Under certain circumstances the "fetch()" API can return transient local copies of resources that were sent with a "no-store" or "no-cache" cache header instead of downloading a copy from the network as it should. This can result in previously stored, locally cached data of a website being accessible to users if they share a common profile while browsing. This vulnerability affects Firefox ESR < 52.7 and Firefox < 59.
| Software | From | Fixed in |
|---|---|---|
| debian / debian_linux | 8.0 | 8.0.x |
| debian / debian_linux | 7.0 | 7.0.x |
| debian / debian_linux | 9.0 | 9.0.x |
| mozilla / firefox | - | 59.0 |
| redhat / enterprise_linux_desktop | 7.0 | 7.0.x |
| redhat / enterprise_linux_workstation | 7.0 | 7.0.x |
| redhat / enterprise_linux_server | 7.0 | 7.0.x |
| redhat / enterprise_linux_desktop | 6.0 | 6.0.x |
| redhat / enterprise_linux_server | 6.0 | 6.0.x |
| redhat / enterprise_linux_workstation | 6.0 | 6.0.x |
| redhat / enterprise_linux_server_aus | 7.4 | 7.4.x |
| redhat / enterprise_linux_server_eus | 7.4 | 7.4.x |
| redhat / enterprise_linux_server_eus | 7.5 | 7.5.x |
| canonical / ubuntu_linux | 16.04 | 16.04.x |
| canonical / ubuntu_linux | 14.04 | 14.04.x |
| canonical / ubuntu_linux | 17.10 | 17.10.x |
| mozilla / firefox | - | 52.7.0 |