CVE-2020-13253
First published: Thu May 21 2020(Updated: )
An out-of-bounds read access issue was found in the SD Memory Card emulator of the QEMU. It occurs while performing block write commands via sdhci_write(), if a guest user has sent 'address' which is OOB of 's->wp_groups'. A guest user/process may use this flaw to crash the QEMU process resulting in DoS. Upstream patch: --------------- -> <a href="https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg05835.html">https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg05835.html</a>
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/qemu | 1:5.2+dfsg-11+deb11u3 1:5.2+dfsg-11+deb11u2 1:7.2+dfsg-7+deb12u12 1:9.2.0+ds-2 1:9.2.0+ds-5 | |
| QEMU KVM | <=5.0.1 | |
| Ubuntu Linux | =16.04 | |
| Ubuntu Linux | =18.04 | |
| Ubuntu Linux | =20.04 | |
| Debian Debian Linux | =9.0 | |
| Debian Debian Linux | =10.0 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2020/05/27/2
- https://bugzilla.redhat.com/show_bug.cgi?id=1838546
- https://lists.debian.org/debian-lts-announce/2020/09/msg00013.html
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
- https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg05835.html
- https://security.gentoo.org/glsa/202011-09
- https://usn.ubuntu.com/4467-1/
- https://launchpad.net/bugs/cve/CVE-2020-13253
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1838547
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1838548
- https://bugs.launchpad.net/qemu/+bug/1880822
- https://www.openwall.com/lists/oss-security/2020/05/27/2
- https://git.qemu.org/?p=qemu.git;a=commitdiff;h=790762e5487114341cccc5bffcec4cb3c022c3cd
- https://security-tracker.debian.org/tracker/CVE-2020-13253
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13253
- https://nvd.nist.gov/vuln/detail/CVE-2020-13253
- https://ubuntu.com/security/CVE-2020-13253
Frequently Asked Questions
What is CVE-2020-13253?
CVE-2020-13253 is a vulnerability in QEMU 4.2.0 that allows an out-of-bounds read during sdhci_write() operations.
What is the severity of CVE-2020-13253?
The severity of CVE-2020-13253 is medium, with a severity value of 5.5.
How does CVE-2020-13253 affect QEMU?
CVE-2020-13253 affects QEMU versions up to and including 4.2.0.
How can the QEMU process be crashed by an attacker?
An attacker can crash the QEMU process by exploiting the CVE-2020-13253 vulnerability.
How can I fix CVE-2020-13253?
To fix CVE-2020-13253, you should update QEMU to version 5.0.1 or later.
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