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TI-2017-09987 Aliases CVE-2017-13711GHSA-x5xc-9jvw-6v9f

Use-after-free vulnerability in the sofree function in slirp/socket.c in QEMU (aka Quick…

Priority LOW 39CWE-416Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 10 fixed, 5 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.

Summary

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.

Why it matters now

EPSS 0.03841 90th percentileScored 2026-11-07
Fix Partial Red Hat: 3 advisoriesRed Hat: 10 fixed, 5 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*up to 2.10.1VulnerableQEMU
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
  • cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* Versions up to 2.10.1 Vulnerable ·QEMU
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian

Remediation

Red Hat 3 advisories

  • RHSA-2018:1113 Released 2018-04-11 · Red Hat rating Moderate
    qemu-kvm-rhev security and bug fix update
    • Red Hat OpenStack Platform 10.0 qemu-img-rhev-10:2.10.0-21.el7, qemu-kvm-common-rhev-10:2.10.0-21.el7, qemu-kvm-rhev-10:2.10.0-21.el7 +1
    • Red Hat OpenStack Platform 11.0 qemu-img-rhev-10:2.10.0-21.el7, qemu-kvm-common-rhev-10:2.10.0-21.el7, qemu-kvm-rhev-10:2.10.0-21.el7 +1
    • Red Hat OpenStack Platform 12.0 qemu-img-rhev-10:2.10.0-21.el7, qemu-kvm-common-rhev-10:2.10.0-21.el7, qemu-kvm-rhev-10:2.10.0-21.el7 +1
    • Red Hat OpenStack Platform 8.0 (Liberty) qemu-img-rhev-10:2.10.0-21.el7, qemu-kvm-common-rhev-10:2.10.0-21.el7, qemu-kvm-rhev-10:2.10.0-21.el7 +1
    • Red Hat OpenStack Platform 9.0 qemu-img-rhev-10:2.10.0-21.el7, qemu-kvm-common-rhev-10:2.10.0-21.el7, qemu-kvm-rhev-10:2.10.0-21.el7 +1
  • RHSA-2018:1104 Released 2018-04-10 · Red Hat rating Important
    qemu-kvm-rhev security, bug fix, and enhancement update
    • Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts qemu-img-rhev-10:2.10.0-21.el7, qemu-kvm-common-rhev-10:2.10.0-21.el7, qemu-kvm-rhev-10:2.10.0-21.el7 +1
  • RHSA-2018:0816 Released 2018-04-10 · Red Hat rating Low
    qemu-kvm security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) qemu-img-10:1.5.3-156.el7, qemu-kvm-10:1.5.3-156.el7, qemu-kvm-common-10:1.5.3-156.el7 +1
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) qemu-img-10:1.5.3-156.el7, qemu-kvm-10:1.5.3-156.el7, qemu-kvm-common-10:1.5.3-156.el7 +1
    • Red Hat Enterprise Linux Server (v. 7) qemu-img-10:1.5.3-156.el7, qemu-kvm-10:1.5.3-156.el7, qemu-kvm-common-10:1.5.3-156.el7 +1
    • Red Hat Enterprise Linux Workstation (v. 7) qemu-img-10:1.5.3-156.el7, qemu-kvm-10:1.5.3-156.el7, qemu-kvm-common-10:1.5.3-156.el7 +1

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 6AffectedNo fix yet
Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux OpenStack Platform 6 (Juno)AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2018:0816
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2018:0816
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2018:0816
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2018:0816
Red Hat OpenStack Platform 10.0Fixed RHSA-2018:1113
Red Hat OpenStack Platform 11.0Fixed RHSA-2018:1113
Red Hat OpenStack Platform 12.0Fixed RHSA-2018:1113
Red Hat OpenStack Platform 8.0 (Liberty)Fixed RHSA-2018:1113
Red Hat OpenStack Platform 9.0Fixed RHSA-2018:1113
Red Hat Virtualization 4 Management Agent for RHEL 7 HostsFixed RHSA-2018:1104
Not affected: 1 product
  • Red Hat Enterprise Linux 5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-13711
  2. 2026-10-03 Alias added: GHSA-x5xc-9jvw-6v9f
  3. 2026-10-19 EPSS moved to the 90th–95th percentile

References

Patch 3

Advisory 4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences