1 files changed, 34 insertions, 0 deletions

diff --git a/meta/recipes-devtools/rpm/files/CVE-2021-3521-03.patch b/meta/recipes-devtools/rpm/files/CVE-2021-3521-03.patch
new file mode 100644
index 0000000000..fd31f11beb
--- /dev/null
+++ b/meta/recipes-devtools/rpm/files/CVE-2021-3521-03.patch
@@ -0,0 +1,34 @@
+From 5ff86764b17f31535cb247543a90dd739076ec38 Mon Sep 17 00:00:00 2001
+From: Demi Marie Obenour <demi@invisiblethingslab.com>
+Date: Thu, 6 May 2021 18:34:45 -0400
+Subject: [PATCH] Do not allow extra packets to follow a signature
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+According to RFC 4880 § 11.4, a detached signature is “simply a
+Signature packet”.  Therefore, extra packets following a detached
+signature are not allowed.
+
+Dependent patch:
+CVE: CVE-2021-3521
+Upstream-Status: Backport [https://github.com/rpm-software-management/rpm/commit/5ff86764b17f31535cb247543a90dd739076ec38]
+Signed-off-by: Riyaz Khan <Riyaz.Khan@kpit.com>
+
+---
+ rpmio/rpmpgp.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/rpmio/rpmpgp.c b/rpmio/rpmpgp.c
+index f1a99e7169..5b346a8253 100644
+--- a/rpmio/rpmpgp.c
++++ b/rpmio/rpmpgp.c
+@@ -1068,6 +1068,8 @@ int pgpPrtParams(const uint8_t * pkts, size_t pktlen, unsigned int pkttype,
+            break;
+ 
+        p += (pkt.body - pkt.head) + pkt.blen;
++       if (pkttype == PGPTAG_SIGNATURE)
++           break;
+     }
+ 
+     rc = (digp && (p == pend)) ? 0 : -1;