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Merge pull request #31365 from andir/fix-cvs-CVE-2017-12836

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cvs: fix CVE-2017-12836
This commit is contained in:
Tim Steinbach 2017-11-07 17:12:15 +00:00 committed by GitHub
commit cbd458a1b1
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2 changed files with 30 additions and 0 deletions
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29
pkgs/applications/version-management/cvs/CVE-2017-12836.patch Normal file
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@ -0,0 +1,29 @@
--- a/src/rsh-client.c.orig 2005-10-02 17:17:21.000000000 +0200
+++ b/src/rsh-client.c 2017-11-07 16:56:06.957370469 +0100
@@ -53,7 +53,7 @@
char *cvs_server = (root->cvs_server != NULL
? root->cvs_server : getenv ("CVS_SERVER"));
int i = 0;
- /* This needs to fit "rsh", "-b", "-l", "USER", "host",
+ /* This needs to fit "rsh", "-b", "-l", "USER", "--", "host",
"cmd (w/ args)", and NULL. We leave some room to grow. */
char *rsh_argv[10];
@@ -97,6 +97,9 @@
rsh_argv[i++] = root->username;
}
+ /* Only non-option arguments from here. (CVE-2017-12836) */
+ rsh_argv[i++] = "--";
+
rsh_argv[i++] = root->hostname;
rsh_argv[i++] = cvs_server;
rsh_argv[i++] = "server";
@@ -171,6 +174,7 @@
*p++ = root->username;
}
+ *p++ = "--";
*p++ = root->hostname;
*p++ = command;
*p++ = NULL;

1
pkgs/applications/version-management/cvs/default.nix
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@ -11,6 +11,7 @@ stdenv.mkDerivation {
patches = [
./getcwd-chroot.patch
./CVE-2012-0804.patch
./CVE-2017-12836.patch
];
hardeningDisable = [ "fortify" "format" ];