sd_wp_addr in hw/sd/sd.c in QEMU 4.2.0 uses an unvalidated address, which leads to an out-of-bounds read during sdhci_write() operations. A guest OS user can crash the QEMU process.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13253
Reference (s):
- http://www.openwall.com/lists/oss-security/2020/05/27/2
- https://bugzilla.redhat.com/show_bug.cgi?id=1838546
- GENTOO:GLSA-202011-09
- URL: https://security.gentoo.org/glsa/202011-09
- https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg05835.html