When resolving a symlink such as <code>file:///proc/self/fd/1</code>, an error message may be produced where the symlink was resolved to a string containing unitialized memory in the buffer. <br>*This bug only affects Thunderbird on Unix-based operated systems (Android, Linux, MacOS). Windows is unaffected.*. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.
| Link | Tags |
|---|---|
| https://www.mozilla.org/security/advisories/mfsa2022-47/ | vendor advisory |
| https://www.mozilla.org/security/advisories/mfsa2022-49/ | vendor advisory |
| https://www.mozilla.org/security/advisories/mfsa2022-48/ | vendor advisory |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1791029 | issue tracking permissions required vendor advisory |