CVE-2021-3544
published 2021-06-02CVE-2021-3544: Several memory leaks were found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6.0. They exist in…
PriorityP424medium6.5CVSS 3.1
AVLACLPRLUINSCCNINAH
EPSS
0.44%
35.7th percentile
Several memory leaks were found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6.0. They exist in contrib/vhost-user-gpu/vhost-user-gpu.c and contrib/vhost-user-gpu/virgl.c due to improper release of memory (i.e., free) after effective lifetime.
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | qemu | < qemu 1:6.1+dfsg-1 (bookworm) | qemu 1:6.1+dfsg-1 (bookworm) |
| msrc | cm1_qemu-kvm_4.2.0-48_on_cbl_mariner_1.0 | — | — |
| qemu | qemu | <= 6.0.0 | — |
| qemu | qemu | — | — |
| qemu | qemu | >= 0 < 1:5.2+dfsg-11+deb11u1 | 1:5.2+dfsg-11+deb11u1 |
| qemu | qemu | >= 0 < 1:6.1+dfsg-1 | 1:6.1+dfsg-1 |
| qemu | qemu | >= 0 < 1:6.1+dfsg-1 | 1:6.1+dfsg-1 |
| qemu | qemu | >= 0 < 1:6.1+dfsg-1 | 1:6.1+dfsg-1 |
| qemu | qemu | >= 0 < 1:2.11+dfsg-1ubuntu7.37 | 1:2.11+dfsg-1ubuntu7.37 |
| qemu | qemu | >= 0 < 1:2.11+dfsg-1ubuntu7.39 | 1:2.11+dfsg-1ubuntu7.39 |
| qemu | qemu | >= 0 < 1:4.2-3ubuntu6.17 | 1:4.2-3ubuntu6.17 |
| qemu | qemu | >= 0 < 1:4.2-3ubuntu6.21 | 1:4.2-3ubuntu6.21 |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
nvdv2.02.1LOWAV:L/AC:L/Au:N/C:N/I:N/A:P
osv6.5MEDIUM
vendor_debian6.5MEDIUM
vendor_msrc6.5MEDIUM
vendor_redhat6.5MEDIUM
vendor_ubuntu6.5MEDIUM
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Ubuntu
QEMU vulnerabilities
vendor_ubuntu·2022-02-28·CVSS 6.5
CVE-2021-3544 [MEDIUM] QEMU vulnerabilities
Title: QEMU vulnerabilities
Summary: Several security issues were fixed in QEMU.
Gaoning Pan discovered that QEMU incorrectly handled the floppy disk
emulator. An attacker inside the guest could use this issue to cause QEMU
to crash, resulting in a denial of service. (CVE-2021-20196)
Gaoning Pan discovered that the QEMU vmxnet3 NIC emulator incorrectly
handled certain values. An attacker inside the guest could use this issue
to cause QEMU to crash, resulting in a denial of service. (CVE-2021-20203)
It was discovered that the QEMU vhost-user GPU device contained several
security issues. An attacker inside the guest could use these issues to
cause QEMU to crash, resulting in a denial of service, leak sensitive
information, or possibly execute arbitrary code. This issue only affected
Ubun
Ubuntu
QEMU vulnerabilities
vendor_ubuntu·2021-07-15·CVSS 2.3
CVE-2021-3594 [LOW] QEMU vulnerabilities
Title: QEMU vulnerabilities
Summary: Several security issues were fixed in QEMU.
Lei Sun discovered that QEMU incorrectly handled certain MMIO operations.
An attacker inside the guest could possibly use this issue to cause QEMU to
crash, resulting in a denial of service. (CVE-2020-15469)
Wenxiang Qian discovered that QEMU incorrectly handled certain ATAPI
commands. An attacker inside the guest could possibly use this issue to
cause QEMU to crash, resulting in a denial of service. This issue only
affected Ubuntu 21.04. (CVE-2020-29443)
Cheolwoo Myung discovered that QEMU incorrectly handled SCSI device
emulation. An attacker inside the guest could possibly use this issue to
cause QEMU to crash, resulting in a denial of service. (CVE-2020-35504,
CVE-2020-35505, CVE-2021-3392)
Alex Xu di
Microsoft
Several memory leaks were found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6.0. They exist in contrib/vhost-user-gpu/vhost-user-gpu.c and contrib/vhos
vendor_msrc·2021-06-08·CVSS 6.5
CVE-2021-3544 [MEDIUM] CWE-401 Several memory leaks were found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6.0. They exist in contrib/vhost-user-gpu/vhost-user-gpu.c and contrib/vhos
Several memory leaks were found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6.0. They exist in contrib/vhost-user-gpu/vhost-user-gpu.c and contrib/vhost-user-gpu/virgl.c due to improper release of memory (i.e., free) after effective lifetime.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog po
Red Hat
QEMU: vhost-user-gpu: multiple memory leaks
vendor_redhat·2021-05-04·CVSS 6.5
CVE-2021-3544 [MEDIUM] CWE-401 QEMU: vhost-user-gpu: multiple memory leaks
QEMU: vhost-user-gpu: multiple memory leaks
Several memory leaks were found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6.0. They exist in contrib/vhost-user-gpu/vhost-user-gpu.c and contrib/vhost-user-gpu/virgl.c due to improper release of memory (i.e., free) after effective lifetime.
Several memory leaks were found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU. They exist in contrib/vhost-user-gpu/vhost-user-gpu.c and contrib/vhost-user-gpu/virgl.c due to improper release of memory (i.e., free) after effective lifetime.
Statement: This issue does not affect the versions of `qemu-kvm` as shipped with Red Hat Enterprise Linux 6, 7 and 8, as Virgl was not enabled in these versions. Support for Virgl was enabled as technical
Debian
CVE-2021-3544: qemu - Several memory leaks were found in the virtio vhost-user GPU device (vhost-user-...
vendor_debian·2021·CVSS 6.5
CVE-2021-3544 [MEDIUM] CVE-2021-3544: qemu - Several memory leaks were found in the virtio vhost-user GPU device (vhost-user-...
Several memory leaks were found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6.0. They exist in contrib/vhost-user-gpu/vhost-user-gpu.c and contrib/vhost-user-gpu/virgl.c due to improper release of memory (i.e., free) after effective lifetime.
Scope: local
bookworm: resolved (fixed in 1:6.1+dfsg-1)
bullseye: resolved (fixed in 1:5.2+dfsg-11+deb11u1)
forky: resolved (fixed in 1:6.1+dfsg-1)
sid: resolved (fixed in 1:6.1+dfsg-1)
trixie: resolved (fixed in 1:6.1+dfsg-1)
GHSA
GHSA-vx69-74f2-j536: Several memory leaks were found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6
ghsa_unreviewed·2022-05-24
CVE-2021-3544 [MEDIUM] CWE-401 GHSA-vx69-74f2-j536: Several memory leaks were found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6
Several memory leaks were found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6.0. They exist in contrib/vhost-user-gpu/vhost-user-gpu.c and contrib/vhost-user-gpu/virgl.c due to improper release of memory (i.e., free) after effective lifetime.
OSV
qemu vulnerabilities
osv·2022-02-28·CVSS 6.5
CVE-2021-20196 [MEDIUM] qemu vulnerabilities
qemu vulnerabilities
Gaoning Pan discovered that QEMU incorrectly handled the floppy disk
emulator. An attacker inside the guest could use this issue to cause QEMU
to crash, resulting in a denial of service. (CVE-2021-20196)
Gaoning Pan discovered that the QEMU vmxnet3 NIC emulator incorrectly
handled certain values. An attacker inside the guest could use this issue
to cause QEMU to crash, resulting in a denial of service. (CVE-2021-20203)
It was discovered that the QEMU vhost-user GPU device contained several
security issues. An attacker inside the guest could use these issues to
cause QEMU to crash, resulting in a denial of service, leak sensitive
information, or possibly execute arbitrary code. This issue only affected
Ubuntu 21.10. (CVE-2021-3544, CVE-2021-3545, CVE-2021-3546)
It w
OSV
qemu vulnerabilities
osv·2021-07-15·CVSS 2.3
CVE-2020-15469 [LOW] qemu vulnerabilities
qemu vulnerabilities
Lei Sun discovered that QEMU incorrectly handled certain MMIO operations.
An attacker inside the guest could possibly use this issue to cause QEMU to
crash, resulting in a denial of service. (CVE-2020-15469)
Wenxiang Qian discovered that QEMU incorrectly handled certain ATAPI
commands. An attacker inside the guest could possibly use this issue to
cause QEMU to crash, resulting in a denial of service. This issue only
affected Ubuntu 21.04. (CVE-2020-29443)
Cheolwoo Myung discovered that QEMU incorrectly handled SCSI device
emulation. An attacker inside the guest could possibly use this issue to
cause QEMU to crash, resulting in a denial of service. (CVE-2020-35504,
CVE-2020-35505, CVE-2021-3392)
Alex Xu discovered that QEMU incorrectly handled the virtio-fs shared f
OSV
CVE-2021-3544: Several memory leaks were found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6
osv·2021-06-02·CVSS 6.5
CVE-2021-3544 [MEDIUM] CVE-2021-3544: Several memory leaks were found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6
Several memory leaks were found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6.0. They exist in contrib/vhost-user-gpu/vhost-user-gpu.c and contrib/vhost-user-gpu/virgl.c due to improper release of memory (i.e., free) after effective lifetime.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
http://www.openwall.com/lists/oss-security/2021/05/31/1https://bugzilla.redhat.com/show_bug.cgi?id=1958935https://security.gentoo.org/glsa/202208-27https://security.netapp.com/advisory/ntap-20210720-0008/https://www.debian.org/security/2021/dsa-4980http://www.openwall.com/lists/oss-security/2021/05/31/1https://bugzilla.redhat.com/show_bug.cgi?id=1958935https://security.gentoo.org/glsa/202208-27https://security.netapp.com/advisory/ntap-20210720-0008/https://www.debian.org/security/2021/dsa-4980
2021-06-02
Published