CVE-2019-18887

NameCVE-2019-18887
DescriptionAn 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-1999-1, DSA-4573-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
symfony (PTS)buster3.4.22+dfsg-2+deb10u1fixed
buster (security)3.4.22+dfsg-2+deb10u3fixed
bullseye4.4.19+dfsg-2+deb11u4fixed
bookworm5.4.23+dfsg-1+deb12u1fixed
sid, trixie6.4.7+dfsg-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
symfonysourcejessie2.3.21+dfsg-4+deb8u6DLA-1999-1
symfonysourcestretch2.8.7+dfsg-1.3+deb9u3DSA-4573-1
symfonysourcebuster3.4.22+dfsg-2+deb10u1DSA-4573-1
symfonysource(unstable)4.3.8+dfsg-1

Notes

https://symfony.com/blog/cve-2019-18887-use-constant-time-comparison-in-urisigner
https://github.com/symfony/symfony/commit/cccefe6a7f12e776df0665aeb77fe9294c285fbb

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