This project might be open to known security vulnerabilities, which can be prevented by tightening the version range of affected dependencies. Find detailed information at the bottom.
Unix-like operating systems may segfault due to dereferencing a dangling pointer in specific circumstances. This requires an environment variable to be set in a different thread than the affected functions. This may occur without the user's knowledge, notably in a third-party library.
In affected versions, after a Report is constructed using wrap_err or
wrap_err_with to attach a message of type D onto an error of type E, then
using downcast to recover ownership of either the value of type D or the
value of type E, one of two things can go wrong:
If downcasting to E, there remains a value of type D to be dropped. It is
incorrectly "dropped" by running E's drop behavior, rather than D's. For
example if D is &str and E is std::io::Error, there would be a call of
std::io::Error::drop in which the reference received by the Drop impl does
not refer to a valid value of type std::io::Error, but instead to &str.
If downcasting to D, there remains a value of type E to be dropped. When
D and E do not happen to be the same size, E's drop behavior is
incorrectly executed in the wrong location. The reference received by the
Drop impl may point left or right of the real E value that is meant to be
getting dropped.
In both cases, when the Report contains an error E that has nontrivial drop
behavior, the most likely outcome is memory corruption.
When the Report contains an error E that has trivial drop behavior (for
example a Utf8Error) but where D has nontrivial drop behavior (such as
String), the most likely outcome is that downcasting to E would leak D.
tracing-subscriber: Logging user input may result in poisoning logs with ANSI escape sequences
Previous versions of tracing-subscriber were vulnerable to ANSI escape sequence injection attacks. Untrusted user input containing ANSI escape sequences could be injected into terminal output when logged, potentially allowing attackers to:
Manipulate terminal title bars
Clear screens or modify terminal display
Potentially mislead users through terminal manipulation
In isolation, impact is minimal, however security issues have been found in terminal emulators that enabled an attacker to use ANSI escape sequences via logs to exploit vulnerabilities in the terminal emulator.
This was patched in PR #3368 to escape ANSI control characters from user input.