CVE-2020-27617
published 2020-11-06CVE-2020-27617: eth_get_gso_type in net/eth.c in QEMU 4.2.1 allows guest OS users to trigger an assertion failure. A guest can crash the QEMU process via packet data that…
PriorityP434medium6.5CVSS 3.1
AVNACLPRLUINSUCNINAH
EPSS
2.51%
83.1th percentile
eth_get_gso_type in net/eth.c in QEMU 4.2.1 allows guest OS users to trigger an assertion failure. A guest can crash the QEMU process via packet data that lacks a valid Layer 3 protocol.
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | qemu | < qemu 1:5.2+dfsg-1 (bookworm) | qemu 1:5.2+dfsg-1 (bookworm) |
| qemu | qemu | — | — |
| qemu | qemu | >= 0 < 1:5.2+dfsg-1 | 1:5.2+dfsg-1 |
| qemu | qemu | >= 0 < 1:5.2+dfsg-1 | 1:5.2+dfsg-1 |
| qemu | qemu | >= 0 < 1:5.2+dfsg-1 | 1:5.2+dfsg-1 |
| qemu | qemu | >= 0 < 1:5.2+dfsg-1 | 1:5.2+dfsg-1 |
| qemu | qemu | >= 0 < 1:2.5+dfsg-5ubuntu10.48 | 1:2.5+dfsg-5ubuntu10.48 |
| qemu | qemu | >= 0 < 1:2.11+dfsg-1ubuntu7.34 | 1:2.11+dfsg-1ubuntu7.34 |
| qemu | qemu | >= 0 < 1:4.2-3ubuntu6.10 | 1:4.2-3ubuntu6.10 |
| ubuntu | qemu | — | — |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvdv2.04.0MEDIUMAV:N/AC:L/Au:S/C:N/I:N/A:P
osv6.5MEDIUM
vendor_debian6.5MEDIUM
vendor_redhat6.5MEDIUM
vendor_ubuntu6.3MEDIUM
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Ubuntu
QEMU regression
vendor_ubuntu·2026-06-28·CVSS 3.8
CVE-2020-11947 [LOW] QEMU regression
Title: QEMU regression
Summary: USN-8412-1 introduced a regression in QEMU
USN-8412-1 fixed vulnerabilities QEMU. On Ubuntu 20.04 LTS, the fix for
CVE-2024-4467 was incomplete and prevented the creation of boot volumes
from qcow2 images. This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
Felipe Franciosi, Raphael Norwitz, and Peter Turschmid discovered that the
iSCSI block driver in QEMU incorrectly handled certain responses from an
iSCSI server. A remote attacker could possibly use this issue to cause
QEMU to crash, resulting in a denial of service, or possibly execute
arbitrary code. This issue only affected Ubuntu 14.04 LTS. (CVE-2020-1711)
It was discovered that the iSCSI block driver in QEMU incorrectly handled
certain memory operations
Ubuntu
QEMU vulnerabilities
vendor_ubuntu·2026-06-09·CVSS 3.8
CVE-2021-3416 [LOW] QEMU vulnerabilities
Title: QEMU vulnerabilities
Summary: Several security issues were fixed in QEMU.
Felipe Franciosi, Raphael Norwitz, and Peter Turschmid discovered that the
iSCSI block driver in QEMU incorrectly handled certain responses from an
iSCSI server. A remote attacker could possibly use this issue to cause QEMU
to crash, resulting in a denial of service, or possibly execute arbitrary
code. This issue only affected Ubuntu 14.04 LTS. (CVE-2020-1711)
It was discovered that the iSCSI block driver in QEMU incorrectly handled
certain memory operations, leading to a heap-based buffer over-read. An
attacker could possibly use this issue to expose sensitive information from
the host. This issue only affected Ubuntu 14.04 LTS. (CVE-2020-11947)
Ziming Zhang discovered that the SM501 display driver in QEM
Ubuntu
QEMU vulnerabilities
vendor_ubuntu·2020-11-30·CVSS 6.3
CVE-2020-25624 [MEDIUM] QEMU vulnerabilities
Title: QEMU vulnerabilities
Summary: Several security issues were fixed in QEMU.
Alexander Bulekov discovered that QEMU incorrectly handled SDHCI device
emulation. An attacker inside the guest could use this issue to cause QEMU
to crash, resulting in a denial of service, or possibly execute arbitrary
code on the host. In the default installation, when QEMU is used with
libvirt, attackers would be isolated by the libvirt AppArmor profile.
(CVE-2020-17380)
Sergej Schumilo, Cornelius Aschermann, and Simon Wrner discovered that QEMU
incorrectly handled USB device emulation. An attacker inside the guest
could use this issue to cause QEMU to crash, resulting in a denial of
service. (CVE-2020-25084)
Sergej Schumilo, Cornelius Aschermann, and Simon Wrner discovered that QEMU
incorrectly handle
Red Hat
QEMU: net: an assert failure via eth_get_gso_type
vendor_redhat·2020-10-20·CVSS 6.5
CVE-2020-27617 [MEDIUM] CWE-617 QEMU: net: an assert failure via eth_get_gso_type
QEMU: net: an assert failure via eth_get_gso_type
eth_get_gso_type in net/eth.c in QEMU 4.2.1 allows guest OS users to trigger an assertion failure. A guest can crash the QEMU process via packet data that lacks a valid Layer 3 protocol.
An assert(3) failure flaw was found in the networking helper functions of QEMU. This vulnerability can occur in the eth_get_gso_type() routine if a packet does not have a valid networking L3 protocol (ex. IPv4, IPv6) value. This flaw allows a guest user to crash the QEMU process on the host, resulting in a denial of service.
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) - Fix d
Debian
CVE-2020-27617: qemu - eth_get_gso_type in net/eth.c in QEMU 4.2.1 allows guest OS users to trigger an ...
vendor_debian·2020·CVSS 6.5
CVE-2020-27617 [MEDIUM] CVE-2020-27617: qemu - eth_get_gso_type in net/eth.c in QEMU 4.2.1 allows guest OS users to trigger an ...
eth_get_gso_type in net/eth.c in QEMU 4.2.1 allows guest OS users to trigger an assertion failure. A guest can crash the QEMU process via packet data that lacks a valid Layer 3 protocol.
Scope: local
bookworm: resolved (fixed in 1:5.2+dfsg-1)
bullseye: resolved (fixed in 1:5.2+dfsg-1)
forky: resolved (fixed in 1:5.2+dfsg-1)
sid: resolved (fixed in 1:5.2+dfsg-1)
trixie: resolved (fixed in 1:5.2+dfsg-1)
GHSA
GHSA-rxvx-vx9w-jw3j: eth_get_gso_type in net/eth
ghsa_unreviewed·2022-05-24
CVE-2020-27617 [MEDIUM] CWE-617 GHSA-rxvx-vx9w-jw3j: eth_get_gso_type in net/eth
eth_get_gso_type in net/eth.c in QEMU 4.2.1 allows guest OS users to trigger an assertion failure. A guest can crash the QEMU process via packet data that lacks a valid Layer 3 protocol.
OSV
qemu vulnerabilities
osv·2020-11-30·CVSS 6.3
CVE-2020-17380 [MEDIUM] qemu vulnerabilities
qemu vulnerabilities
Alexander Bulekov discovered that QEMU incorrectly handled SDHCI device
emulation. An attacker inside the guest could use this issue to cause QEMU
to crash, resulting in a denial of service, or possibly execute arbitrary
code on the host. In the default installation, when QEMU is used with
libvirt, attackers would be isolated by the libvirt AppArmor profile.
(CVE-2020-17380)
Sergej Schumilo, Cornelius Aschermann, and Simon Wrner discovered that QEMU
incorrectly handled USB device emulation. An attacker inside the guest
could use this issue to cause QEMU to crash, resulting in a denial of
service. (CVE-2020-25084)
Sergej Schumilo, Cornelius Aschermann, and Simon Wrner discovered that QEMU
incorrectly handled SDHCI device emulation. An attacker inside the guest
could
OSV
CVE-2020-27617: eth_get_gso_type in net/eth
osv·2020-11-06·CVSS 6.5
CVE-2020-27617 [MEDIUM] CVE-2020-27617: eth_get_gso_type in net/eth
eth_get_gso_type in net/eth.c in QEMU 4.2.1 allows guest OS users to trigger an assertion failure. A guest can crash the QEMU process via packet data that lacks a valid Layer 3 protocol.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2020-27617 QEMU: net: an assert failure via eth_get_gso_type
bugzilla·2020-10-27·CVSS 6.5
CVE-2020-27617 [MEDIUM] CVE-2020-27617 QEMU: net: an assert failure via eth_get_gso_type
CVE-2020-27617 QEMU: net: an assert failure via eth_get_gso_type
An assert(3) failure issue was found in the networking helper functions of QEMU. It could occur in the eth_get_gso_type() routine, if a packet does not have a valid networking L3 protocol (ex. IPv4, IPv6) value. A guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario.
Upstream patch:
-> https://lists.nongnu.org/archive/html/qemu-devel/2020-10/msg06023.html
Discussion:
Acknowledgments:
Name: Gaoning Pan (Zhejiang University)
---
Created qemu tracking bugs for this issue:
Affects: fedora-all [bug 1891669]
---
External References:
https://bugs.launchpad.net/qemu/+bug/1878067
https://www.openwall.com/lists/oss-security/2020/11/02/1
---
This issue has been addressed in the follow
Bugzilla
CVE-2020-27617 qemu: net: an assert failure via eth_get_gso_type [fedora-all]
bugzilla·2020-10-27·CVSS 6.5
CVE-2020-27617 [MEDIUM] CVE-2020-27617 qemu: net: an assert failure via eth_get_gso_type [fedora-all]
CVE-2020-27617 qemu: net: an assert failure via eth_get_gso_type [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/2020/11/02/1https://lists.debian.org/debian-lts-announce/2020/11/msg00047.htmlhttps://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlhttps://lists.nongnu.org/archive/html/qemu-devel/2020-10/msg05731.htmlhttps://security.netapp.com/advisory/ntap-20201202-0002/http://www.openwall.com/lists/oss-security/2020/11/02/1https://lists.debian.org/debian-lts-announce/2020/11/msg00047.htmlhttps://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlhttps://lists.nongnu.org/archive/html/qemu-devel/2020-10/msg05731.htmlhttps://security.netapp.com/advisory/ntap-20201202-0002/
2020-11-06
Published