diff options
Diffstat (limited to 'gnu/packages/patches/util-linux-CVE-2017-2616.patch')
| -rw-r--r-- | gnu/packages/patches/util-linux-CVE-2017-2616.patch | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/gnu/packages/patches/util-linux-CVE-2017-2616.patch b/gnu/packages/patches/util-linux-CVE-2017-2616.patch new file mode 100644 index 0000000000..2c82fb06d2 --- /dev/null +++ b/gnu/packages/patches/util-linux-CVE-2017-2616.patch @@ -0,0 +1,65 @@ +Fix CVE-2017-2616: + +https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-2616 +http://seclists.org/oss-sec/2017/q1/474 + +Patch copied from upstream source repository: + +https://git.kernel.org/cgit/utils/util-linux/util-linux.git/commit/?id=dffab154d29a288aa171ff50263ecc8f2e14a891 + +From b018571132cb8c9fece3d75ed240cc74cdb5f0f7 Mon Sep 17 00:00:00 2001 +From: Karel Zak <kzak@redhat.com> +Date: Wed, 1 Feb 2017 11:58:09 +0100 +Subject: [PATCH] su: properly clear child PID +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Reported-by: Tobias Stöckmann <tobias@stoeckmann.org> +Signed-off-by: Karel Zak <kzak@redhat.com> +--- + login-utils/su-common.c | 14 ++++++++++---- + 1 file changed, 10 insertions(+), 4 deletions(-) + +diff --git a/login-utils/su-common.c b/login-utils/su-common.c +index 0ea4e40bd..b1720f037 100644 +--- a/login-utils/su-common.c ++++ b/login-utils/su-common.c +@@ -376,6 +376,9 @@ create_watching_parent (void) + } + else + status = WEXITSTATUS (status); ++ ++ /* child is gone, don't use the PID anymore */ ++ child = (pid_t) -1; + } + else if (caught_signal) + status = caught_signal + 128; +@@ -385,7 +388,7 @@ create_watching_parent (void) + else + status = 1; + +- if (caught_signal) ++ if (caught_signal && child != (pid_t)-1) + { + fprintf (stderr, _("\nSession terminated, killing shell...")); + kill (child, SIGTERM); +@@ -395,9 +398,12 @@ create_watching_parent (void) + + if (caught_signal) + { +- sleep (2); +- kill (child, SIGKILL); +- fprintf (stderr, _(" ...killed.\n")); ++ if (child != (pid_t)-1) ++ { ++ sleep (2); ++ kill (child, SIGKILL); ++ fprintf (stderr, _(" ...killed.\n")); ++ } + + /* Let's terminate itself with the received signal. + * +-- +2.11.1 + |