CVE-2017-13711

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-09-01 · updated 2026-06-17
Weakness: CWE-416

Description

Use-after-free vulnerability in the sofree function in slirp/socket.c in QEMU (aka Quick Emulator) allows attackers to cause a denial of service (QEMU instance crash) by leveraging failure to properly clear ifq_so from pending packets.

Affected products

Debian Linux: 9.0
QEMU: through 2.10.1

References

http://www.debian.org/security/2017/dsa-3991
http://www.openwall.com/lists/oss-security/2017/08/29/6
http://www.securityfocus.com/bid/100534
https://access.redhat.com/errata/RHSA-2018:0816
https://access.redhat.com/errata/RHSA-2018:1104
https://access.redhat.com/errata/RHSA-2018:1113
https://bugzilla.redhat.com/show_bug.cgi?id=1486400
https://lists.gnu.org/archive/html/qemu-devel/2017-08/msg05201.html
http://www.debian.org/security/2017/dsa-3991
http://www.openwall.com/lists/oss-security/2017/08/29/6
http://www.securityfocus.com/bid/100534
https://access.redhat.com/errata/RHSA-2018:0816

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