CVE-2015-2310

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-08-09 · updated 2026-06-17
Weakness: CWE-190

Description

Integer overflow in layout.c++ in Sandstorm Cap'n Proto before 0.4.1.1 and 0.5.x before 0.5.1.1 allows remote peers to cause a denial of service or possibly obtain sensitive information from memory via a crafted message, related to pointer validation.

Affected products

capnproto: before 0.4.1.1; from 0.5.0 before 0.5.1.1 — fixed in 0.4.1.1, 0.5.1.1

How to fix

Upgrade to a fixed version: capnproto 0.4.1.1, 0.5.1.1. Check the vendor advisory for mitigations.

References

http://www.openwall.com/lists/oss-security/2015/03/17/3
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=780565
https://github.com/capnproto/capnproto/blob/master/security-advisories/2015-03-02-0-c%2B%2B-integer-overflow.md
https://github.com/capnproto/capnproto/commit/f343f0dbd0a2e87f17cd74f14186ed73e3fbdbfa
http://www.openwall.com/lists/oss-security/2015/03/17/3
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=780565
https://github.com/capnproto/capnproto/blob/master/security-advisories/2015-03-02-0-c%2B%2B-integer-overflow.md
https://github.com/capnproto/capnproto/commit/f343f0dbd0a2e87f17cd74f14186ed73e3fbdbfa

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