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[meta-oe,dunfell] polkit: fix CVE-2021-3560

Message ID 20220315181708.3193573-1-ralph.siemsen@linaro.org
State Accepted, archived
Delegated to: Armin Kuster
Headers show
Series [meta-oe,dunfell] polkit: fix CVE-2021-3560 | expand

Commit Message

Ralph Siemsen March 15, 2022, 6:17 p.m. UTC 
From: Mingli Yu <mingli.yu@windriver.com>

Backport a patch [1] to fix CVE-2021-3560.

[1] https://gitlab.freedesktop.org/polkit/polkit/-/commit/a04d13affe0fa53ff618e07aa8f57f4c0e3b9b81

Signed-off-by: Mingli Yu <mingli.yu@windriver.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

Squashed together 6000f5a3b and 7f4f1ee71
Signed-off-by: Ralph Siemsen <ralph.siemsen@linaro.org>
---
 .../polkit/polkit/CVE-2021-3560.patch         | 33 +++++++++++++++++++
 .../recipes-extended/polkit/polkit_0.116.bb   |  1 +
 2 files changed, 34 insertions(+)
 create mode 100644 meta-oe/recipes-extended/polkit/polkit/CVE-2021-3560.patch
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Patch

diff --git a/meta-oe/recipes-extended/polkit/polkit/CVE-2021-3560.patch b/meta-oe/recipes-extended/polkit/polkit/CVE-2021-3560.patch
new file mode 100644
index 000000000..76308ffdb
--- /dev/null
+++ b/meta-oe/recipes-extended/polkit/polkit/CVE-2021-3560.patch
@@ -0,0 +1,33 @@ 
+From a04d13affe0fa53ff618e07aa8f57f4c0e3b9b81 Mon Sep 17 00:00:00 2001
+From: Jan Rybar <jrybar@redhat.com>
+Date: Wed, 2 Jun 2021 15:43:38 +0200
+Subject: [PATCH] GHSL-2021-074: authentication bypass vulnerability in polkit
+
+initial values returned if error caught
+
+CVE: CVE-2021-3560
+
+Upstream-Status: Backport [https://gitlab.freedesktop.org/polkit/polkit/-/commit/a04d13affe0fa53ff618e07aa8f57f4c0e3b9b81]
+
+Signed-off-by: Mingli Yu <mingli.yu@windriver.com>
+---
+ src/polkit/polkitsystembusname.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/src/polkit/polkitsystembusname.c b/src/polkit/polkitsystembusname.c
+index 8daa12c..8ed1363 100644
+--- a/src/polkit/polkitsystembusname.c
++++ b/src/polkit/polkitsystembusname.c
+@@ -435,6 +435,9 @@ polkit_system_bus_name_get_creds_sync (PolkitSystemBusName           *system_bus
+   while (!((data.retrieved_uid && data.retrieved_pid) || data.caught_error))
+     g_main_context_iteration (tmp_context, TRUE);
+ 
++  if (data.caught_error)
++    goto out;
++
+   if (out_uid)
+     *out_uid = data.uid;
+   if (out_pid)
+-- 
+2.29.2
+
diff --git a/meta-oe/recipes-extended/polkit/polkit_0.116.bb b/meta-oe/recipes-extended/polkit/polkit_0.116.bb
index 77288b008..eaf4187cb 100644
--- a/meta-oe/recipes-extended/polkit/polkit_0.116.bb
+++ b/meta-oe/recipes-extended/polkit/polkit_0.116.bb
@@ -25,6 +25,7 @@  PAM_SRC_URI = "file://polkit-1_pam.patch"
 SRC_URI = "http://www.freedesktop.org/software/polkit/releases/polkit-${PV}.tar.gz \
            ${@bb.utils.contains('DISTRO_FEATURES', 'pam', '${PAM_SRC_URI}', '', d)} \
            file://0003-make-netgroup-support-optional.patch \
+           file://CVE-2021-3560.patch \
            file://CVE-2021-4034.patch \
            "
 SRC_URI[md5sum] = "4b37258583393e83069a0e2e89c0162a"