[Buildroot] [PATCH] package/libkrb5: security bump to version 1.20.1

[Peter Korsgaard]

Fixes the following security issue:

CVE-2022-42898: In MIT krb5 releases 1.8 and later, an authenticated
attacker may be able to cause a KDC or kadmind process to crash by reading
beyond the bounds of allocated memory, creating a denial of service.  A
privileged attacker may similarly be able to cause a Kerberos or GSS
application service to crash.  On 32-bit platforms, an attacker can also
cause insufficient memory to be allocated for the result, potentially
leading to remote code execution in a KDC, kadmind, or GSS or Kerberos
application server process.  An attacker with the privileges of a
cross-realm KDC may be able to extract secrets from a KDC process's memory
by having them copied into the PAC of a new ticket.

Bugfix tarballs are located in the same directory as the base version, so
introduce LIBKRB5_VERSION_MAJOR.

Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
---
 package/libkrb5/libkrb5.hash | 2 +-
 package/libkrb5/libkrb5.mk   | 5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/package/libkrb5/libkrb5.hash b/package/libkrb5/libkrb5.hash
index 2fce24b45b..94dfa2ed6e 100644
--- a/package/libkrb5/libkrb5.hash
+++ b/package/libkrb5/libkrb5.hash
@@ -1,5 +1,5 @@
 # Locally calculated after checking pgp signature
-sha256  7e022bdd3c851830173f9faaa006a230a0e0fdad4c953e85bff4bf0da036e12f  krb5-1.20.tar.gz
+sha256  704aed49b19eb5a7178b34b2873620ec299db08752d6a8574f95d41879ab8851  krb5-1.20.1.tar.gz
 
 # Hash for license file:
 sha256  cfadcf7b2ead2f3af793c25c00638c9908ac0023b101695f40cb9a03b16811dc  NOTICE
diff --git a/package/libkrb5/libkrb5.mk b/package/libkrb5/libkrb5.mk
index 5e547470ed..9bacfaee58 100644
--- a/package/libkrb5/libkrb5.mk
+++ b/package/libkrb5/libkrb5.mk
@@ -4,8 +4,9 @@
 #
 ################################################################################
 
-LIBKRB5_VERSION = 1.20
-LIBKRB5_SITE = https://web.mit.edu/kerberos/dist/krb5/$(LIBKRB5_VERSION)
+LIBKRB5_VERSION_MAJOR = 1.20
+LIBKRB5_VERSION = $(LIBKRB5_VERSION_MAJOR).1
+LIBKRB5_SITE = https://web.mit.edu/kerberos/dist/krb5/$(LIBKRB5_VERSION_MAJOR)
 LIBKRB5_SOURCE = krb5-$(LIBKRB5_VERSION).tar.gz
 LIBKRB5_SUBDIR = src
 LIBKRB5_LICENSE = MIT, BSD-2-Clause, BSD-3-Clause, BSD-4-Clause, others
-- 
2.30.2