Vulnerability Description
Sandstorm Cap'n Proto before 0.5.3.1 allows remote crashes related to a compiler optimization. A remote attacker can trigger a segfault in a 32-bit libcapnp application because Cap'n Proto relies on pointer arithmetic calculations that overflow. An example compiler with optimization that elides a bounds check in such calculations is Apple LLVM version 8.1.0 (clang-802.0.41). The attack vector is a crafted far pointer within a message.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Capnproto | Capnproto | <= 0.5.3 |
Related Weaknesses (CWE)
References
- https://github.com/sandstorm-io/capnproto/blob/master/security-advisories/2017-0Third Party Advisory
- https://github.com/sandstorm-io/capnproto/blob/master/security-advisories/2017-0Third Party Advisory
FAQ
What is CVE-2017-7892?
CVE-2017-7892 is a vulnerability with a CVSS score of 7.5 (HIGH). Sandstorm Cap'n Proto before 0.5.3.1 allows remote crashes related to a compiler optimization. A remote attacker can trigger a segfault in a 32-bit libcapnp application because Cap'n Proto relies on p...
How severe is CVE-2017-7892?
CVE-2017-7892 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-7892?
Check the references section above for vendor advisories and patch information. Affected products include: Capnproto Capnproto.