CVE-2018-20191
published 2018-12-20CVE-2018-20191: hw/rdma/vmw/pvrdma_main.c in QEMU does not implement a read operation (such as uar_read by analogy to uar_write), which allows attackers to cause a denial of…
PriorityP433high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
3.72%
88.6th percentile
hw/rdma/vmw/pvrdma_main.c in QEMU does not implement a read operation (such as uar_read by analogy to uar_write), which allows attackers to cause a denial of service (NULL pointer dereference).
Affected
15 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | qemu | < qemu 1:4.1-1 (bookworm) | qemu 1:4.1-1 (bookworm) |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| qemu | qemu | <= 3.1.0 | — |
| qemu | qemu | >= 0 < 1:4.1-1 | 1:4.1-1 |
| qemu | qemu | >= 0 < 1:4.1-1 | 1:4.1-1 |
| qemu | qemu | >= 0 < 1:4.1-1 | 1:4.1-1 |
| qemu | qemu | >= 0 < 1:4.1-1 | 1:4.1-1 |
| qemu | qemu | >= 0 < 2.0.0+dfsg-2ubuntu1.45 | 2.0.0+dfsg-2ubuntu1.45 |
| qemu | qemu | >= 0 < 1:2.5+dfsg-5ubuntu10.36 | 1:2.5+dfsg-5ubuntu10.36 |
| qemu | qemu | >= 0 < 1:2.11+dfsg-1ubuntu7.12 | 1:2.11+dfsg-1ubuntu7.12 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv7.8HIGH
vendor_ubuntu7.8HIGH
vendor_debian7.5LOW
vendor_redhat7.5HIGH
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GHSA
GHSA-h5wg-wcrq-7mp8: hw/rdma/vmw/pvrdma_main
ghsa_unreviewed·2022-05-13
CVE-2018-20191 [HIGH] CWE-476 GHSA-h5wg-wcrq-7mp8: hw/rdma/vmw/pvrdma_main
hw/rdma/vmw/pvrdma_main.c in QEMU does not implement a read operation (such as uar_read by analogy to uar_write), which allows attackers to cause a denial of service (NULL pointer dereference).
OSV
qemu vulnerabilities
osv·2019-03-27·CVSS 7.8
CVE-2018-16867 [HIGH] qemu vulnerabilities
qemu vulnerabilities
Michael Hanselmann discovered that QEMU incorrectly handled the Media
Transfer Protocol (MTP). An attacker inside the guest could use this issue
to read or write arbitrary files and cause a denial of service, or possibly
execute arbitrary code. This issue only affected Ubuntu 18.10.
(CVE-2018-16867)
Michael Hanselmann discovered that QEMU incorrectly handled the Media
Transfer Protocol (MTP). An attacker inside the guest could use this issue
to read arbitrary files, contrary to expectations. This issue only affected
Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-16872)
Zhibin Hu discovered that QEMU incorrectly handled the Plan 9 File System
support. An attacker inside the guest could use this issue to cause QEMU to
crash, resulting in a denial of service. (CVE-2018-1
OSV
CVE-2018-20191: hw/rdma/vmw/pvrdma_main
osv·2018-12-20·CVSS 7.5
CVE-2018-20191 [HIGH] CVE-2018-20191: hw/rdma/vmw/pvrdma_main
hw/rdma/vmw/pvrdma_main.c in QEMU does not implement a read operation (such as uar_read by analogy to uar_write), which allows attackers to cause a denial of service (NULL pointer dereference).
Ubuntu
QEMU vulnerabilities
vendor_ubuntu·2019-03-27·CVSS 7.8
CVE-2018-16867 [HIGH] QEMU vulnerabilities
Title: QEMU vulnerabilities
Summary: Several security issues were fixed in QEMU.
Michael Hanselmann discovered that QEMU incorrectly handled the Media
Transfer Protocol (MTP). An attacker inside the guest could use this issue
to read or write arbitrary files and cause a denial of service, or possibly
execute arbitrary code. This issue only affected Ubuntu 18.10.
(CVE-2018-16867)
Michael Hanselmann discovered that QEMU incorrectly handled the Media
Transfer Protocol (MTP). An attacker inside the guest could use this issue
to read arbitrary files, contrary to expectations. This issue only affected
Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-16872)
Zhibin Hu discovered that QEMU incorrectly handled the Plan 9 File System
support. An attacker inside the guest could use this issue to cause
Red Hat
QEMU: pvrdma: uar_read leads to NULL dereference
vendor_redhat·2018-12-11·CVSS 7.5
CVE-2018-20191 [HIGH] CWE-476 QEMU: pvrdma: uar_read leads to NULL dereference
QEMU: pvrdma: uar_read leads to NULL dereference
hw/rdma/vmw/pvrdma_main.c in QEMU does not implement a read operation (such as uar_read by analogy to uar_write), which allows attackers to cause a denial of service (NULL pointer dereference).
Package: kvm (Red Hat Enterprise Linux 5) - Not affected
Package: xen (Red Hat Enterprise Linux 5) - Not affected
Package: qemu-kvm (Red Hat Enterprise Linux 6) - Not affected
Package: qemu-kvm (Red Hat Enterprise Linux 7) - Not affected
Package: qemu-kvm-ma (Red Hat Enterprise Linux 7) - Not affected
Package: qemu-kvm-rhev (Red Hat Enterprise Linux 7) - Not affected
Package: qemu-kvm-rhev (Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)) - Not affected
Package: qemu-kvm-rhev (Red Hat OpenStack Platform 10 (Newton)) - Not affected
Packa
Debian
CVE-2018-20191: qemu - hw/rdma/vmw/pvrdma_main.c in QEMU does not implement a read operation (such as u...
vendor_debian·2018·CVSS 7.5
CVE-2018-20191 [HIGH] CVE-2018-20191: qemu - hw/rdma/vmw/pvrdma_main.c in QEMU does not implement a read operation (such as u...
hw/rdma/vmw/pvrdma_main.c in QEMU does not implement a read operation (such as uar_read by analogy to uar_write), which allows attackers to cause a denial of service (NULL pointer dereference).
Scope: local
bookworm: resolved (fixed in 1:4.1-1)
bullseye: resolved (fixed in 1:4.1-1)
forky: resolved (fixed in 1:4.1-1)
sid: resolved (fixed in 1:4.1-1)
trixie: resolved (fixed in 1:4.1-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2018-20191 QEMU: pvrdma: uar_read leads to NULL dereference
bugzilla·2018-12-18·CVSS 7.5
CVE-2018-20191 [HIGH] CVE-2018-20191 QEMU: pvrdma: uar_read leads to NULL dereference
CVE-2018-20191 QEMU: pvrdma: uar_read leads to NULL dereference
A Null pointer dereference issue was found in QEMU's implementation of
VMWare's paravirtual RDMA device. It could occur while performing
UAR read operation, as it did not define a routine to handle it.
A guest user/process could use this flaw to crash QEMU process on host,
resulting in DoS.
Upstream patch:
-> https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg03066.html
Reference:
-> https://www.openwall.com/lists/oss-security/2018/12/18/1
Discussion:
Acknowledgments:
Name: Li Qiang
---
Created qemu tracking bugs for this issue:
Affects: fedora-all [bug 1660315]
Bugzilla
CVE-2018-20191 qemu: pvrdma: uar_read leads to NULL dereference [fedora-all]
bugzilla·2018-12-18·CVSS 7.5
CVE-2018-20191 [HIGH] CVE-2018-20191 qemu: pvrdma: uar_read leads to NULL dereference [fedora-all]
CVE-2018-20191 qemu: pvrdma: uar_read leads to NULL dereference [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions
http://www.openwall.com/lists/oss-security/2018/12/18/1http://www.securityfocus.com/bid/106276https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CGCFIFSIWUREEQQOZDZFBYKWZHXCWBZN/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KJMTVGDLA654HNCDGLCUEIP36SNJEKK7/https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg03066.htmlhttps://usn.ubuntu.com/3923-1/http://www.openwall.com/lists/oss-security/2018/12/18/1http://www.securityfocus.com/bid/106276https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CGCFIFSIWUREEQQOZDZFBYKWZHXCWBZN/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KJMTVGDLA654HNCDGLCUEIP36SNJEKK7/https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg03066.htmlhttps://usn.ubuntu.com/3923-1/
2018-12-20
Published