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authorA. Wilcox <AWilcox@Wilcox-Tech.com>2020-09-23 04:24:59 +0000
committerA. Wilcox <AWilcox@Wilcox-Tech.com>2020-09-23 04:24:59 +0000
commitbe4868783737aeb41ec84bb4d3739e4c8e9534cf (patch)
tree2b932b3726886e1b92ba8689b30788f7c94b6971 /user
parent203d76622b113543ee679925cb99d7e3f2ccbe05 (diff)
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user/libetpan: Patch CVE-2020-15953
Diffstat (limited to 'user')
-rw-r--r--user/libetpan/APKBUILD12
-rw-r--r--user/libetpan/CVE-2020-15953-a.patch27
-rw-r--r--user/libetpan/CVE-2020-15953-b.patch58
3 files changed, 95 insertions, 2 deletions
diff --git a/user/libetpan/APKBUILD b/user/libetpan/APKBUILD
index 3ccfa2679..b8fe55fd2 100644
--- a/user/libetpan/APKBUILD
+++ b/user/libetpan/APKBUILD
@@ -2,7 +2,7 @@
# Maintainer: A. Wilcox <awilfox@adelielinux.org>
pkgname=libetpan
pkgver=1.9.4
-pkgrel=0
+pkgrel=1
pkgdesc="Mail library for C"
url="https://www.etpan.org/libetpan.html"
arch="all"
@@ -13,8 +13,14 @@ makedepends="autoconf automake cyrus-sasl-dev db-dev expat-dev libtool
subpackages="$pkgname-dev"
source="libetpan-$pkgver.tar.gz::https://github.com/dinhviethoa/libetpan/archive/$pkgver.tar.gz
missing-header.patch
+ CVE-2020-15953-a.patch
+ CVE-2020-15953-b.patch
"
+# secfixes:
+# 1.9.4-r1:
+# - CVE-2020-15953
+
build() {
./autogen.sh \
--build=$CBUILD \
@@ -35,4 +41,6 @@ package() {
}
sha512sums="7b7047d084fb4ce0c91821c2ad78e921d6d009106851afb7f5b068713c84ebe6926f6bf7a7423f263eeebef617511e44f6b65448d892bbc058c447235fd55c0f libetpan-1.9.4.tar.gz
-df0ba883c9328b7cab408a54f38e6f9c7f5f603b0f016b7ea2e9fa49aa4118ff6723218bb9942f278028291e1c7e9da0bb1d48ab2c471b0ddf5edc3e78a8a1df missing-header.patch"
+df0ba883c9328b7cab408a54f38e6f9c7f5f603b0f016b7ea2e9fa49aa4118ff6723218bb9942f278028291e1c7e9da0bb1d48ab2c471b0ddf5edc3e78a8a1df missing-header.patch
+17f2773dc7b807178b152293474e2dc05f4a0d708d56ca01a95a33f1a84af3839efa64e318fd18af946640311032e3c7c2e27a2259d9222ce8e175caa161dbc2 CVE-2020-15953-a.patch
+61bfa931ce10a5a25caca261f672135f80202e266feaff981ffe994ea5d55d099b127c5734cca02194ad1bd0ef4d7d37a0022640e749a5168a9f56018580de5f CVE-2020-15953-b.patch"
diff --git a/user/libetpan/CVE-2020-15953-a.patch b/user/libetpan/CVE-2020-15953-a.patch
new file mode 100644
index 000000000..1130e3a51
--- /dev/null
+++ b/user/libetpan/CVE-2020-15953-a.patch
@@ -0,0 +1,27 @@
+From 8ceb0cf0191f8b374a7f05974b29c6242ce8f752 Mon Sep 17 00:00:00 2001
+From: Damian Poddebniak <poddebniak@fh-muenster.de>
+Date: Thu, 23 Jul 2020 19:24:45 +0200
+Subject: [PATCH] Detect extra data after STARTTLS response and exit
+
+---
+ src/low-level/imap/mailimap.c | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+diff --git a/src/low-level/imap/mailimap.c b/src/low-level/imap/mailimap.c
+index bb17119d..4ffcf55d 100644
+--- a/src/low-level/imap/mailimap.c
++++ b/src/low-level/imap/mailimap.c
+@@ -2428,6 +2428,13 @@ int mailimap_starttls(mailimap * session)
+
+ mailimap_response_free(response);
+
++ // Detect if the server send extra data after the STARTTLS response.
++ // This *may* be a "response injection attack".
++ if (session->imap_stream->read_buffer_len != 0) {
++ // Since it is also an IMAP protocol violation, exit.
++ return MAILIMAP_ERROR_STARTTLS;
++ }
++
+ switch (error_code) {
+ case MAILIMAP_RESP_COND_STATE_OK:
+ return MAILIMAP_NO_ERROR;
diff --git a/user/libetpan/CVE-2020-15953-b.patch b/user/libetpan/CVE-2020-15953-b.patch
new file mode 100644
index 000000000..95e0385bb
--- /dev/null
+++ b/user/libetpan/CVE-2020-15953-b.patch
@@ -0,0 +1,58 @@
+From 6068b0fa8310bced874b322b20ac470472c64784 Mon Sep 17 00:00:00 2001
+From: Fabian Ising <f.ising@fh-muenster.de>
+Date: Fri, 24 Jul 2020 08:56:05 +0200
+Subject: [PATCH 1/2] Detect extra data after STLS response and return error
+
+---
+ src/low-level/pop3/mailpop3.c | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+diff --git a/src/low-level/pop3/mailpop3.c b/src/low-level/pop3/mailpop3.c
+index ab9535be..e2124bf8 100644
+--- a/src/low-level/pop3/mailpop3.c
++++ b/src/low-level/pop3/mailpop3.c
+@@ -959,6 +959,14 @@ int mailpop3_stls(mailpop3 * f)
+
+ if (r != RESPONSE_OK)
+ return MAILPOP3_ERROR_STLS_NOT_SUPPORTED;
++
++ // Detect if the server send extra data after the STLS response.
++ // This *may* be a "response injection attack".
++ if (f->pop3_stream->read_buffer_len != 0) {
++ // Since it is also protocol violation, exit.
++ // There is no error type for STARTTLS errors in POP3
++ return MAILPOP3_ERROR_SSL;
++ }
+
+ return MAILPOP3_NO_ERROR;
+ }
+
+From 874ebf7ce9d108c6c1def733f90d156b44fb6ef7 Mon Sep 17 00:00:00 2001
+From: Fabian Ising <f.ising@fh-muenster.de>
+Date: Fri, 24 Jul 2020 08:56:31 +0200
+Subject: [PATCH 2/2] Detect extra data after SMTP STARTTLS response and return
+ error
+
+---
+ src/low-level/smtp/mailsmtp.c | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+diff --git a/src/low-level/smtp/mailsmtp.c b/src/low-level/smtp/mailsmtp.c
+index b7fc459e..3145cadf 100644
+--- a/src/low-level/smtp/mailsmtp.c
++++ b/src/low-level/smtp/mailsmtp.c
+@@ -1111,6 +1111,14 @@ int mailesmtp_starttls(mailsmtp * session)
+ return MAILSMTP_ERROR_STREAM;
+ r = read_response(session);
+
++ // Detect if the server send extra data after the STARTTLS response.
++ // This *may* be a "response injection attack".
++ if (session->stream->read_buffer_len != 0) {
++ // Since it is also protocol violation, exit.
++ // There is no general error type for STARTTLS errors in SMTP
++ return MAILSMTP_ERROR_SSL;
++ }
++
+ switch (r) {
+ case 220:
+ return MAILSMTP_NO_ERROR;