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…

PriorityP339high8.1CVSS 3.1

AVNACHPRNUINSUCHIHAH

EPSS

1.34%

68.1th percentile

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.

Affected

19 ranges

Vendor	Product	Version range	Fixed in
debian	symfony	< symfony 4.3.8+dfsg-1 (bookworm)	symfony 4.3.8+dfsg-1 (bookworm)
fedoraproject	fedora	—	—
fedoraproject	fedora	—	—
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	—
symfony	http-kernel	>= 2.2.0 < 2.8.52	2.8.52
symfony	http-kernel	>= 3.0.0 < 3.4.35	3.4.35
symfony	http-kernel	>= 4.0.0 < 4.2.12	4.2.12
symfony	http-kernel	>= 4.3.0 < 4.3.8	4.3.8
symfony	symfony	>= 0 < 4.3.8+dfsg-1	4.3.8+dfsg-1
symfony	symfony	>= 0 < 4.3.8+dfsg-1	4.3.8+dfsg-1
symfony	symfony	>= 0 < 4.3.8+dfsg-1	4.3.8+dfsg-1
symfony	symfony	>= 0 < 4.3.8+dfsg-1	4.3.8+dfsg-1
symfony	symfony	>= 2.2.0 < 2.8.52	2.8.52
symfony	symfony	>= 3.0.0 < 3.4.35	3.4.35
symfony	symfony	>= 4.0.0 < 4.2.12	4.2.12
symfony	symfony	>= 4.3.0 < 4.3.8	4.3.8

CVSS provenance

nvdv3.18.1HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P

osv8.1HIGH

vendor_debian8.1HIGH

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.