diff options
Diffstat (limited to 'poky/meta/recipes-core/coreutils/coreutils/CVE-2017-18018-2.patch')
-rw-r--r-- | poky/meta/recipes-core/coreutils/coreutils/CVE-2017-18018-2.patch | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/poky/meta/recipes-core/coreutils/coreutils/CVE-2017-18018-2.patch b/poky/meta/recipes-core/coreutils/coreutils/CVE-2017-18018-2.patch deleted file mode 100644 index c8f5f54ac..000000000 --- a/poky/meta/recipes-core/coreutils/coreutils/CVE-2017-18018-2.patch +++ /dev/null @@ -1,83 +0,0 @@ -From bc2fd9796403e03bb757b064d44c22fab92e6842 Mon Sep 17 00:00:00 2001 -From: Michael Orlitzky <michael@orlitzky.com> -Date: Thu, 4 Jan 2018 11:38:21 -0500 -Subject: doc: warn about following symlinks recursively in chown/chgrp - -In both chown and chgrp (which shares its code with chown), operating -on symlinks recursively has a window of vulnerability where the -destination user or group can change the target of the operation. -Warn about combining the --dereference, --recursive, and -L flags. - -* doc/coreutils.texi (warnOptDerefWithRec): Add macro. -(node chown invocation): Add it to --dereference and -L. -(node chgrp invocation): Likewise. - -See also: CVE-2017-18018 -CVE: CVE-2017-18018 -Upstream-Status: Backport from v8.30 - -Signed-off-by: Michael Orlitzky <michael@orlitzky.com> -Signed-off-by: Jagadeesh Krishnanjanappa <jkrishnanjanappa@mvista.com> ---- - doc/coreutils.texi | 17 +++++++++++++++++ - 1 file changed, 17 insertions(+) - -diff --git a/doc/coreutils.texi b/doc/coreutils.texi -index 6bb9f09..9f5f95b 100644 ---- a/doc/coreutils.texi -+++ b/doc/coreutils.texi -@@ -1428,6 +1428,19 @@ a command line argument is a symbolic link to a directory, traverse it. - In a recursive traversal, traverse every symbolic link to a directory - that is encountered. - @end macro -+ -+@c Append the following warning to -L where appropriate (e.g. chown). -+@macro warnOptDerefWithRec -+ -+Combining this dereferencing option with the @option{--recursive} option -+may create a security risk: -+During the traversal of the directory tree, an attacker may be able to -+introduce a symlink to an arbitrary target; when the tool reaches that, -+the operation will be performed on the target of that symlink, -+possibly allowing the attacker to escalate privileges. -+ -+@end macro -+ - @choptL - - @macro choptP -@@ -10995,6 +11008,7 @@ chown -h -R --from=OLDUSER NEWUSER / - @findex lchown - Do not act on symbolic links themselves but rather on what they point to. - This is the default when not operating recursively. -+@warnOptDerefWithRec - - @item -h - @itemx --no-dereference -@@ -11051,6 +11065,7 @@ Recursively change ownership of directories and their contents. - @xref{Traversing symlinks}. - - @choptL -+@warnOptDerefWithRec - @xref{Traversing symlinks}. - - @choptP -@@ -11125,6 +11140,7 @@ changed. - @findex lchown - Do not act on symbolic links themselves but rather on what they point to. - This is the default when not operating recursively. -+@warnOptDerefWithRec - - @item -h - @itemx --no-dereference -@@ -11180,6 +11196,7 @@ Recursively change the group ownership of directories and their contents. - @xref{Traversing symlinks}. - - @choptL -+@warnOptDerefWithRec - @xref{Traversing symlinks}. - - @choptP --- -cgit v1.0-41-gc330 - |