| Name | CVE-2015-4050 |
| Description | FragmentListener in the HttpKernel component in Symfony 2.3.19 through 2.3.28, 2.4.9 through 2.4.10, 2.5.4 through 2.5.11, and 2.6.0 through 2.6.7, when ESI or SSI support enabled, does not check if the _controller attribute is set, which allows remote attackers to bypass URL signing and security rules by including (1) no hash or (2) an invalid hash in a request to /_fragment. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-3276-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| symfony (PTS) | buster | 3.4.22+dfsg-2+deb10u1 | fixed |
| buster (security) | 3.4.22+dfsg-2+deb10u3 | fixed | |
| bullseye | 4.4.19+dfsg-2+deb11u4 | fixed | |
| bookworm | 5.4.23+dfsg-1+deb12u1 | fixed | |
| sid, trixie | 6.4.6+dfsg-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| symfony | source | jessie | 2.3.21+dfsg-4+deb8u1 | DSA-3276-1 | ||
| symfony | source | (unstable) | 2.7.0~beta2+dfsg-2 |
https://github.com/fabpot/symfony/commit/d320d27699abcea12479cf608908fa91bcc133d4
http://symfony.com/blog/cve-2015-4050-esi-unauthorized-access