CVE-2017-5579

Severity: medium (CVSS 6.5 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: 2017-03-15 · updated 2026-06-17
Weakness: CWE-401

Description

Memory leak in the serial_exit_core function in hw/char/serial.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (host memory consumption and QEMU process crash) via a large number of device unplug operations.

Affected products

Debian Linux: 8.0
QEMU: through 2.8.1.1; 2.9.0-rc0, 2.9.0-rc1, 2.9.0-rc2, 2.9.0-rc3, 2.9.0-rc4, 2.9.0-rc5

References

http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=8409dc884a201bf74b30a9d232b6bbdd00cb7e2b
http://www.openwall.com/lists/oss-security/2017/01/24/8
http://www.openwall.com/lists/oss-security/2017/01/25/3
http://www.securityfocus.com/bid/95780
https://access.redhat.com/errata/RHSA-2017:2392
https://access.redhat.com/errata/RHSA-2017:2408
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
https://security.gentoo.org/glsa/201702-28
http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=8409dc884a201bf74b30a9d232b6bbdd00cb7e2b
http://www.openwall.com/lists/oss-security/2017/01/24/8
http://www.openwall.com/lists/oss-security/2017/01/25/3
http://www.securityfocus.com/bid/95780

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