RHSA-2020:0775HighCVSS 7.0

Red Hat Security Advisory: qemu-kvm security update

Published
March 10, 2020
Last Modified
August 6, 2026

🔗 CVE IDs covered (3)

CVE-2019-14378 →CVE-2019-15890 →CVE-2020-7039 →

📋 Description

CVE-2019-14378 — QEMU: slirp: heap buffer overflow during packet reassembly CVE-2019-15890 — QEMU: Slirp: use-after-free during packet reassembly CVE-2020-7039 — QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu()

🎯 Affected products36

  • Red Hat Enterprise Linux Desktop (v. 6)
  • Red Hat Enterprise Linux HPC Node (v. 6)
  • Red Hat Enterprise Linux Server (v. 6)
  • Red Hat Enterprise Linux Workstation (v. 6)
  • qemu-guest-agent-2:0.12.1.2-2.506.el6_10.6.i686 as a component of Red Hat Enterprise Linux Desktop (v. 6)
  • qemu-guest-agent-2:0.12.1.2-2.506.el6_10.6.i686 as a component of Red Hat Enterprise Linux Server (v. 6)
  • qemu-guest-agent-2:0.12.1.2-2.506.el6_10.6.i686 as a component of Red Hat Enterprise Linux Workstation (v. 6)
  • qemu-guest-agent-2:0.12.1.2-2.506.el6_10.6.ppc64 as a component of Red Hat Enterprise Linux Server (v. 6)
  • qemu-guest-agent-2:0.12.1.2-2.506.el6_10.6.x86_64 as a component of Red Hat Enterprise Linux Desktop (v. 6)
  • qemu-guest-agent-2:0.12.1.2-2.506.el6_10.6.x86_64 as a component of Red Hat Enterprise Linux HPC Node (v. 6)
  • qemu-guest-agent-2:0.12.1.2-2.506.el6_10.6.x86_64 as a component of Red Hat Enterprise Linux Server (v. 6)
  • qemu-guest-agent-2:0.12.1.2-2.506.el6_10.6.x86_64 as a component of Red Hat Enterprise Linux Workstation (v. 6)
  • qemu-img-2:0.12.1.2-2.506.el6_10.6.x86_64 as a component of Red Hat Enterprise Linux Desktop (v. 6)
  • qemu-img-2:0.12.1.2-2.506.el6_10.6.x86_64 as a component of Red Hat Enterprise Linux HPC Node (v. 6)
  • qemu-img-2:0.12.1.2-2.506.el6_10.6.x86_64 as a component of Red Hat Enterprise Linux Server (v. 6)
  • qemu-img-2:0.12.1.2-2.506.el6_10.6.x86_64 as a component of Red Hat Enterprise Linux Workstation (v. 6)
  • qemu-kvm-2:0.12.1.2-2.506.el6_10.6.src as a component of Red Hat Enterprise Linux Desktop (v. 6)
  • qemu-kvm-2:0.12.1.2-2.506.el6_10.6.src as a component of Red Hat Enterprise Linux HPC Node (v. 6)
  • qemu-kvm-2:0.12.1.2-2.506.el6_10.6.src as a component of Red Hat Enterprise Linux Server (v. 6)
  • qemu-kvm-2:0.12.1.2-2.506.el6_10.6.src as a component of Red Hat Enterprise Linux Workstation (v. 6)
  • qemu-kvm-2:0.12.1.2-2.506.el6_10.6.x86_64 as a component of Red Hat Enterprise Linux Desktop (v. 6)
  • qemu-kvm-2:0.12.1.2-2.506.el6_10.6.x86_64 as a component of Red Hat Enterprise Linux HPC Node (v. 6)
  • qemu-kvm-2:0.12.1.2-2.506.el6_10.6.x86_64 as a component of Red Hat Enterprise Linux Server (v. 6)
  • qemu-kvm-2:0.12.1.2-2.506.el6_10.6.x86_64 as a component of Red Hat Enterprise Linux Workstation (v. 6)
  • qemu-kvm-debuginfo-2:0.12.1.2-2.506.el6_10.6.i686 as a component of Red Hat Enterprise Linux Desktop (v. 6)
  • qemu-kvm-debuginfo-2:0.12.1.2-2.506.el6_10.6.i686 as a component of Red Hat Enterprise Linux Server (v. 6)
  • qemu-kvm-debuginfo-2:0.12.1.2-2.506.el6_10.6.i686 as a component of Red Hat Enterprise Linux Workstation (v. 6)
  • qemu-kvm-debuginfo-2:0.12.1.2-2.506.el6_10.6.ppc64 as a component of Red Hat Enterprise Linux Server (v. 6)
  • qemu-kvm-debuginfo-2:0.12.1.2-2.506.el6_10.6.x86_64 as a component of Red Hat Enterprise Linux Desktop (v. 6)
  • qemu-kvm-debuginfo-2:0.12.1.2-2.506.el6_10.6.x86_64 as a component of Red Hat Enterprise Linux HPC Node (v. 6)
  • +6 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect. Workaround: There is no external mitigation to prevent this out-of-bounds heap memory access. Workaround: This issue can only be resolved by applying updates. Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

🔗 References (6)