CVE catalog

CVE-2017-7892

capnproto: CVE-2017-7892

Severity: Low
Published: Apr 17, 2017, 9:59:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 1.84% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	capnproto	sid	`1.5.0-2`	fixed
Debian	capnproto	forky	`1.5.0-2`	fixed
Debian	capnproto	trixie	`1.1.0-2`	fixed
Debian	capnproto	bookworm	`0.9.2-2`	fixed
Ubuntu	capnproto	14.04	`0.2.1-1`	vulnerable
Ubuntu	capnproto	14.04	`0.4.0~git20131030+e7d2778-0ubuntu1`	vulnerable
Ubuntu	capnproto	14.04	`0.4.0-1ubuntu1`	vulnerable
Ubuntu	capnproto	14.04	`0.4.0-1ubuntu2`	vulnerable
Ubuntu	capnproto	14.04	`0.4.0-1ubuntu2.1`	fixed
Ubuntu	capnproto	16.04	`0.4.0-1ubuntu3`	vulnerable
Ubuntu	capnproto	16.04	`0.5.3-2ubuntu1`	vulnerable
Ubuntu	capnproto	16.04	`0.5.3-2ubuntu1.1`	fixed
Ubuntu	capnproto	18.04	`0.5.3-2ubuntu2`	vulnerable
Ubuntu	capnproto	18.04	`0.6.1-1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	capnproto	source	sid	`0.6.1-1`	unimportant	Not reported	[860960]
Debian	capnproto	source	forky	`0.6.1-1`	unimportant	Not reported	[860960]
Debian	capnproto	source	trixie	`0.6.1-1`	unimportant	Not reported	[860960]
Debian	capnproto	source	bookworm	`0.6.1-1`	unimportant	Not reported	[860960]
Ubuntu	capnproto	deb	14.04	`0.4.0-1ubuntu2.1`	Not reported	UBUNTU-CVE-2017-7892	Not reported
Ubuntu	capnproto	deb	16.04	`0.5.3-2ubuntu1.1`	Not reported	UBUNTU-CVE-2017-7892	Not reported
Ubuntu	capnproto	deb	18.04	`0.6.1-1`	Not reported	UBUNTU-CVE-2017-7892	Not reported

[Debian bug #860960]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[capnproto]Fixed
Details (2)
- 0.9.2-2 · amd64 · bookworm
  Fixed · Fixed: 0.6.1-1
  dsa · capnproto · debian · bookworm; dsa · capnproto · debian · 12
- 0.9.2-2 · arm64 · bookworm
  Fixed · Fixed: 0.6.1-1
  dsa · capnproto · debian · bookworm; dsa · capnproto · debian · 12
[libcapnp-0.9.2]Fixed
Source package: [capnproto]
Details (2)
- 0.9.2-2 · amd64 · bookworm
  Fixed · Fixed: 0.6.1-1
  dsa · capnproto · debian · bookworm; dsa · capnproto · debian · 12
- 0.9.2-2 · arm64 · bookworm
  Fixed · Fixed: 0.6.1-1
  dsa · capnproto · debian · bookworm; dsa · capnproto · debian · 12
[libcapnp-dev]Fixed
Source package: [capnproto]
Details (2)
- 0.9.2-2 · amd64 · bookworm
  Fixed · Fixed: 0.6.1-1
  dsa · capnproto · debian · bookworm; dsa · capnproto · debian · 12
- 0.9.2-2 · arm64 · bookworm
  Fixed · Fixed: 0.6.1-1
  dsa · capnproto · debian · bookworm; dsa · capnproto · debian · 12

[Debian 13 (Trixie)]

[capnproto]Fixed
Details (2)
- 1.1.0-2 · amd64 · trixie
  Fixed · Fixed: 0.6.1-1
  dsa · capnproto · debian · 13
- 1.1.0-2 · arm64 · trixie
  Fixed · Fixed: 0.6.1-1
  dsa · capnproto · debian · 13
[libcapnp-1.1.0]Fixed
Source package: [capnproto]
Details (2)
- 1.1.0-2 · amd64 · trixie
  Fixed · Fixed: 0.6.1-1
  dsa · capnproto · debian · 13
- 1.1.0-2 · arm64 · trixie
  Fixed · Fixed: 0.6.1-1
  dsa · capnproto · debian · 13
[libcapnp-dev]Fixed
Source package: [capnproto]
Details (2)
- 1.1.0-2 · amd64 · trixie
  Fixed · Fixed: 0.6.1-1
  dsa · capnproto · debian · 13
- 1.1.0-2 · arm64 · trixie
  Fixed · Fixed: 0.6.1-1
  dsa · capnproto · debian · 13

Observed: Oct 23, 2026, 5:31:17 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]