CVE-2021-3409: Buffer Overflow
First published: Fri Feb 12 2021(Updated: )
Last updated 24 July 2024
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| QEMU qemu | <=5.2.0 | |
| Redhat Enterprise Linux | =7.0 | |
| Fedoraproject Fedora | =33 | |
| Debian Debian Linux | =9.0 | |
| debian/qemu | 1:5.2+dfsg-11+deb11u3 1:5.2+dfsg-11+deb11u2 1:7.2+dfsg-7+deb12u7 1:9.2.0+ds-2 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=1928146
- https://lists.debian.org/debian-lts-announce/2021/04/msg00009.html
- https://security.gentoo.org/glsa/202208-27
- https://security.netapp.com/advisory/ntap-20210507-0001/
- https://www.openwall.com/lists/oss-security/2021/03/09/1
- https://launchpad.net/bugs/cve/CVE-2021-3409
- https://access.redhat.com/security/cve/CVE-2020-17380
- https://access.redhat.com/security/cve/CVE-2020-25085
- https://git.qemu.org/?p=qemu.git;a=commit;h=dfba99f17feb6d4a129da19d38df1bcd8579d1c3
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1928171
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1928170
- https://access.redhat.com/security/cve/cve-2021-3409
- https://lists.nongnu.org/archive/html/qemu-devel/2021-03/msg00949.html
- https://git.qemu.org/?p=qemu.git;a=commit;h=b263d8f928001b5cfa2a993ea43b7a5b3a1811e8
- https://git.qemu.org/?p=qemu.git;a=commit;h=8be45cc947832b3c02144c9d52921f499f2d77fe
- https://git.qemu.org/?p=qemu.git;a=commit;h=bc6f28995ff88f5d82c38afcfd65406f0ae375aa
- https://git.qemu.org/?p=qemu.git;a=commit;h=5cd7aa3451b76bb19c0f6adc2b931f091e5d7fcd
- https://git.qemu.org/?p=qemu.git;a=commit;h=cffb446e8fd19a14e1634c7a3a8b07be3f01d5c9
- https://security-tracker.debian.org/tracker/CVE-2021-3409
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3409
- https://nvd.nist.gov/vuln/detail/CVE-2021-3409
- https://ubuntu.com/security/CVE-2021-3409
Frequently Asked Questions
What is CVE-2021-3409?
CVE-2021-3409 is a vulnerability in QEMU that allows a malicious guest to crash the QEMU process on the host.
Which software is affected by CVE-2021-3409?
QEMU versions up to and including 5.2.0, Red Hat Enterprise Linux 7.0, Fedora 33, Debian Debian Linux 9.0, and various versions of Ubuntu are affected by CVE-2021-3409.
How severe is CVE-2021-3409?
CVE-2021-3409 has a severity rating of 5.7, which is classified as medium.
How can I fix CVE-2021-3409?
To fix CVE-2021-3409, it is recommended to update to the latest version of QEMU or apply the relevant patches provided by the software vendor.
Where can I find more information about CVE-2021-3409?
More information about CVE-2021-3409 can be found at the following references: [Link 1](https://access.redhat.com/security/cve/CVE-2020-17380), [Link 2](https://access.redhat.com/security/cve/CVE-2020-25085), [Link 3](https://git.qemu.org/?p=qemu.git;a=commit;h=dfba99f17feb6d4a129da19d38df1bcd8579d1c3).
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