Home/CVE/v9fs_wstat in hw/9pfs/9p.c in QEMU allows guest OS users to cause a denial of service (crash) because of a race conditio
CVE

CVE-2018-19489

v9fs_wstat in hw/9pfs/9p.c in QEMU allows guest OS users to cause a denial of service (crash) because of a race conditio

v9fs_wstat in hw/9pfs/9p.c in QEMU allows guest OS users to cause a denial of service (crash) because of a race condition during file renaming.

MEDIUM · CVSS 4.7 EPSS 0.0004
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
▤

Affected Products & Versions

6
qemu<= 3.0.0
qemuall versions
debian linuxall versions
fedoraproject fedoraall versions
canonical ubuntu linuxall versions
opensuse leapall versions
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumPotentially Suspicious Usage Of Qemu
▣

Scoring & Timeline

4.7
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD13 Dec 2018 · 07:29 PM
CVSS VectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

10
suse-csafSUSE-SU-2019:0471-2
usnUSN-3923-1
suse-csafopenSUSE-SU-2019:0254-1
suse-csafSUSE-SU-2019:0582-1
suse-csafSUSE-SU-2019:0489-1
🔗

References & Sources

12
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00042.htmlMailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2018/11/26/1Mailing ListPatchThird Party Advisory
http://www.securityfocus.com/bid/106007Third Party AdvisoryVDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/153326Third Party AdvisoryVDB Entry
https://git.qemu.org/?p=qemu.git
https://lists.debian.org/debian-lts-announce/2019/01/msg00023.htmlMailing ListThird Party Advisory
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