Augie Fackler <augie@google.com> [Thu, 03 May 2018 12:54:20 -0400] rev 37864
mpatch: introduce a safesub() helper as well
Same reason as safeadd().
Augie Fackler <augie@google.com> [Mon, 30 Apr 2018 22:13:42 -0400] rev 37863
mpatch: introduce a safeadd() helper to work around UB int overflow
We're about to make extensive use of this. This change duplicates some
stdbool.h portability hacks from cext/util.h. We should probably clean
that up in the future, but we'll skip that for now in order to make
security backports easier.
Augie Fackler <augie@google.com> [Sat, 28 Apr 2018 10:09:12 -0400] rev 37862
mpatch: ensure fragment start isn't past the end of orig (SEC)
Caught by oss-fuzz fuzzer during development.
This defect is OVE-20180430-0004. A CVE has not been obtained as of
this writing.
Augie Fackler <augie@google.com> [Sat, 28 Apr 2018 02:04:56 -0400] rev 37861
mpatch: protect against underflow in mpatch_apply (SEC)
Also caught by oss-fuzz fuzzer during development.
This defect is OVE-20180430-0002. A CVE has not been obtained as of this writing.
Augie Fackler <augie@google.com> [Sat, 28 Apr 2018 00:42:16 -0400] rev 37860
mpatch: be more careful about parsing binary patch data (SEC)
It appears to have been possible to trivially walk off the end of an
allocated region with a malformed patch. Oops.
Caught when writing an mpatch fuzzer for oss-fuzz.
This defect is OVE-20180430-0001. A CVE has not been obtained as of
this writing.
Gregory Szorc <gregory.szorc@gmail.com> [Wed, 06 Jun 2018 09:14:33 -0700] rev 37859
zstandard: pull in bug fixes from upstream 0.9.1 release (issue5884)
This changeset contains the meaningful code changes from
python-zstandard's 0.9.1 release. The main fix is to restore
support for compiling with mingw.