7.5high

CVE-2017-9524

The qemu-nbd server in QEMU (aka Quick Emulator), when built with the Network Block Device (NBD) Server support, allows remote attackers to…

Published 9 y ago · modified 4 mo ago · JSON

CVSS
7.5
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
4.1%
percentile 91%
Public exploits
0
none known

Summary

The qemu-nbd server in QEMU (aka Quick Emulator), when built with the Network Block Device (NBD) Server support, allows remote attackers to cause a denial of service (segmentation fault and server crash) by leveraging failure to ensure that all initialization occurs before talking to a client in the nbd_negotiate function.

Exploit prediction (EPSS)

4.09% probability of exploitation in the next 30 days, higher than 91% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.17.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD2.05.0AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-20 Improper Input Validation

References

  • access.redhat.com /errata/RHSA-2017:1681 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • openwall.com /lists/oss-security/2017/06/12/1 · mailing-list, x_refsource_MLIST, x_transferred
  • access.redhat.com /errata/RHSA-2017:1682 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • securityfocus.com /bid/99011 · vdb-entry, x_refsource_BID, x_transferred
  • lists.gnu.org /archive/html/qemu-devel/2017-05/msg06240.html · mailing-list, x_refsource_MLIST, x_transferred
  • access.redhat.com /errata/RHSA-2017:2408 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • debian.org /security/2017/dsa-3925 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • lists.gnu.org /archive/html/qemu-devel/2017-06/msg02321.html · mailing-list, x_refsource_MLIST, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.