VDB
CVE-2017-7892
CVE-2017-7892
PUBLISHED
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.
EPSS 0.50% · 66.4th percentile
Risk Scores
EPSS Score
0.50%
66.4th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:16.04:LTS | capnproto | 0.5.3-2ubuntu1, 0.4.0-1ubuntu3, 0 |
| Ubuntu:14.04:LTS | capnproto | 0.4.0-1ubuntu2, *, 0 |
| Ubuntu:18.04:LTS | capnproto | 0, 0.5.3-2ubuntu2 |
Exploit Intelligence
Timeline
- Apr 17, 2017 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Dec 27, 2021 EPSS Score
- Feb 28, 2022 EPSS Score
- May 2, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 5, 2022 EPSS Score
- Nov 6, 2022 EPSS Score
- Jan 8, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2017-7892 third-party-advisory
- https://github.com/sandstorm-io/capnproto/blob/master/security-advisories/2017-04-17-0-apple-clang-elides-bounds-check.md third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2017-7892 third-party-advisory