From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33243) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ecidW-0001Y2-64 for guix-patches@gnu.org; Fri, 19 Jan 2018 21:13:08 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ecicZ-00073O-4A for guix-patches@gnu.org; Fri, 19 Jan 2018 21:12:02 -0500 Received: from debbugs.gnu.org ([208.118.235.43]:55759) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1ecicY-00072B-O2 for guix-patches@gnu.org; Fri, 19 Jan 2018 21:11:02 -0500 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1ecicX-0007PQ-Rq for guix-patches@gnu.org; Fri, 19 Jan 2018 21:11:01 -0500 Subject: [bug#30180] [PATCH] gnu: libsndfile: Fix CVE-2017-12562. Resent-Message-ID: Received: from eggs.gnu.org ([2001:4830:134:3::10]:53408) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eciaM-0000ZS-Dh for guix-patches@gnu.org; Fri, 19 Jan 2018 21:09:52 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eciZW-0000lD-HQ for guix-patches@gnu.org; Fri, 19 Jan 2018 21:08:46 -0500 Received: from out1-smtp.messagingengine.com ([66.111.4.25]:33095) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1eciZW-0000jI-4U for guix-patches@gnu.org; Fri, 19 Jan 2018 21:07:54 -0500 Received: from jasmine.lan (unknown [68.119.236.136]) by mail.messagingengine.com (Postfix) with ESMTPA id 6B78B7E2E5 for ; Fri, 19 Jan 2018 21:07:52 -0500 (EST) From: Leo Famulari Date: Fri, 19 Jan 2018 18:07:45 -0800 Message-Id: <4ce9653c4e8ec4b70e53d2608a2551bb0831c1d0.1516414012.git.leo@famulari.name> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-patches-bounces+kyle=kyleam.com@gnu.org Sender: "Guix-patches" To: 30180@debbugs.gnu.org I'd like to ungraft this on core-updates, even though it's late in the core-updates cycle. Changing libsndfile requires only ~600 rebuilds per architecture. * gnu/packages/patches/libsndfile-CVE-2017-12562.patch: New file. * gnu/local.mk (dist_patch_DATA): Add it. * gnu/packages/pulseaudio.scm (libsndfile)[replacement]: New field. (libsndfile/fixed): New variable. --- gnu/local.mk | 1 + .../patches/libsndfile-CVE-2017-12562.patch | 97 ++++++++++++++++++++++ gnu/packages/pulseaudio.scm | 10 +++ 3 files changed, 108 insertions(+) create mode 100644 gnu/packages/patches/libsndfile-CVE-2017-12562.patch diff --git a/gnu/local.mk b/gnu/local.mk index 240554fe4..80e7527e4 100644 --- a/gnu/local.mk +++ b/gnu/local.mk @@ -837,6 +837,7 @@ dist_patch_DATA = \ %D%/packages/patches/libsndfile-armhf-type-checks.patch \ %D%/packages/patches/libsndfile-CVE-2017-8361-8363-8365.patch \ %D%/packages/patches/libsndfile-CVE-2017-8362.patch \ + %D%/packages/patches/libsndfile-CVE-2017-12562.patch \ %D%/packages/patches/libssh-hostname-parser-bug.patch \ %D%/packages/patches/libssh2-fix-build-failure-with-gcrypt.patch \ %D%/packages/patches/libtar-CVE-2013-4420.patch \ diff --git a/gnu/packages/patches/libsndfile-CVE-2017-12562.patch b/gnu/packages/patches/libsndfile-CVE-2017-12562.patch new file mode 100644 index 000000000..58cb242b1 --- /dev/null +++ b/gnu/packages/patches/libsndfile-CVE-2017-12562.patch @@ -0,0 +1,97 @@ +Fix CVE-2017-12562: + +https://github.com/erikd/libsndfile/issues/292 +https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12562 + +Patch copied from upstream source repository: + +https://github.com/erikd/libsndfile/commit/cf7a8182c2642c50f1cf90dddea9ce96a8bad2e8 + +From cf7a8182c2642c50f1cf90dddea9ce96a8bad2e8 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?J=C3=B6rn=20Heusipp?= +Date: Wed, 14 Jun 2017 12:25:40 +0200 +Subject: [PATCH] src/common.c: Fix heap buffer overflows when writing strings + in binheader + +Fixes the following problems: + 1. Case 's' only enlarges the buffer by 16 bytes instead of size bytes. + 2. psf_binheader_writef() enlarges the header buffer (if needed) prior to the + big switch statement by an amount (16 bytes) which is enough for all cases + where only a single value gets added. Cases 's', 'S', 'p' however + additionally write an arbitrary length block of data and again enlarge the + buffer to the required amount. However, the required space calculation does + not take into account the size of the length field which gets output before + the data. + 3. Buffer size requirement calculation in case 'S' does not account for the + padding byte ("size += (size & 1) ;" happens after the calculation which + uses "size"). + 4. Case 'S' can overrun the header buffer by 1 byte when no padding is + involved + ("memcpy (&(psf->header.ptr [psf->header.indx]), strptr, size + 1) ;" while + the buffer is only guaranteed to have "size" space available). + 5. "psf->header.ptr [psf->header.indx] = 0 ;" in case 'S' always writes 1 byte + beyond the space which is guaranteed to be allocated in the header buffer. + 6. Case 's' can overrun the provided source string by 1 byte if padding is + involved ("memcpy (&(psf->header.ptr [psf->header.indx]), strptr, size) ;" + where "size" is "strlen (strptr) + 1" (which includes the 0 terminator, + plus optionally another 1 which is padding and not guaranteed to be + readable via the source string pointer). + +Closes: https://github.com/erikd/libsndfile/issues/292 +--- + src/common.c | 15 +++++++-------- + 1 file changed, 7 insertions(+), 8 deletions(-) + +diff --git a/src/common.c b/src/common.c +index 1a6204ca..6b2a2ee9 100644 +--- a/src/common.c ++++ b/src/common.c +@@ -681,16 +681,16 @@ psf_binheader_writef (SF_PRIVATE *psf, const char *format, ...) + /* Write a C string (guaranteed to have a zero terminator). */ + strptr = va_arg (argptr, char *) ; + size = strlen (strptr) + 1 ; +- size += (size & 1) ; + +- if (psf->header.indx + (sf_count_t) size >= psf->header.len && psf_bump_header_allocation (psf, 16)) ++ if (psf->header.indx + 4 + (sf_count_t) size + (sf_count_t) (size & 1) > psf->header.len && psf_bump_header_allocation (psf, 4 + size + (size & 1))) + return count ; + + if (psf->rwf_endian == SF_ENDIAN_BIG) +- header_put_be_int (psf, size) ; ++ header_put_be_int (psf, size + (size & 1)) ; + else +- header_put_le_int (psf, size) ; ++ header_put_le_int (psf, size + (size & 1)) ; + memcpy (&(psf->header.ptr [psf->header.indx]), strptr, size) ; ++ size += (size & 1) ; + psf->header.indx += size ; + psf->header.ptr [psf->header.indx - 1] = 0 ; + count += 4 + size ; +@@ -703,16 +703,15 @@ psf_binheader_writef (SF_PRIVATE *psf, const char *format, ...) + */ + strptr = va_arg (argptr, char *) ; + size = strlen (strptr) ; +- if (psf->header.indx + (sf_count_t) size > psf->header.len && psf_bump_header_allocation (psf, size)) ++ if (psf->header.indx + 4 + (sf_count_t) size + (sf_count_t) (size & 1) > psf->header.len && psf_bump_header_allocation (psf, 4 + size + (size & 1))) + return count ; + if (psf->rwf_endian == SF_ENDIAN_BIG) + header_put_be_int (psf, size) ; + else + header_put_le_int (psf, size) ; +- memcpy (&(psf->header.ptr [psf->header.indx]), strptr, size + 1) ; ++ memcpy (&(psf->header.ptr [psf->header.indx]), strptr, size + (size & 1)) ; + size += (size & 1) ; + psf->header.indx += size ; +- psf->header.ptr [psf->header.indx] = 0 ; + count += 4 + size ; + break ; + +@@ -724,7 +723,7 @@ psf_binheader_writef (SF_PRIVATE *psf, const char *format, ...) + size = (size & 1) ? size : size + 1 ; + size = (size > 254) ? 254 : size ; + +- if (psf->header.indx + (sf_count_t) size > psf->header.len && psf_bump_header_allocation (psf, size)) ++ if (psf->header.indx + 1 + (sf_count_t) size > psf->header.len && psf_bump_header_allocation (psf, 1 + size)) + return count ; + + header_put_byte (psf, size) ; diff --git a/gnu/packages/pulseaudio.scm b/gnu/packages/pulseaudio.scm index ba288aa44..39f54437c 100644 --- a/gnu/packages/pulseaudio.scm +++ b/gnu/packages/pulseaudio.scm @@ -47,6 +47,7 @@ (define-public libsndfile (package (name "libsndfile") + (replacement libsndfile/fixed) (version "1.0.28") (source (origin (method url-fetch) @@ -80,6 +81,15 @@ SPARC. Hopefully the design of the library will also make it easy to extend for reading and writing new sound file formats.") (license l:gpl2+))) +(define libsndfile/fixed + (package + (inherit libsndfile) + (source (origin + (inherit (package-source libsndfile)) + (patches (append + (origin-patches (package-source libsndfile)) + (search-patches "libsndfile-CVE-2017-12562.patch"))))))) + (define-public libsamplerate (package (name "libsamplerate") ; aka. Secret Rabbit Code (SRC) -- 2.16.0