CVE-2019-9815
Apple macOS Hyperthreading Speculative Execution Timing Attack Vulnerability
Description
If hyperthreading is not disabled, a timing attack vulnerability exists, similar to previous Spectre attacks. Apple has shipped macOS 10.14.5 with an option to disable hyperthreading in applications running untrusted code in a thread through a new sysctl. Firefox now makes use of it on the main thread and any worker threads. *Note: users need to update to macOS 10.14.5 in order to take advantage of this change.*. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.
INFO
Published Date :
July 23, 2019, 2:15 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-2019-9815
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 | MEDIUM | [email protected] | ||||
| CVSS 3.0 | HIGH | [email protected] |
Solution
- Upgrade Mozilla Firefox to version 67.0 or later.
- Upgrade Mozilla Firefox ESR to version 60.7 or later.
- Update Mozilla Thunderbird to version 60.7 or later.
- Apply the relevant vendor security patches.
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-2019-9815.
| URL | Resource |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1546544 | Permissions Required Third Party Advisory |
| https://mdsattacks.com/ | Third Party Advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-13/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-14/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-15/ | Vendor Advisory |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1546544 | Permissions Required Third Party Advisory |
| https://mdsattacks.com/ | Third Party Advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-13/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-14/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-15/ | 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-2019-9815 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-2019-9815
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-2019-9815 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-9815 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://bugzilla.mozilla.org/show_bug.cgi?id=1546544 Added Reference https://mdsattacks.com/ Added Reference https://www.mozilla.org/security/advisories/mfsa2019-13/ Added Reference https://www.mozilla.org/security/advisories/mfsa2019-14/ Added Reference https://www.mozilla.org/security/advisories/mfsa2019-15/ -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CPE Deprecation Remap by [email protected]
Sep. 08, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:apple:mac_os:-:*:*:*:*:*:*:* OR *cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* -
CWE Remap by [email protected]
Aug. 24, 2020
Action Type Old Value New Value Changed CWE CWE-362 CWE-203 -
Initial Analysis by [email protected]
Jul. 29, 2019
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:M/Au:N/C:P/I:P/A:P) Added CVSS V3 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://bugzilla.mozilla.org/show_bug.cgi?id=1546544 No Types Assigned https://bugzilla.mozilla.org/show_bug.cgi?id=1546544 Permissions Required, Third Party Advisory Changed Reference Type https://mdsattacks.com/ No Types Assigned https://mdsattacks.com/ Third Party Advisory Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2019-13/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2019-13/ Vendor Advisory Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2019-14/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2019-14/ Vendor Advisory Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2019-15/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2019-15/ Vendor Advisory Added CWE CWE-362 Added CPE Configuration AND OR *cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* versions up to (excluding) 67.0 *cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* versions up to (excluding) 60.7 *cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* versions up to (excluding) 60.7 OR cpe:2.3:o:apple:mac_os:-:*:*:*:*:*:*:*
Vulnerability Scoring Details
Base CVSS Score: 8.1
Base CVSS Score: 6.8
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.02 }} -1.08%
score
0.75214
percentile