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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 to (for example) a…
Medium5.5EPSS 0.53%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.53% · top 55% of all CVEs (5 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
n/a
- affected n/a
References (9)
- [debian-lts-announce] 20190129 [SECURITY] [DLA 1646-1] qemu security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [qemu-devel] 20181107 [PATCH] 9p: write lock path in v9fs_co_open2() (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-3826-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- [oss-security] 20181120 CVE-2018-19364 Qemu: 9pfs: Use-after-free due to race condition while updating fid path (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [qemu-devel] 20181115 [PATCH] 9p: take write lock on fid path updates (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- FEDORA-2019-88a98ce795 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- openSUSE-SU-2019:1074 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- DSA-4454 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 20190531 [SECURITY] [DSA 4454-1] qemu security update (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2018-19364)Record last updated .