bug.cgi?id=1531277 Issue Tracking, Permissions Required, Vendor Advisory Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2019-11/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2019-11/ Vendor Advisory Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2019-07/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2019-07/ Vendor Advisory Added CWE CWE-416 Added CPE Configuration OR *cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* versions up to (excluding) 66.0 *cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* versions up to (excluding) 60.6 *cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* versions up to (excluding) 60.6
Vulnerability Scoring Details
Base CVSS Score: 9.8
Base CVSS Score: 7.5
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.76 }} -1.70%
score
0.70953
percentile