CVE-2019-18887
HIGHCVSS 8.1/10EPSS 1.34%
Last modified
CVE-2019-18887 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. An issue was discovered in Symfony 2.8.0 through 2.8.50, 3.4.0 through 3.4.34, 4.2.0 through 4.2.11, and 4.3.0 through 4.3.7. The UriSigner was subject to timing attacks. EPSS estimates a 1.34% chance of exploitation in the next 30 days.
Description
An issue was discovered in Symfony 2.8.0 through 2.8.50, 3.4.0 through 3.4.34, 4.2.0 through 4.2.11, and 4.3.0 through 4.3.7. The UriSigner was subject to timing attacks. This is related to symfony/http-kernel.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Sensiolabs | Symfony | >= 2.8.0, <= 2.8.50 |
| Sensiolabs | Symfony | >= 3.4.0, <= 3.4.34 |
| Sensiolabs | Symfony | >= 4.2.0, <= 4.2.11 |
| Sensiolabs | Symfony | >= 4.3.0, <= 4.3.7 |
| Fedoraproject | Fedora | 30 |
| Fedoraproject | Fedora | 31 |
References
- https://symfony.com/blog/symfony-4-3-8-releasedRelease Notes
- https://symfony.com/blog/symfony-4-3-8-releasedRelease Notes
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-18887?
An issue was discovered in Symfony 2.8.0 through 2.8.50, 3.4.0 through 3.4.34, 4.2.0 through 4.2.11, and 4.3.0 through 4.3.7. The UriSigner was subject to timing attacks. This is related to symfony/http-kernel.
How severe is CVE-2019-18887?
CVE-2019-18887 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 1.34% probability of exploitation in the next 30 days.
How do I fix CVE-2019-18887?
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-2019-18887?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST