CVE-2015-2313 Information

Description

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.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

http://www.openwall.com/lists/oss-security/2015/03/17/3 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=780568 https://github.com/capnproto/capnproto/blob/master/security-advisories/2015-03-05-0-c2B2B-addl-cpu-amplification.md https://github.com/capnproto/capnproto/commit/80149744bdafa3ad4eedc83f8ab675e27baee868

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5