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Bug 893406 (CVE-2022-24963) - <dev-libs/apr-1.7.2, <dev-libs/apr-util-1.6.3: integer overflow/wraparound in apr_encode (CVE-2022-24963)
Summary: <dev-libs/apr-1.7.2, <dev-libs/apr-util-1.6.3: integer overflow/wraparound in...
Status: IN_PROGRESS
Alias: CVE-2022-24963
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal minor (vote)
Assignee: Gentoo Security
URL: https://marc.info/?l=oss-security&m=1...
Whiteboard: B3 [glsa?]
Keywords:
Depends on: 894144
Blocks:
  Show dependency tree
 
Reported: 2023-02-06 15:37 UTC by Hank Leininger
Modified: 2023-04-19 04:38 UTC (History)
3 users (show)

See Also:
Package list:
Runtime testing required: ---


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Description Hank Leininger 2023-02-06 15:37:36 UTC
From $URL:

"Severity: moderate

Description:

Integer Overflow or Wraparound vulnerability in apr_encode functions of Apache Portable Runtime (APR) allows an attacker to write beyond bounds of a buffer. This issue affects Apache Portable Runtime (APR) version 1.7.0."

apr 1.7.2 includes fixes.

www-servers/apache depends on dev-libs/apr via apache-2.eclass, so anyone using Apache httpd has apr.

The advisory doesn't elaborate on what conditions are necessary for malicious inputs to be passed to the vulnerable functions.

httpd-2.4.55/modules/tls/tls_cert.c calls apr_encode_base64 a couple of times, and of course there are tens of thousands of other mentions of apr_, some of which may call apr_encode* indirectly.
Comment 1 Sam James archtester Gentoo Infrastructure gentoo-dev Security 2023-02-07 03:23:00 UTC
I'll handle this & apr-util.
Comment 2 Tomáš Mózes 2023-02-07 09:48:16 UTC
(In reply to Sam James from comment #1)
> I'll handle this & apr-util.

Thanks.

Started to work on this during the morning, but some missing patches need to be checked if we still need them. This worked for me (with apache 2.4.55 on amd64):
--- /usr/portage/dev-libs/apr-util/apr-util-1.6.1-r10.ebuild	2022-12-18 14:10:24.000000000 +0000
+++ apr-util-1.6.3.ebuild	2023-02-07 04:18:51.073557958 +0000
@@ -1,11 +1,10 @@
-# Copyright 1999-2022 Gentoo Authors
+# Copyright 1999-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
-EAPI=7
+EAPI="8"
 
 # Usually apr-util has the same PV as apr, but in case of security fixes, this may change.
-# APR_PV="${PV}"
-APR_PV="1.7.0-r6"
+APR_PV="${PV}"
 
 inherit autotools db-use libtool multilib toolchain-funcs
 
@@ -15,7 +14,7 @@
 
 LICENSE="Apache-2.0"
 SLOT="1"
-KEYWORDS="~alpha amd64 arm arm64 ~hppa ~ia64 ~loong ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~x64-cygwin ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~x64-cygwin ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
 IUSE="berkdb doc gdbm ldap mysql nss odbc openssl postgres sqlite static-libs"
 #RESTRICT="test"
 
@@ -48,9 +47,7 @@
 
 PATCHES=(
 	"${FILESDIR}"/${PN}-1.5.3-sysroot.patch #385775
-	"${FILESDIR}"/${PN}-1.6.1-fix-gdbm-error-handling.patch
 	"${FILESDIR}"/${PN}-1.6.1-libtool.patch # 779487
-	"${FILESDIR}"/${PN}-1.6.1-mariadb-support.patch
 	"${FILESDIR}"/${PN}-1.6.1-my_bool.patch
 	"${FILESDIR}"/${PN}-1.6.1-drop-my_init.patch
 )


--- /usr/portage/dev-libs/apr/apr-1.7.0-r6.ebuild	2022-12-17 19:40:11.000000000 +0000
+++ apr-1.7.2.ebuild	2023-02-07 04:21:11.093052801 +0000
@@ -1,7 +1,7 @@
-# Copyright 1999-2022 Gentoo Authors
+# Copyright 1999-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
-EAPI=7
+EAPI="8"
 
 inherit autotools libtool toolchain-funcs
 
@@ -11,7 +11,7 @@
 
 LICENSE="Apache-2.0"
 SLOT="1/${PV%.*}"
-KEYWORDS="~alpha amd64 arm arm64 ~hppa ~ia64 ~loong ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~x64-cygwin ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~x64-cygwin ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
 IUSE="doc older-kernels-compatibility selinux static-libs +urandom"
 
 # See bug #815265 for libcrypt dependency
@@ -28,13 +28,13 @@
 PATCHES=(
 	"${FILESDIR}"/${PN}-1.5.0-mint.patch
 	"${FILESDIR}"/${PN}-1.5.0-libtool.patch
-	"${FILESDIR}"/${PN}-1.5.0-cross-types.patch
-	"${FILESDIR}"/${PN}-1.5.0-sysroot.patch #385775
+#	"${FILESDIR}"/${PN}-1.5.0-cross-types.patch
+#	"${FILESDIR}"/${PN}-1.5.0-sysroot.patch #385775
 	"${FILESDIR}"/${PN}-1.6.3-skip-known-failing-tests.patch
-	"${FILESDIR}"/${PN}-1.7.0-autoconf-2.70.patch #750353
+#	"${FILESDIR}"/${PN}-1.7.0-autoconf-2.70.patch #750353
 	"${FILESDIR}"/${PN}-1.7.0-CVE-2021-35940.patch #828545
-	"${FILESDIR}"/${PN}-1.7.0-clang-16.patch #870004
-	"${FILESDIR}"/${PN}-1.7.0-dev-zero.patch #830833
+#	"${FILESDIR}"/${PN}-1.7.0-clang-16.patch #870004
+#	"${FILESDIR}"/${PN}-1.7.0-dev-zero.patch #830833
 )
 
 src_prepare() {
Comment 3 Larry the Git Cow gentoo-dev 2023-02-13 07:04:51 UTC
The bug has been referenced in the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=75b2b9521e8558b0f0d15332839bbdb0e0406c23

commit 75b2b9521e8558b0f0d15332839bbdb0e0406c23
Author:     Sam James <sam@gentoo.org>
AuthorDate: 2023-02-13 06:47:30 +0000
Commit:     Sam James <sam@gentoo.org>
CommitDate: 2023-02-13 06:54:53 +0000

    dev-libs/apr-util: add 1.6.3
    
    Bug: https://bugs.gentoo.org/811765
    Bug: https://bugs.gentoo.org/870004
    Bug: https://bugs.gentoo.org/893406
    Closes: https://bugs.gentoo.org/875167
    Signed-off-by: Sam James <sam@gentoo.org>

 dev-libs/apr-util/Manifest                         |   1 +
 dev-libs/apr-util/apr-util-1.6.3.ebuild            | 147 +++++++++++++++++++++
 .../files/apr-util-1.6.3-fix-pkgconfig-libs.patch  |  29 ++++
 3 files changed, 177 insertions(+)

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=7f8fe2b7fedf4372a89b3a11865c04a645a84c88

commit 7f8fe2b7fedf4372a89b3a11865c04a645a84c88
Author:     Sam James <sam@gentoo.org>
AuthorDate: 2023-02-13 06:28:09 +0000
Commit:     Sam James <sam@gentoo.org>
CommitDate: 2023-02-13 06:54:07 +0000

    dev-libs/apr: add 1.7.2
    
    Bug: https://bugs.gentoo.org/870004
    Bug: https://bugs.gentoo.org/875167
    Bug: https://bugs.gentoo.org/893406
    Closes: https://bugs.gentoo.org/811765
    Signed-off-by: Sam James <sam@gentoo.org>

 dev-libs/apr/Manifest                              |   1 +
 dev-libs/apr/apr-1.7.2.ebuild                      | 167 +++++++++++++++++++++
 .../apr/files/apr-1.7.2-fix-pkgconfig-libs.patch   |  35 +++++
 dev-libs/apr/files/apr-1.7.2-libtool.patch         |  16 ++
 dev-libs/apr/files/apr-1.7.2-respect-flags.patch   |  22 +++
 dev-libs/apr/files/apr-1.7.2-sysroot.patch         |  37 +++++
 dev-libs/apr/metadata.xml                          |   1 +
 7 files changed, 279 insertions(+)
Comment 4 Sam James archtester Gentoo Infrastructure gentoo-dev Security 2023-02-13 07:13:04 UTC
This kind of took as much work as I expected (a lot) because of the huge number of patches we had and how delicate they are
Comment 5 Sam James archtester Gentoo Infrastructure gentoo-dev Security 2023-02-13 07:15:40 UTC
(In reply to Sam James from comment #4)
> This kind of took as much work as I expected (a lot) because of the huge
> number of patches we had and how delicate they are

comment got cut off: This kind of took as much work as I expected (a lot) because of number of patches we had and how delicate they are, but I think it's a bit tidier now and bumps should be easier in future.

I'll stable Apache now for bug 891211 and give apr a day or two to soak given how delicate it's been in the past. It's had a tendency to break reverse dependencies.
Comment 6 Tomáš Mózes 2023-02-13 07:26:11 UTC
(In reply to Sam James from comment #5)
> (In reply to Sam James from comment #4)
> > This kind of took as much work as I expected (a lot) because of the huge
> > number of patches we had and how delicate they are
> 
> comment got cut off: This kind of took as much work as I expected (a lot)
> because of number of patches we had and how delicate they are, but I think
> it's a bit tidier now and bumps should be easier in future.
> 
> I'll stable Apache now for bug 891211 and give apr a day or two to soak
> given how delicate it's been in the past. It's had a tendency to break
> reverse dependencies.

Thanks, I'll test it out!
Comment 7 Tomáš Mózes 2023-02-14 06:33:11 UTC
Tested on 3 machines (~amd64/amd64), works fine, thanks Sam!
Comment 8 Hans de Graaff gentoo-dev Security 2023-03-18 16:29:15 UTC
Cleanup done.