CVE-2017-18030

Severity: medium (CVSS 4.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-01-23 · updated 2026-06-17
Weakness: CWE-125

Description

The cirrus_invalidate_region function in hw/display/cirrus_vga.c in Qemu allows local OS guest privileged users to cause a denial of service (out-of-bounds array access and QEMU process crash) via vectors related to negative pitch.

Affected products

Debian Linux: 8.0
QEMU: through 2.8.1.1

References

http://www.openwall.com/lists/oss-security/2018/01/15/3
http://www.securityfocus.com/bid/102520
https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=f153b563f8cf121aebf5a2fff5f0110faf58ccb3
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
http://www.openwall.com/lists/oss-security/2018/01/15/3
http://www.securityfocus.com/bid/102520
https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=f153b563f8cf121aebf5a2fff5f0110faf58ccb3
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html

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