CVE-2018-20125: Null Pointer Dereference
First published: Thu Dec 20 2018(Updated: )
hw/rdma/vmw/pvrdma_cmd.c in QEMU allows attackers to cause a denial of service (NULL pointer dereference or excessive memory allocation) in create_cq_ring or create_qp_rings.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/qemu | 1:5.2+dfsg-11+deb11u3 1:5.2+dfsg-11+deb11u2 1:7.2+dfsg-7+deb12u7 1:9.1.2+ds-1 1:9.2.0+ds-2 | |
| QEMU KVM | <=3.1.0 | |
| Ubuntu | =14.04 | |
| Ubuntu | =16.04 | |
| Ubuntu | =18.04 | |
| Ubuntu | =18.10 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2018/12/19/3
- http://www.securityfocus.com/bid/106298
- https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg02823.html
- https://usn.ubuntu.com/3923-1/
- https://launchpad.net/bugs/cve/CVE-2018-20125
- https://git.qemu.org/?p=qemu.git;a=commit;h=2c858ce5da8ae6689c75182b73bc455a291cad41
- https://security-tracker.debian.org/tracker/CVE-2018-20125
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20125
- https://nvd.nist.gov/vuln/detail/CVE-2018-20125
- https://ubuntu.com/security/CVE-2018-20125
Frequently Asked Questions
What is the severity of CVE-2018-20125?
CVE-2018-20125 has a severity rating that allows for denial of service due to a NULL pointer dereference or excessive memory allocation.
How do I fix CVE-2018-20125?
To fix CVE-2018-20125, upgrade to the latest patched version of QEMU.
What are the affected versions for CVE-2018-20125?
CVE-2018-20125 affects QEMU versions up to and including 3.1.0.
Can CVE-2018-20125 be exploited remotely?
Yes, CVE-2018-20125 could potentially be exploited remotely leading to a denial of service.
What software is impacted by CVE-2018-20125?
CVE-2018-20125 impacts QEMU, affecting multiple distributions including Debian and Ubuntu.
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