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perl-Authen-SASL/perl-Authen-SASL-CVE-2025-40918.patch

75 lines
2.8 KiB
Diff

From 82e12b25963bd9d156a9006c9a0929f459b8536a Mon Sep 17 00:00:00 2001
From: Robert Rothenberg <rrwo@cpan.org>
Date: Thu, 10 Jul 2025 21:05:29 +0100
Subject: [PATCH 1/3] Generate cnonce and nonce from system randomness
This fixes CVE-2025-40918.
---
lib/Authen/SASL/Perl/DIGEST_MD5.pm | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/lib/Authen/SASL/Perl/DIGEST_MD5.pm b/lib/Authen/SASL/Perl/DIGEST_MD5.pm
index f089849..44d2109 100644
--- a/lib/Authen/SASL/Perl/DIGEST_MD5.pm
+++ b/lib/Authen/SASL/Perl/DIGEST_MD5.pm
@@ -10,6 +10,7 @@ package Authen::SASL::Perl::DIGEST_MD5;
use strict;
use warnings;
use vars qw(@ISA $CNONCE $NONCE);
+use Crypt::URandom qw(urandom);
use Digest::MD5 qw(md5_hex md5);
use Digest::HMAC_MD5 qw(hmac_md5);
@@ -201,7 +202,7 @@ sub server_start {
$self->{need_step} = 1;
$self->{error} = undef;
- $self->{nonce} = md5_hex($NONCE || join (":", $$, time, rand));
+ $self->{nonce} = $NONCE? md5_hex($NONCE) : unpack('H32',urandom(16));
$self->init_sec_layer;
@@ -260,7 +261,7 @@ sub client_step { # $self, $server_sasl_credentials
my %response = (
nonce => $sparams{'nonce'},
- cnonce => md5_hex($CNONCE || join (":", $$, time, rand)),
+ cnonce => $CNONCE? md5_hex($CNONCE) : unpack('H32',urandom(16)),
'digest-uri' => $self->service . '/' . $self->host,
# calc how often the server nonce has been seen; server expects "00000001"
nc => sprintf("%08d", ++$self->{nonce_counts}{$sparams{'nonce'}}),
From 1284e47c1715ad7d0a8dc07d72d9524ca0da3f17 Mon Sep 17 00:00:00 2001
From: Robert Rothenberg <rrwo@cpan.org>
Date: Wed, 16 Jul 2025 19:59:42 +0100
Subject: [PATCH 2/3] Add whitespace before conditional operator
---
lib/Authen/SASL/Perl/DIGEST_MD5.pm | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/Authen/SASL/Perl/DIGEST_MD5.pm b/lib/Authen/SASL/Perl/DIGEST_MD5.pm
index 44d2109..8c4a67a 100644
--- a/lib/Authen/SASL/Perl/DIGEST_MD5.pm
+++ b/lib/Authen/SASL/Perl/DIGEST_MD5.pm
@@ -202,7 +202,7 @@ sub server_start {
$self->{need_step} = 1;
$self->{error} = undef;
- $self->{nonce} = $NONCE? md5_hex($NONCE) : unpack('H32',urandom(16));
+ $self->{nonce} = $NONCE ? md5_hex($NONCE) : unpack('H32',urandom(16));
$self->init_sec_layer;
@@ -261,7 +261,7 @@ sub client_step { # $self, $server_sasl_credentials
my %response = (
nonce => $sparams{'nonce'},
- cnonce => $CNONCE? md5_hex($CNONCE) : unpack('H32',urandom(16)),
+ cnonce => $CNONCE ? md5_hex($CNONCE) : unpack('H32',urandom(16)),
'digest-uri' => $self->service . '/' . $self->host,
# calc how often the server nonce has been seen; server expects "00000001"
nc => sprintf("%08d", ++$self->{nonce_counts}{$sparams{'nonce'}}),