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CVE-2017-7892

N/A
Published: April 17, 2017 at 09:00 PM UTC
Updated: June 17, 2026 at 01:25 AM UTC
1 product affected across 1 vendorCapnproto

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Severity
N/A
Exploit prediction
EPSS 2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Capnproto· Capnproto
95%
v ≤ 0.5.3

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://github.com/sandstorm-io/capnproto/blob/master/security-advisories/2017-04-17-0-apple-clang-elides-bounds-check.md

CVSS

5MEDIUM[email protected]
Confidentiality
NONE
Integrity
NONE
Availability
PARTIAL
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20

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