Sandstorm Cap’n Proto before 0.4.1.1 and 0.5.x before 0.5.1.2, when an application invokes the totalSize method on an object reader, allows remote peers to cause a denial of service (CPU consumption) via a crafted small message, which triggers a “tight” for loop. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-2312.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2313
Reference (s):
- https://github.com/capnproto/capnproto/blob/master/security-advisories/2015-03-05-0-c%2B%2B-addl-cpu-amplification.md
- https://github.com/capnproto/capnproto/commit/80149744bdafa3ad4eedc83f8ab675e27baee868
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=780568
- MLIST:[oss-security] 20150317 Re: CVE Request: Cap’n Proto: Several issues
- URL: http://www.openwall.com/lists/oss-security/2015/03/17/3