vulnwire
5.3med

CVE-2017-7539

An assertion-failure flaw was found in Qemu before 2.10.1, in the Network Block Device (NBD) server's initial connection negotiation, where…

Published 8 y ago · modified 4 mo ago · JSON

CVSS
5.3
v3.0 · CNA
CISA KEV
No
not known exploited
EPSS
5.5%
percentile 93%
Public exploits
0
none known

An assertion-failure flaw was found in Qemu before 2.10.1, in the Network Block Device (NBD) server's initial connection negotiation, where the I/O coroutine was undefined. This could crash the qemu-nbd server if a client sent unexpected data during connection negotiation. A remote user or process could use this flaw to crash the qemu-nbd server resulting in denial of service.

Exploit prediction (EPSS)

5.46% probability of exploitation in the next 30 days, higher than 93% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
CNA3.05.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CNA3.05.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD3.07.5CVSS:3.0/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

Affected products

  • QEMU Qemu

Classification

Weakness

References

  • access.redhat.com /errata/RHSA-2017:2628 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • git.qemu.org /?p=qemu.git%3Ba=commitdiff%3Bh=2b0bbc4f8809c972bad134bc1a2570dbb01dea0b · x_refsource_CONFIRM, x_transferred
  • access.redhat.com /errata/RHSA-2017:3473 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • access.redhat.com /errata/RHSA-2017:3470 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • access.redhat.com /errata/RHSA-2017:3472 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • access.redhat.com /errata/RHSA-2017:3474 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • access.redhat.com /errata/RHSA-2017:3471 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • git.qemu.org /?p=qemu.git%3Ba=commitdiff%3Bh=ff82911cd3f69f028f2537825c9720ff78bc3f19 · x_refsource_CONFIRM, x_transferred
  • openwall.com /lists/oss-security/2017/07/21/4 · mailing-list, x_refsource_MLIST, x_transferred
  • access.redhat.com /errata/RHSA-2017:3466 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • bugzilla.redhat.com /show_bug.cgi?id=CVE-2017-7539 · x_refsource_CONFIRM, x_transferred
  • securityfocus.com /bid/99944 · vdb-entry, x_refsource_BID, 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.