CVE-2020-11947: Buffer Overflow
First published: Mon Apr 20 2020(Updated: )
A heap buffer overflow flaw was found in the iSCSI support of QEMU. This flaw could lead to an out-of-bounds read access and possible information disclosure from the QEMU process memory to a malicious guest. The highest threat from this vulnerability is to data confidentiality.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| QEMU qemu | =4.1.0 | |
| redhat/qemu | <5.0.0 | 5.0.0 |
| 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://www.cve.org/CVERecord?id=CVE-2020-11947 https://nvd.nist.gov/vuln/detail/CVE-2020-11947 https://www.openwall.com/lists/oss-security/2021/01/13/4
- https://bugzilla.redhat.com/show_bug.cgi?id=1912765
- https://access.redhat.com/errata/RHSA-2021:0648
- https://access.redhat.com/errata/RHSA-2021:1762
- https://access.redhat.com/security/cve/cve-2020-11947
- http://www.openwall.com/lists/oss-security/2021/01/13/4
- https://git.qemu.org/?p=qemu.git;a=commit;h=ff0507c239a246fd7215b31c5658fc6a3ee1e4c5
- https://security.netapp.com/advisory/ntap-20210212-0001/
- https://launchpad.net/bugs/cve/CVE-2020-11947
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1912775
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1912779
- https://access.redhat.com/support/policy/updates/errata/
- https://www.openwall.com/lists/oss-security/2021/01/13/4
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1912765#c5
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1912765#c7
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1912765#c8
- https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=ff0507c239a246fd7215b31c5658fc6a3ee1e4c5
- https://security-tracker.debian.org/tracker/CVE-2020-11947
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11947
- https://nvd.nist.gov/vuln/detail/CVE-2020-11947
- https://ubuntu.com/security/CVE-2020-11947
Frequently Asked Questions
What is the severity of CVE-2020-11947?
The severity of CVE-2020-11947 is low with a severity value of 3.8.
What is the affected software for CVE-2020-11947?
The affected software for CVE-2020-11947 is QEMU version up to exclusive 5.0.0.
What is the vulnerability reference for CVE-2020-11947?
The vulnerability reference for CVE-2020-11947 can be found at the following links: - https://www.cve.org/CVERecord?id=CVE-2020-11947 - https://nvd.nist.gov/vuln/detail/CVE-2020-11947 - https://www.openwall.com/lists/oss-security/2021/01/13/4 - https://bugzilla.redhat.com/show_bug.cgi?id=1912765 - https://access.redhat.com/errata/RHSA-2021:0648
What is the Common Weakness Enumeration (CWE) for CVE-2020-11947?
The Common Weakness Enumeration (CWE) for CVE-2020-11947 includes CWE-119, CWE-131, and CWE-122.
How can I fix CVE-2020-11947?
To fix CVE-2020-11947, update your QEMU software to version 5.0.0 or higher.
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