Integer underflow in Cap'n Proto - CVE-2015-2311
Published: August 9, 2017 / Updated: August 8, 2020
Vulnerability identifier: #VU38505
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2015-2311
CWE-ID: CWE-191
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
Integer underflow in Sandstorm Cap'n Proto before 0.4.1.1 and 0.5.x before 0.5.1.1 might allow remote peers to cause a denial of service or possibly obtain sensitive information from memory or execute arbitrary code via a crafted message.
Affected software
Cap'n Proto
How to mitigate CVE-2015-2311
Install update from vendor's website.
External References
- http://www.openwall.com/lists/oss-security/2015/03/17/3
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=780566
- https://github.com/capnproto/capnproto/blob/master/security-advisories/2015-03-02-1-c%2B%2B-integer-underflow.md
- https://github.com/capnproto/capnproto/commit/26bcceda72372211063d62aab7e45665faa83633