Home/CVE/hw/9pfs/cofile.c and hw/9pfs/9p.c in QEMU can modify an fid path while it is being accessed by a second thread, leading
CVE

CVE-2018-19364

hw/9pfs/cofile.c and hw/9pfs/9p.c in QEMU can modify an fid path while it is being accessed by a second thread, leading

hw/9pfs/cofile.c and hw/9pfs/9p.c in QEMU can modify an fid path while it is being accessed by a second thread, leading to (for example) a use-after-free outcome.

MEDIUM · CVSS 5.5 EPSS 0.00075
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-416Use After Free
▤

Affected Products & Versions

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

5.5
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:L/PR:L/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

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

References & Sources

9
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/2018/11/20/1Mailing ListPatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/01/msg00023.htmlMailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CGCFIFSIWUREEQQOZDZFBYKWZHXCWBZN/
https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg01139.htmlMailing ListPatchVendor Advisory
https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg02795.htmlMailing ListPatchVendor Advisory
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