CVE-2019-17008
HIGHCVSS 8.8/10EPSS 1.88%
Last modified
CVE-2019-17008 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. When using nested workers, a use-after-free could occur during worker destruction. This resulted in a potentially exploitable crash. EPSS estimates a 1.88% chance of exploitation in the next 30 days.
Description
When using nested workers, a use-after-free could occur during worker destruction. This resulted in a potentially exploitable crash. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 71.0 |
| Mozilla | Firefox Esr | < 68.3 |
| Mozilla | Thunderbird | < 68.3 |
| Opensuse | Leap | 15.1 |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00000.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00001.htmlMailing List, Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1546331Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2019-36/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-37/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-38/Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00000.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00001.htmlMailing List, Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1546331Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2019-36/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-37/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-38/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-17008?
When using nested workers, a use-after-free could occur during worker destruction. This resulted in a potentially exploitable crash. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.
How severe is CVE-2019-17008?
CVE-2019-17008 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.88% probability of exploitation in the next 30 days.
How do I fix CVE-2019-17008?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2019-17008?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST