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Fencer Vulns
high 7.5

CVE-2017-15268 json

Qemu through 2.10.0 allows remote attackers to cause a memory leak by triggering slow data-channel read operations, related to io/channel-w…

published 2017-10-12 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-6728

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.3%
EPSS 4.3% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

Qemu through 2.10.0 allows remote attackers to cause a memory leak by triggering slow data-channel read operations, related to io/channel-websock.c.

Patch / fix

  • qemu Debian 14, Debian 13, Debian 12 1:2.11+dfsg-1

debian advisories DEBIAN-CVE-2017-15268

  • qemu-kvm-rhev RHEL 7, openstack 12, openstack 11 +3 more 10:2.10.0-21.el7
  • qemu-img-rhev RHEL 7, openstack 12, openstack 11 +3 more 10:2.10.0-21.el7
  • qemu-kvm-tools-rhev RHEL 7, openstack 12, openstack 11 +3 more 10:2.10.0-21.el7
  • qemu-kvm-common-rhev RHEL 7, openstack 12, openstack 11 +3 more 10:2.10.0-21.el7
  • qemu-kvm RHEL 7 10:1.5.3-156.el7
  • qemu-img RHEL 7 10:1.5.3-156.el7
  • qemu-kvm-tools RHEL 7 10:1.5.3-156.el7
  • qemu-kvm-common RHEL 7 10:1.5.3-156.el7

red hat advisories RHSA-2018:1113RHSA-2018:1104RHSA-2018:0816

  • qemu SLES for SAP 12 SP2, SLES for Raspberry Pi 12 SP2, SLES 12 SP2 +1 more 2.6.2-41.22.2
  • qemu SLES for SAP 12 SP3, SLES 12 SP3, SLED 12 SP3 2.9.1-6.6.3

suse advisories SUSE-SU-2017:2936-1SUSE-SU-2017:2924-1

  • qemu openSUSE Tumbleweed 6.1.0-32.1

opensuse advisories openSUSE-SU-2024:11287-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-15268 updated cvss 3.0

QEMU: I/O: potential memory exhaustion via websock connection to VNC

  • Red Hat Enterprise Linux 7 qemu-img-ma, qemu-kvm-ma, qemu-kvm-rhev, qemu-kvm-tools-ma, qemu-kvm-common-ma
    affected: no fix available
  • Red Hat Enterprise Linux Client (v. 7) qemu-img 1.5.3-156.el7, qemu-kvm 1.5.3-156.el7, qemu-kvm-tools 1.5.3-156.el7, qemu-kvm-common 1.5.3-156.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) qemu-img 1.5.3-156.el7, qemu-kvm 1.5.3-156.el7, qemu-kvm-tools 1.5.3-156.el7, qemu-kvm-common 1.5.3-156.el7 Red Hat Enterprise Linux Server (v. 7) qemu-img 1.5.3-156.el7, qemu-kvm 1.5.3-156.el7, qemu-kvm-tools 1.5.3-156.el7, qemu-kvm-common 1.5.3-156.el7 Red Hat Enterprise Linux Workstation (v. 7) qemu-img 1.5.3-156.el7, qemu-kvm 1.5.3-156.el7, qemu-kvm-tools 1.5.3-156.el7, qemu-kvm-common 1.5.3-156.el7
    fixed: vendor fix RHSA-2018:0816
  • Red Hat OpenStack Platform 8.0 (Liberty) qemu-img-rhev 2.10.0-21.el7, qemu-kvm-rhev 2.10.0-21.el7, qemu-kvm-tools-rhev 2.10.0-21.el7, qemu-kvm-common-rhev 2.10.0-21.el7 Red Hat OpenStack Platform 9.0 qemu-img-rhev 2.10.0-21.el7, qemu-kvm-rhev 2.10.0-21.el7, qemu-kvm-tools-rhev 2.10.0-21.el7, qemu-kvm-common-rhev 2.10.0-21.el7 Red Hat OpenStack Platform 10.0 qemu-img-rhev 2.10.0-21.el7, qemu-kvm-rhev 2.10.0-21.el7, qemu-kvm-tools-rhev 2.10.0-21.el7, qemu-kvm-common-rhev 2.10.0-21.el7 Red Hat OpenStack Platform 11.0 qemu-img-rhev 2.10.0-21.el7, qemu-kvm-rhev 2.10.0-21.el7, qemu-kvm-tools-rhev 2.10.0-21.el7, qemu-kvm-common-rhev 2.10.0-21.el7 Red Hat OpenStack Platform 12.0 qemu-img-rhev 2.10.0-21.el7, qemu-kvm-rhev 2.10.0-21.el7, qemu-kvm-tools-rhev 2.10.0-21.el7, qemu-kvm-common-rhev 2.10.0-21.el7
    fixed: vendor fix RHSA-2018:1113
  • Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts qemu-img-rhev 2.10.0-21.el7, qemu-kvm-rhev 2.10.0-21.el7, qemu-kvm-tools-rhev 2.10.0-21.el7, qemu-kvm-common-rhev 2.10.0-21.el7
    fixed: vendor fix RHSA-2018:1104
  • Red Hat Enterprise Linux 5 kvm, xen Red Hat Enterprise Linux 6 qemu-img, qemu-kvm, qemu-kvm-rhev, qemu-kvm-tools, qemu-guest-agent, qemu-guest-agent-win32 Red Hat Enterprise Linux OpenStack Platform 6 (Juno) qemu-kvm-rhev Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) qemu-img-rhev, qemu-kvm-rhev, libcacard-rhev, qemu-kvm-tools-rhev, libcacard-devel-rhev, libcacard-tools-rhev, +1 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

4.27% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • bugs.launchpad.net https://bugs.launchpad.net/qemu/+bug/1718964 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-772 Missing Release of Resource after Effective Lifetime

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.