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-rw-r--r--meta/recipes-devtools/librepo/librepo/CVE-2020-14352.patch55
1 files changed, 55 insertions, 0 deletions
diff --git a/meta/recipes-devtools/librepo/librepo/CVE-2020-14352.patch b/meta/recipes-devtools/librepo/librepo/CVE-2020-14352.patch
new file mode 100644
index 0000000000..8f4c5b73bc
--- /dev/null
+++ b/meta/recipes-devtools/librepo/librepo/CVE-2020-14352.patch
@@ -0,0 +1,55 @@
+From 6027d68337b537bf9a68cf810cf9b8e40dac22f8 Mon Sep 17 00:00:00 2001
+From: Jaroslav Rohel <jrohel@redhat.com>
+Date: Wed, 12 Aug 2020 08:35:28 +0200
+Subject: [PATCH] Validate path read from repomd.xml (RhBug:1868639)
+
+= changelog =
+msg: Validate path read from repomd.xml
+type: security
+resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1868639
+
+Upstream-Status: Acepted [https://github.com/rpm-software-management/librepo/commit/7daea2a2429a54dad68b1de9b37a5f65c5cf2600]
+CVE: CVE-2020-14352
+Signed-off-by: Minjae Kim <flowergom@gmail.com>
+---
+ librepo/yum.c | 17 +++++++++++++++++
+ 1 file changed, 17 insertions(+)
+
+diff --git a/librepo/yum.c b/librepo/yum.c
+index 3059188..529257b 100644
+--- a/librepo/yum.c
++++ b/librepo/yum.c
+@@ -23,6 +23,7 @@
+ #define BITS_IN_BYTE 8
+
+ #include <stdio.h>
++#include <libgen.h>
+ #include <assert.h>
+ #include <stdlib.h>
+ #include <errno.h>
+@@ -770,6 +771,22 @@ prepare_repo_download_targets(LrHandle *handle,
+ continue;
+
+ char *location_href = record->location_href;
++
++ char *dest_dir = realpath(handle->destdir, NULL);
++ path = lr_pathconcat(handle->destdir, record->location_href, NULL);
++ char *requested_dir = realpath(dirname(path), NULL);
++ lr_free(path);
++ if (!g_str_has_prefix(requested_dir, dest_dir)) {
++ g_debug("%s: Invalid path: %s", __func__, location_href);
++ g_set_error(err, LR_YUM_ERROR, LRE_IO, "Invalid path: %s", location_href);
++ g_slist_free_full(*targets, (GDestroyNotify) lr_downloadtarget_free);
++ free(requested_dir);
++ free(dest_dir);
++ return FALSE;
++ }
++ free(requested_dir);
++ free(dest_dir);
++
+ gboolean is_zchunk = FALSE;
+ #ifdef WITH_ZCHUNK
+ if (handle->cachedir && record->header_checksum)
+--
+2.17.1
+