CVE-2017-11721

critical

Published 2017-08-03 · Modified 2026-05-13

CVSS v3

9.8

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2

7.5

VIR risk

9.8

Description

Buffer overflow in ioquake3 before 2017-08-02 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted packet.

Predictions

Exploit likelihood

97%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2017-11721

OS impact

OS	Version	Status	Fixed in
debian	bookworm	fixed	`1.36+u20170803+dfsg1-1`
debian	bullseye	fixed	`1.36+u20170803+dfsg1-1`
debian	forky	fixed	`1.36+u20170803+dfsg1-1`
debian	sid	fixed	`1.36+u20170803+dfsg1-1`
debian	trixie	fixed	`1.36+u20170803+dfsg1-1`

Application impact

Vendor	Product	Versions	Fixed
ioquake3	ioquake3	`{"endIncluding":"2017-07-31"}`

References

http://www.debian.org/security/2017/dsa-3941
http://www.debian.org/security/2017/dsa-3948
https://github.com/ioquake/ioq3/commit/d2b1d124d4055c2fcbe5126863487c52fd58cca1
https://security-tracker.debian.org/tracker/CVE-2017-11721

CWEs

CWE-119

Verify integrity in audit chain (admin only). AS-IS.