Merge branch 'release/debian/1.8.18-11'debian/1.8.18-11

1 files changed, 48 insertions, 0 deletions

diff --git a/debian/patches/CVE-2020-5208_3-session-Fix-buffer-overflow-in-ipmi_get_session_info.patch b/debian/patches/CVE-2020-5208_3-session-Fix-buffer-overflow-in-ipmi_get_session_info.patch
new file mode 100644
index 0000000..df07c96
--- /dev/null
+++ b/debian/patches/CVE-2020-5208_3-session-Fix-buffer-overflow-in-ipmi_get_session_info.patch
@@ -0,0 +1,48 @@
+From 41d7026946fafbd4d1ec0bcaca3ea30a6e8eed22 Mon Sep 17 00:00:00 2001
+From: Chrostoper Ertl <chertl@microsoft.com>
+Date: Thu, 28 Nov 2019 16:51:49 +0000
+Subject: [PATCH 3/6] session: Fix buffer overflow in ipmi_get_session_info
+
+Partial fix for CVE-2020-5208, see
+https://github.com/ipmitool/ipmitool/security/advisories/GHSA-g659-9qxw-p7cp
+
+The `ipmi_get_session_info` function does not properly check the
+response `data_len`, which is used as a copy size, allowing stack buffer
+overflow.
+---
+ lib/ipmi_session.c | 12 ++++++++----
+ 1 file changed, 8 insertions(+), 4 deletions(-)
+
+diff --git a/lib/ipmi_session.c b/lib/ipmi_session.c
+index ecf4afc..b282d6d 100644
+--- a/lib/ipmi_session.c
++++ b/lib/ipmi_session.c
+@@ -309,8 +309,10 @@ ipmi_get_session_info(struct ipmi_intf         * intf,
+ 		}
+ 		else
+ 		{
+-			memcpy(&session_info,  rsp->data, rsp->data_len);
+-			print_session_info(&session_info, rsp->data_len);
++			memcpy(&session_info,  rsp->data,
++			       __min(rsp->data_len, sizeof(session_info)));
++			print_session_info(&session_info,
++			                   __min(rsp->data_len, sizeof(session_info)));
+ 		}
+ 		break;
+ 		
+@@ -341,8 +343,10 @@ ipmi_get_session_info(struct ipmi_intf         * intf,
+ 				break;
+ 			}
+ 
+-			memcpy(&session_info,  rsp->data, rsp->data_len);
+-			print_session_info(&session_info, rsp->data_len);
++			memcpy(&session_info,  rsp->data,
++			       __min(rsp->data_len, sizeof(session_info)));
++			print_session_info(&session_info,
++			                   __min(rsp->data_len, sizeof(session_info)));
+ 			
+ 		} while (i <= session_info.session_slot_count);
+ 		break;
+-- 
+2.20.1
+