Security fixes:
#562 CVE-2022-25235 -- Passing malformed 2- and 3-byte UTF-8
sequences (e.g. from start tag names) to the XML
processing application on top of Expat can cause
arbitrary damage (e.g. code execution) depending
on how invalid UTF-8 is handled inside the XML
processor; validation was not their job but Expat's.
Exploits with code execution are known to exist.
#561 CVE-2022-25236 -- Passing (one or more) namespace separator
characters in "xmlns[:prefix]" attribute values
made Expat send malformed tag names to the XML
processor on top of Expat which can cause
arbitrary damage (e.g. code execution) depending
on such unexpectable cases are handled inside the XML
processor; validation was not their job but Expat's.
Exploits with code execution are known to exist.
#558 CVE-2022-25313 -- Fix stack exhaustion in doctype parsing
that could be triggered by e.g. a 2 megabytes
file with a large number of opening braces.
Expected impact is denial of service or potentially
arbitrary code execution.
#560 CVE-2022-25314 -- Fix integer overflow in function copyString;
only affects the encoding name parameter at parser creation
time which is often hardcoded (rather than user input),
takes a value in the gigabytes to trigger, and a 64-bit
machine. Expected impact is denial of service.
#559 CVE-2022-25315 -- Fix integer overflow in function storeRawNames;
needs input in the gigabytes and a 64-bit machine.
Expected impact is denial of service or potentially
arbitrary code execution.
https://blog.hartwork.org/posts/expat-2-4-5-released/https://github.com/libexpat/libexpat/blob/R_2_4_5/expat/Changes
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Fixes the following security vulnerability:
CVE-2019-15903: In libexpat before 2.2.8, crafted XML input could fool the
parser into changing from DTD parsing to document parsing too early; a
consecutive call to XML_GetCurrentLineNumber (or XML_GetCurrentColumnNumber)
then resulted in a heap-based buffer over-read.
While we're at it, also change to use .tar.xz rather than the bigger
.tar.bz2.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Fixes the following security vulnerabilites:
CVE-2018-20843: In libexpat in Expat before 2.2.7, XML input including XML
names that contain a large number of colons could make the XML parser
consume a high amount of RAM and CPU resources while processing (enough to
be usable for denial-of-service attacks).
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Upstream migrated to automake for autotools: the "installlib" target
no longer exist, and we can use the standard "install" target, and
therefore drop the special INSTALL_STAGING_OPTS and
INSTALL_TARGET_OPTS variables.
Add license hash.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Fixes:
- CVE-2017-9233 - External entity infinite loop DoS. See:
https://libexpat.github.io/doc/cve-2017-9233/
- CVE-2016-9063 -- Detect integer overflow
And further more:
- Fix regression from fix to CVE-2016-0718 cutting off longer tag names.
- Extend fix for CVE-2016-5300 (use getrandom() if available).
- Extend fix for CVE-2012-0876 (Change hash algorithm to William Ahern's
version of SipHash).
Also add an upstream patch to fix detection of getrandom().
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Fixes:
CVE-2016-4472 - Improve insufficient fix to CVE-2015-1283 /
CVE-2015-2716 introduced with Expat 2.1.1
CVE-2016-5300 - Use more entropy for hash initialization than the
original fix to CVE-2012-0876
CVE-2012-6702 - Resolve troublesome internal call to srand that was
introduced with Expat 2.1.0 when addressing CVE-2012-0876
Signed-off-by: Gustavo Zacarias <gustavo.zacarias@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Drop 0001-fix-CVE-2015-1283.patch since it's upstream.
Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Since SourceForge sometimes serves us faulty tarballs, we can tons of
autobuild failures:
http://autobuild.buildroot.org/results/9fb/9fba5bf086a4e7a29e5f7156ec43847db7aacfc4/http://autobuild.buildroot.org/results/6c8/6c837b244c45ac3b3a887734a371cd6d226cf216/
...
Fix that by adding hash files for all SourceForge-hosted packages (thos
etht did not already have it).
We normally prefer to use hashes published by upstream, but hunting them
all one by one is a tedious task, so those hashes were all locally
computed with a script that searched for SF-hosted packages, downloades
the associated tarball, computed the hash, and stored it in the
corresponding .hash file.
Also, SF publishes sha1 hashes, while I used the stronger sha256, since
sha1 is now considered to be relatively weak.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Peter Korsgaard <jacmet@uclibc.org>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
Cc: Richard Braun <rbraun@sceen.net>
Cc: Nathaniel Roach <nroach44@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
