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 condition during file renaming.
02 Description
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.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.40% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 34.3% of scored records. A rank, not a probability.
- NVD base score
- 4.7 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2018-12-13 19:00Z7 YR AGO
- Last updated
- 2024-08-05 11:37Z2 YR AGO
- Reserved
- 2018-11-23
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class
- Data version
- 5.1
- Document digest
- 8571df6f51552a0513fbf8d25338b20d0c14abf16e61b5b25fd40fe872338a14
05 Affected products
06 References
- www.openwall.com[oss-security] 20181126 CVE-2018-19489 QEMU: 9pfs: crash due to race condition in renaming fileshttp://www.openwall.com/lists/oss-security/2018/11/26/1
- lists.debian.org[debian-lts-announce] 20190129 [SECURITY] [DLA 1646-1] qemu security updatehttps://lists.debian.org/debian-lts-announce/2019/01/msg00023.html
- lists.gnu.org[qemu-devel] 20181122 9p: fix QEMU crash when renaming fileshttps://lists.gnu.org/archive/html/qemu-devel/2018-11/msg04489.html
- security-tracker.debian.orghttps://security-tracker.debian.org/tracker/CVE-2018-19489
- exchange.xforce.ibmcloud.comqemu-cve201819489-dos(153326)https://exchange.xforce.ibmcloud.com/vulnerabilities/153326
- git.qemu.orghttps://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=1d20398694a3b67a388d955b7a945ba4aa90a8a8
- www.securityfocus.com106007http://www.securityfocus.com/bid/106007
- lists.fedoraproject.orgFEDORA-2019-88a98ce795https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CGCFIFSIWUREEQQOZDZFBYKWZHXCWBZN/
- usn.ubuntu.comUSN-3923-1https://usn.ubuntu.com/3923-1/
- lists.opensuse.orgopenSUSE-SU-2019:1074http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00042.html
- www.debian.orgDSA-4454https://www.debian.org/security/2019/dsa-4454
- seclists.org20190531 [SECURITY] [DSA 4454-1] qemu security updatehttps://seclists.org/bugtraq/2019/May/76
07 Fixed in
Debian 12
- qemu Fixed in 1:3.1+dfsg-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- qemu Fixed in 1:3.1+dfsg-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- qemu Fixed in 1:3.1+dfsg-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- qemu Fixed in 2.0.0+dfsg-2ubuntu1.45
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- qemu Fixed in 1:2.5+dfsg-5ubuntu10.36
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- qemu Fixed in 1:2.11+dfsg-1ubuntu7.12
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.