CVE catalog

CVE-2017-17969

p7zip: CVE-2017-17969

Severity: Critical · CVSS 9.1CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Published: Jan 30, 2018, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 4.99% · Oct 25, 2026

Heap-based buffer overflow in the NCompress::NShrink::CDecoder::CodeReal method in 7-Zip before 18.00 and p7zip allows remote attackers to cause a denial of service (out-of-bounds write) or potentially execute arbitrary code via a crafted ZIP archive.

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	p7zip	trixie	`16.02+transitional.1`	fixed
Debian	p7zip	bookworm	`16.02+really26.01+dfsg-0+deb12u1`	fixed
Debian	p7zip	bookworm-security	`16.02+really26.02+dfsg-0+deb12u1`	fixed
Alpine	p7zip	3.10	`16.02-r2`	fixed
Alpine	p7zip	3.11	`16.02-r2`	fixed
Alpine	p7zip	3.12	`16.02-r2`	fixed
Alpine	p7zip	3.13	`16.02-r2`	fixed
Alpine	p7zip	3.14	`16.02-r2`	fixed
Alpine	p7zip	3.15	`16.02-r2`	fixed
Alpine	p7zip	3.16	`16.02-r2`	fixed
Alpine	p7zip	3.17	`16.02-r2`	fixed
Alpine	p7zip	3.5	`16.02-r2`	fixed
Alpine	p7zip	3.6	`16.02-r2`	fixed
Alpine	p7zip	3.7	`16.02-r2`	fixed
Alpine	p7zip	3.8	`16.02-r2`	fixed
Alpine	p7zip	3.9	`16.02-r2`	fixed
Ubuntu	p7zip	14.04	`9.20.1~dfsg.1-4`	vulnerable
Ubuntu	p7zip	14.04	`9.20.1~dfsg.1-4+deb7u1build0.14.04.1`	vulnerable
Ubuntu	p7zip	14.04	`9.20.1~dfsg.1-4+deb7u2build0.14.04.1`	vulnerable
Ubuntu	p7zip	14.04	`9.20.1~dfsg.1-4+deb7u3build0.14.04.1`	fixed
Ubuntu	p7zip	16.04	`9.20.1~dfsg.1-4.2`	vulnerable
Ubuntu	p7zip	16.04	`9.20.1~dfsg.1-4.2ubuntu0.1`	fixed
Opensuse	p7zip	tumbleweed	`16.02-11.3`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	p7zip	source	trixie	`16.02+dfsg-5`	not yet assigned	Not reported	[888297]
Debian	p7zip	source	bookworm	`16.02+dfsg-5`	not yet assigned	Not reported	[888297]
Alpine	p7zip	apk	3.10	`16.02-r2`	Not reported	ALPINE-CVE-2017-17969	Not reported
Alpine	p7zip	apk	3.11	`16.02-r2`	Not reported	ALPINE-CVE-2017-17969	Not reported
Alpine	p7zip	apk	3.12	`16.02-r2`	Not reported	ALPINE-CVE-2017-17969	Not reported
Alpine	p7zip	apk	3.13	`16.02-r2`	Not reported	ALPINE-CVE-2017-17969	Not reported
Alpine	p7zip	apk	3.14	`16.02-r2`	Not reported	ALPINE-CVE-2017-17969	Not reported
Alpine	p7zip	apk	3.15	`16.02-r2`	Not reported	ALPINE-CVE-2017-17969	Not reported
Alpine	p7zip	apk	3.16	`16.02-r2`	Not reported	ALPINE-CVE-2017-17969	Not reported
Alpine	p7zip	apk	3.17	`16.02-r2`	Not reported	ALPINE-CVE-2017-17969	Not reported
Alpine	p7zip	apk	3.5	`16.02-r2`	Not reported	ALPINE-CVE-2017-17969	Not reported
Alpine	p7zip	apk	3.6	`16.02-r2`	Not reported	ALPINE-CVE-2017-17969	Not reported
Alpine	p7zip	apk	3.7	`16.02-r2`	Not reported	ALPINE-CVE-2017-17969	Not reported
Alpine	p7zip	apk	3.8	`16.02-r2`	Not reported	ALPINE-CVE-2017-17969	Not reported
Alpine	p7zip	apk	3.9	`16.02-r2`	Not reported	ALPINE-CVE-2017-17969	Not reported
Ubuntu	p7zip	deb	14.04	`9.20.1~dfsg.1-4+deb7u3build0.14.04.1`	Not reported	UBUNTU-CVE-2017-17969	Not reported
Ubuntu	p7zip	deb	16.04	`9.20.1~dfsg.1-4.2ubuntu0.1`	Not reported	UBUNTU-CVE-2017-17969	Not reported
Opensuse	p7zip	rpm	tumbleweed	`16.02-11.3`	Not reported	OPENSUSE-SU-2024:11137-1	Not reported

[Debian bug #888297]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[p7zip]Fixed
Details (4)
- 16.02+really26.01+dfsg-0+deb12u1 · amd64 · bookworm
  Fixed · Fixed: 16.02+dfsg-5
  dsa · p7zip · debian · bookworm; dsa · p7zip · debian · 12
- 16.02+really26.01+dfsg-0+deb12u1 · arm64 · bookworm
  Fixed · Fixed: 16.02+dfsg-5
  dsa · p7zip · debian · bookworm; dsa · p7zip · debian · 12
- 16.02+really26.02+dfsg-0+deb12u1 · amd64 · bookworm-security
  Fixed · Fixed: 16.02+dfsg-5
  dsa · p7zip · debian · bookworm; dsa · p7zip · debian · 12
- 16.02+really26.02+dfsg-0+deb12u1 · arm64 · bookworm-security
  Fixed · Fixed: 16.02+dfsg-5
  dsa · p7zip · debian · bookworm; dsa · p7zip · debian · 12
[p7zip-full]Fixed
Source package: [p7zip]
Details (4)
- 16.02+really26.01+dfsg-0+deb12u1 · amd64 · bookworm
  Fixed · Fixed: 16.02+dfsg-5
  dsa · p7zip · debian · bookworm; dsa · p7zip · debian · 12
- 16.02+really26.01+dfsg-0+deb12u1 · arm64 · bookworm
  Fixed · Fixed: 16.02+dfsg-5
  dsa · p7zip · debian · bookworm; dsa · p7zip · debian · 12
- 16.02+really26.02+dfsg-0+deb12u1 · amd64 · bookworm-security
  Fixed · Fixed: 16.02+dfsg-5
  dsa · p7zip · debian · bookworm; dsa · p7zip · debian · 12
- 16.02+really26.02+dfsg-0+deb12u1 · arm64 · bookworm-security
  Fixed · Fixed: 16.02+dfsg-5
  dsa · p7zip · debian · bookworm; dsa · p7zip · debian · 12

[Debian 13 (Trixie)]

[p7zip]Fixed
Details (2)
- 16.02+transitional.1 · all · trixie
  Fixed · Fixed: 16.02+dfsg-5
  dsa · p7zip · debian · 13
- 16.02+transitional.1 · all · trixie
  Fixed · Fixed: 16.02+dfsg-5
  dsa · p7zip · debian · 13
[p7zip-full]Fixed
Source package: [p7zip]
Details (2)
- 16.02+transitional.1 · all · trixie
  Fixed · Fixed: 16.02+dfsg-5
  dsa · p7zip · debian · 13
- 16.02+transitional.1 · all · trixie
  Fixed · Fixed: 16.02+dfsg-5
  dsa · p7zip · debian · 13

Observed: Oct 23, 2026, 5:28:16 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]