Binary diff: Heap-based buffer overflow

Binary diff: Heap-based buffer overflow A heap-based buffer overflow in Binary diff might allow remote attackers to execute arbitrary code. bsdiff 2020-03-19 2020-03-19 701848 local, remote 4.3-r4 4.3-r4

bsdiff and bspatch are tools for building and applying patches to binary files.

It was discovered that the implementation of bspatch did not check for a negative value on numbers of bytes read from the diff and extra streams.

A remote attacker could entice a user to apply a specially crafted patch using bspatch, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition.

There is no known workaround at this time.

All Binary diff users should upgrade to the latest version:


      # emerge --sync
      # emerge --ask --oneshot --verbose ">=dev-util/bsdiff-4.3-r4"

CVE-2014-9862 whissi whissi