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TI-2017-05503 Aliases CVE-2017-7892GHSA-q5jr-ph84-c3r5

Sandstorm Cap'n Proto before 0.5.3.1 allows remote crashes related to a compiler…

Priority LOW 37CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.01839 79th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:capnproto:capnproto:*:*:*:*:*:*:*:*up to 0.5.3Vulnerablecapnproto
  • cpe:2.3:a:capnproto:capnproto:*:*:*:*:*:*:*:* Versions up to 0.5.3 Vulnerable ·capnproto

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-7892
  2. 2026-10-03 Alias added: GHSA-q5jr-ph84-c3r5

References

Advisory 1

  • TI-2015-02037 Integer underflow in Sandstorm Cap'n Proto before 0.4.1.1 and 0.5.x before 0.5.1.1 might… CVSS 3.0CRITICAL 9.8
  • TI-2023-26094 Cap'n Proto WebSocket message can cause crash CVSS 3.1CRITICAL 9.8
  • TI-2015-02036 Integer overflow in layout.c++ in Sandstorm Cap'n Proto before 0.4.1.1 and 0.5.x before… CVSS 3.1CRITICAL 9.1
  • TI-2015-02039 Sandstorm Cap'n Proto before 0.4.1.1 and 0.5.x before 0.5.1.2, when an application… CVSS 3.0HIGH 7.5
  • TI-2015-02038 Sandstorm Cap'n Proto before 0.4.1.1 and 0.5.x before 0.5.1.1 allows remote peers to… CVSS 3.0HIGH 7.5
  • TI-2026-24769 Cap'n Proto: Integer overflow in KJ-HTTP chunk size CVSS 4.0MEDIUM 6.3
See all 8 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences