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author | Jim Meyering <jim@meyering.net> | 2003-07-12 11:31:55 +0000 |
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committer | Jim Meyering <jim@meyering.net> | 2003-07-12 11:31:55 +0000 |
commit | b5125cf5f0752bd25a3aed4026a154af4ab4810c (patch) | |
tree | eee3ab4226af64f5586b3e6063c6c70a5e7ef729 | |
parent | e5e207df7c66045bf4ced0284b7bdc65c48ac93e (diff) | |
download | coreutils-b5125cf5f0752bd25a3aed4026a154af4ab4810c.tar.xz |
*** empty log message ***
-rw-r--r-- | NEWS | 10 |
1 files changed, 10 insertions, 0 deletions
@@ -5,6 +5,16 @@ GNU coreutils NEWS -*- outline -*- - new program: `[' (much like `test') ** New features +- chown no longer tries to preserve set-user-ID and set-group-ID bits; + on some systems, the chown syscall resets those bits, and previous + versions of the chown command would call chmod to restore the original, + pre-chown(2) settings, but that behavior is problematic. + 1) There was a window whereby a malicious user, M, could subvert a + chown command run by some other user and operating on files in a + directory where M has write access. + 2) Before (and even now, on systems with chown(2) that doesn't reset + those bits), an unwary admin. could use chown unwittingly to create e.g., + a set-user-ID root copy of /bin/sh. - head now accepts --lines=-N (--bytes=-N) to print all but the N lines (bytes) at the end of the file - md5sum --check now accepts the output of the BSD md5sum program, e.g., |