CVE-2017-11434

Severity: medium (CVSS 5.5 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: 2017-07-25 · updated 2026-06-17
Weakness: CWE-125

Description

The dhcp_decode function in slirp/bootp.c in QEMU (aka Quick Emulator) allows local guest OS users to cause a denial of service (out-of-bounds read and QEMU process crash) via a crafted DHCP options string.

Affected products

Debian Linux: 8.0, 9.0
QEMU: through 2.9.1; 2.10.0-rc0, 2.10.0-rc1, 2.10.0-rc2, 2.10.0-rc3

References

http://www.debian.org/security/2017/dsa-3925
http://www.openwall.com/lists/oss-security/2017/07/19/2
http://www.securityfocus.com/bid/99923
https://bugzilla.redhat.com/show_bug.cgi?id=1472611
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
https://lists.gnu.org/archive/html/qemu-devel/2017-07/msg05001.html
http://www.debian.org/security/2017/dsa-3925
http://www.openwall.com/lists/oss-security/2017/07/19/2
http://www.securityfocus.com/bid/99923
https://bugzilla.redhat.com/show_bug.cgi?id=1472611
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
https://lists.gnu.org/archive/html/qemu-devel/2017-07/msg05001.html

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