On Windows systems, the logger run by the Windows updater deletes the file "update.log" before it runs in order to write a new log of that name. The path to this file is supplied at the command line to the updater and could be used in concert with another local exploit to delete a different file named "update.log" instead of the one intended. Note: This attack only affects Windows operating systems. Other operating systems are not affected. This vulnerability affects Firefox < 55.
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
| Link | Tags |
|---|---|
| https://www.mozilla.org/security/advisories/mfsa2017-18/ | vendor advisory |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1234401 | patch vendor advisory issue tracking |
| http://www.securitytracker.com/id/1039124 | third party advisory vdb entry |