Merge from main

6 files changed, 29 insertions, 2 deletions

diff --git a/.hgsigs b/.hgsigs
index d84e9bb..149e10e 100644
--- a/.hgsigs
+++ b/.hgsigs
@@ -28,3 +28,4 @@ fd1981f41c626a969f07b4823848deaefef3c8aa 0 iQIcBAABCgAGBQJW4W2TAAoJEESTFJTynGdzu
 ebcdb893992d286d363e60f5353d6e1401e7084b 0 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
 4877afd51e041eca7749cc46b57fd80aa23815b4 0 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
 88f63b8b0f131f24aa90c9b852622b922b1ad738 0 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
+5879c5829e8569466386e7c64252b01b99705628 0 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
diff --git a/.hgtags b/.hgtags
index 8771dcb..23ccaa4 100644
--- a/.hgtags
+++ b/.hgtags
@@ -60,3 +60,4 @@ c31276613181c5cff7854e7ef586ace03424e55e DROPBEAR_2017.75
 009d52ae26d35f3381c801e02318fa9be34be93c DROPBEAR_2019.78
 e2e4929d057b09422f2ea4556fb64209aff58161 DROPBEAR_2020.79
 73646de50f1351735c868d4874f058ff9ad62c96 DROPBEAR_2020.80
+4b984c42372d01fcc2fd487c58af6a5aa65eb88e DROPBEAR_2020.81
diff --git a/CHANGES b/CHANGES
index 82bff2a..42095c8 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,22 @@
+2020.81 - 29 October 2020
+
+- Fix regression in 2020.79 which prevented connecting with some SSH 
+  implementations. Increase MAX_PROPOSED_ALGO to 50, and print a log 
+  message if the limit is hit. This fixes interoperability with sshj 
+  library (used by PyCharm), and GoAnywhere.
+  Reported by Pirmin Walthert and Piotr Jurkiewicz
+
+- Fix building with non-GCC compilers, reported by Kazuo Kuroi
+
+- Fix potential long delay in dbclient, found by OSS Fuzz
+
+- Fix null pointer dereference crash, found by OSS Fuzz
+
+- libtommath now uses the same random source as Dropbear (in 2020.79 
+  and 2020.80 used getrandom() separately)
+
+- Some fuzzing improvements, start of a dbclient fuzzer
+
 2020.80 - 26 June 2020
 
 - Don't block authorized_keys logins with no-X11-forwarding or no-agent-forwarding 
diff --git a/common-algo.c b/common-algo.c
index 7d015a8..f3961c2 100644
--- a/common-algo.c
+++ b/common-algo.c
@@ -396,7 +396,7 @@ static void get_algolist(char* algolist, unsigned int algolist_len,
 
 		if (algolist[i] == ',') {
 			if (*ret_count >= max_count) {
-				dropbear_log(LOG_WARNING, "Too many remote algorithms");
+				dropbear_exit("Too many remote algorithms");
 				*ret_count = 0;
 				return;
 			}
diff --git a/debian/changelog b/debian/changelog
index a0fa7ab..5832446 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+dropbear (2020.81-0.1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Matt Johnston <matt@ucc.asn.au>  Thu, 29 Oct 2020 22:51:57 +0800
+
 dropbear (2020.80-0.1) unstable; urgency=low
 
   * New upstream release.
diff --git a/sysoptions.h b/sysoptions.h
index 22bc18c..3107a0e 100644
--- a/sysoptions.h
+++ b/sysoptions.h
@@ -4,7 +4,7 @@
  *******************************************************************/
 
 #ifndef DROPBEAR_VERSION
-#define DROPBEAR_VERSION "2020.80"
+#define DROPBEAR_VERSION "2020.81"
 #endif
 
 #define LOCAL_IDENT "SSH-2.0-dropbear_" DROPBEAR_VERSION