CVE-2021-3611: Buffer Overflow
First published: Fri Jun 18 2021(Updated: )
A stack overflow vulnerability was found in the Intel HD Audio device (intel-hda) of QEMU. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability. This flaw affects QEMU versions prior to 7.0.0.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| QEMU qemu | <7.0.0 | |
| Redhat Enterprise Linux | =8.0 | |
| ubuntu/qemu | <1:7.0+dfsg-7ubuntu1 | 1:7.0+dfsg-7ubuntu1 |
| ubuntu/qemu | <1:7.0+dfsg-7ubuntu1 | 1:7.0+dfsg-7ubuntu1 |
| ubuntu/qemu | <1:7.0+dfsg-7ubuntu1 | 1:7.0+dfsg-7ubuntu1 |
| ubuntu/qemu | <1:6.2+dfsg-2ubuntu6.16 | 1:6.2+dfsg-2ubuntu6.16 |
| debian/qemu | <=1:5.2+dfsg-11+deb11u3<=1:5.2+dfsg-11+deb11u2 | 1:3.1+dfsg-8+deb10u8 1:3.1+dfsg-8+deb10u12 1:7.2+dfsg-7+deb12u5 1:8.2.1+ds-2 1:8.2.2+ds-2 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=1973784
- https://gitlab.com/qemu-project/qemu/-/issues/542
- https://security.gentoo.org/glsa/202208-27
- https://security.netapp.com/advisory/ntap-20220624-0001/
- https://bugs.launchpad.net/qemu/+bug/1907497
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1975833
- https://patchew.org/QEMU/20200903110831.353476-1-philmd@redhat.com
- https://mail.gnu.org/archive/html/qemu-devel/2020-09/msg00906.html
- https://gitlab.com/qemu-project/qemu/-/commit/79fa99831debc9782087e834382c577215f2f511
- https://access.redhat.com/errata/RHSA-2022:7967
- https://access.redhat.com/security/cve/cve-2021-3611
- https://launchpad.net/bugs/cve/CVE-2021-3611
- https://git.qemu.org/?p=qemu.git;a=commit;h=a9d8ba2be58e067bdfbff830eb9ff438d8db7f10
- https://lore.kernel.org/qemu-devel/20211218160912.1591633-1-philmd@redhat.com/
- https://security-tracker.debian.org/tracker/CVE-2021-3611
- https://access.redhat.com/security/cve/CVE-2021-3611
- https://ubuntu.com/security/notices/USN-6567-1
- https://www.cve.org/CVERecord?id=CVE-2021-3611
- https://nvd.nist.gov/vuln/detail/CVE-2021-3611
- https://gitlab.com/qemu-project/qemu/-/commit/41d5e8da3d5e0a143a9fb397c9f34707ec544997
- https://gitlab.com/qemu-project/qemu/-/commit/7ccb391ccd594b3f33de8deb293ff8d47bb4e219
- https://gitlab.com/qemu-project/qemu/-/commit/7a36e42d9114474278ce30ba36945cc62292eb60
- https://gitlab.com/qemu-project/qemu/-/commit/4afd0f2f220ec3dc8518b8de0d66cbf8d2fd1be7
- https://gitlab.com/qemu-project/qemu/-/commit/23faf5694ff8054b847e9733297727be4a641132
- https://gitlab.com/qemu-project/qemu/-/commit/ba06fe8add5b788956a7317246c6280dfc157040
- https://gitlab.com/qemu-project/qemu/-/commit/a1d4b0a3051b3079c8db607f519bc0fcb30e17ec
- https://gitlab.com/qemu-project/qemu/-/commit/c0ee1527358474c75067993d1bb233ad3a4ee081
- https://gitlab.com/qemu-project/qemu/-/commit/5e468a36dcdd8fd5eb04282842b72967a29875e4
- https://gitlab.com/qemu-project/qemu/-/commit/e2d784b67dc724a9b0854b49255ba0ee8ca46543
- https://gitlab.com/qemu-project/qemu/-/commit/959384e74e1b508acc3af6e806b3d7b87335fc2a
- https://gitlab.com/qemu-project/qemu/-/commit/392e48af3468d7f8e49db33fdc9e28b5f99276ce
- https://gitlab.com/qemu-project/qemu/-/commit/1e5a3f8b2a976054da96cbbb9de6cbac7c2efb79
- https://gitlab.com/qemu-project/qemu/-/commit/292e13142d277c15bdd68331abc607e46628b7e1
- https://gitlab.com/qemu-project/qemu/-/commit/2280c27afc65bb2af95dd44a88e3b7117bfe240a
- https://gitlab.com/qemu-project/qemu/-/commit/34cdea1db600540a5261dc474e986f28b637c8e6
- https://gitlab.com/qemu-project/qemu/-/commit/24aed6bcb6b6d266149591f955c2460c28759eb4
- https://gitlab.com/qemu-project/qemu/-/commit/cd1db8df7431edd2210ed0123e2e09b9b6d1e621
- https://gitlab.com/qemu-project/qemu/-/commit/a423a1b523296f8798a5851aaaba64dd166c0a74
- https://gitlab.com/qemu-project/qemu/-/commit/398f9a84ac7132e38caf7b066273734b3bf619ff
- https://gitlab.com/qemu-project/qemu/-/commit/6bebb270731758fae3114b7d24c2b12b7c325cc5
- https://gitlab.com/qemu-project/qemu/-/commit/4a63054bce23982b99f4d3c65528e47e614086b2
- https://gitlab.com/qemu-project/qemu/-/commit/be5a8cf347d0c47ee3e933dde075526fd8bd5c40
- https://ubuntu.com/security/CVE-2021-3611
Frequently Asked Questions
What is CVE-2021-3611?
CVE-2021-3611 is a stack overflow vulnerability found in the Intel HD Audio device (intel-hda) of QEMU.
How does CVE-2021-3611 affect QEMU?
The vulnerability allows a malicious guest to crash the QEMU process on the host, resulting in a denial of service.
What is the severity of CVE-2021-3611?
CVE-2021-3611 has a severity rating of 6.5, which is considered medium.
Which software versions are affected by CVE-2021-3611?
QEMU versions up to exclusive 7.0.0 and Redhat Enterprise Linux version 8.0 are affected.
How can CVE-2021-3611 be fixed?
Update QEMU to a version higher than 7.0.0 or apply the necessary patches provided by the vendor.
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