SB2017080922 - Input validation error in capnproto
Published: August 9, 2017 Updated: August 8, 2020
Security Bulletin ID
SB2017080922
Severity
Medium
Patch available
NO
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2015-2313)
The vulnerability allows remote peers to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (CPU consumption) via a crafted small message, which triggers a "tight" for loop.
Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.
References
- 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-c%2B%2B-addl-cpu-amplification.md
- https://github.com/capnproto/capnproto/commit/80149744bdafa3ad4eedc83f8ab675e27baee868