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| author | Kaz Kylheku <kaz@kylheku.com> | 2022-07-30 12:09:51 -0700 |
|---|---|---|
| committer | Kaz Kylheku <kaz@kylheku.com> | 2022-07-30 12:09:51 -0700 |
| commit | 49255506f37ba61514c55b2f8bd6515ba1cae3c3 (patch) | |
| tree | f7e1fefba40b1bfebfcdd35e65f7078e43039242 /eval.c | |
| parent | 9650fbc008dd1aaf10967ef367e5feb08f98937a (diff) | |
| download | txr-49255506f37ba61514c55b2f8bd6515ba1cae3c3.tar.gz txr-49255506f37ba61514c55b2f8bd6515ba1cae3c3.tar.bz2 txr-49255506f37ba61514c55b2f8bd6515ba1cae3c3.zip | |
path-components-safe: tighten /proc check
Attacks are possible via /proc/<pid>/fd/<n> involving
a deleted file, whereby the link target changes from
"/path/to/file" to "/path/to/file (deleted)", which
can be perpetrated by a different user, not related
to process <pid>, who has access to perform
unlink("/path/to/file").
* stdlib/path-test.tl (safe-abs-path): Perform the
pattern check regardless of effective user ID.
* tests/018/path-safe.tl: Test cases adjusted.
Diffstat (limited to 'eval.c')
0 files changed, 0 insertions, 0 deletions