CVE-2018-19364: Use After Free
First published: Thu Dec 13 2018(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| QEMU qemu | <=3.0.0 | |
| QEMU qemu | =3.1.0-rc0 | |
| QEMU qemu | =3.1.0-rc1 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =18.10 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| Fedoraproject Fedora | =29 | |
| openSUSE Leap | =42.3 | |
| debian/qemu | 1:5.2+dfsg-11+deb11u3 1:5.2+dfsg-11+deb11u2 1:7.2+dfsg-7+deb12u7 1:9.0.2+ds-2 1:9.1.0+ds-3 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00042.html
- http://www.openwall.com/lists/oss-security/2018/11/20/1
- https://lists.debian.org/debian-lts-announce/2019/01/msg00023.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CGCFIFSIWUREEQQOZDZFBYKWZHXCWBZN/
- https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg01139.html
- https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg02795.html
- https://seclists.org/bugtraq/2019/May/76
- https://usn.ubuntu.com/3826-1/
- https://www.debian.org/security/2019/dsa-4454
- https://launchpad.net/bugs/cve/CVE-2018-19364
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CGCFIFSIWUREEQQOZDZFBYKWZHXCWBZN/
- https://git.qemu.org/?p=qemu.git;a=commit;h=5b76ef50f62079a2389ba28cacaf6cce68b1a0ed
- https://git.qemu.org/?p=qemu.git;a=commit;h=5b3c77aa581ebb215125c84b0742119483571e55
- https://security-tracker.debian.org/tracker/CVE-2018-19364
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19364
- https://nvd.nist.gov/vuln/detail/CVE-2018-19364
- https://ubuntu.com/security/CVE-2018-19364
Frequently Asked Questions
What is the vulnerability ID for this issue?
The vulnerability ID for this issue is CVE-2018-19364.
What is the title of this vulnerability?
The title of this vulnerability is '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.'
What is the severity of CVE-2018-19364?
The severity of CVE-2018-19364 is medium, with a CVSS score of 5.5.
What software versions are affected by this vulnerability?
QEMU versions up to and including 3.0.0 are affected by this vulnerability.
How can I fix the vulnerability CVE-2018-19364?
To fix the vulnerability CVE-2018-19364, you should update to a version of QEMU that is not affected by the issue.
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