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libid3tag: handle unknown encodings (CVE-2017-11550)

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(From OE-Core rev: 5090afc1b07e62f70ebcf63a7abb75b8552f0a52)

(From OE-Core rev: 9be34806ddfbe0e8d214290e0623f2b9779a14b7)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Ross Burton
2019-07-25 12:03:01 +08:00
committed by Richard Purdie
parent df4f089cbf
commit 93ba4bb6a1
2 changed files with 40 additions and 0 deletions
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39
meta/recipes-multimedia/libid3tag/libid3tag/unknown-encoding.patch Normal file
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@@ -0,0 +1,39 @@
In case of an unknown/invalid encoding, id3_parse_string() will
return NULL, but the return value wasn't checked resulting
in segfault in id3_ucs4_length(). This is the only place
the return value wasn't checked.
Patch taken from Debian:
https://sources.debian.org/patches/libid3tag/0.15.1b-14/11_unknown_encoding.dpatch/
CVE: CVE-2017-11550
Upstream-Status: Pending
Signed-off-by: Ross Burton <ross.burton@intel.com>
diff -urNad libid3tag-0.15.1b~/compat.gperf libid3tag-0.15.1b/compat.gperf
--- libid3tag-0.15.1b~/compat.gperf 2004-01-23 09:41:32.000000000 +0000
+++ libid3tag-0.15.1b/compat.gperf 2007-01-14 14:36:53.000000000 +0000
@@ -236,6 +236,10 @@
encoding = id3_parse_uint(&data, 1);
string = id3_parse_string(&data, end - data, encoding, 0);
+ if (!string)
+ {
+ continue;
+ }
if (id3_ucs4_length(string) < 4) {
free(string);
diff -urNad libid3tag-0.15.1b~/parse.c libid3tag-0.15.1b/parse.c
--- libid3tag-0.15.1b~/parse.c 2004-01-23 09:41:32.000000000 +0000
+++ libid3tag-0.15.1b/parse.c 2007-01-14 14:37:34.000000000 +0000
@@ -165,6 +165,9 @@
case ID3_FIELD_TEXTENCODING_UTF_8:
ucs4 = id3_utf8_deserialize(ptr, length);
break;
+ default:
+ /* FIXME: Unknown encoding! Print warning? */
+ return NULL;
}
if (ucs4 && !full) {

1
meta/recipes-multimedia/libid3tag/libid3tag_0.15.1b.bb
View File

@@ -14,6 +14,7 @@ SRC_URI = "${SOURCEFORGE_MIRROR}/mad/libid3tag-${PV}.tar.gz \
file://obsolete_automake_macros.patch \
file://0001-Fix-gperf-3.1-incompatibility.patch \
file://10_utf16.patch \
file://unknown-encoding.patch \
"
UPSTREAM_CHECK_URI = "https://sourceforge.net/projects/mad/files/libid3tag/"
UPSTREAM_CHECK_REGEX = "/projects/mad/files/libid3tag/(?P<pver>.*)/$"