CVE-2021-33656Medium· 6.8▾ SunlitWhen setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.
▾ Sunlit zone — Low / medium · no exploitation signal
impact 37.4 · likelihood 0.1 · exploitation 0
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Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.6%
When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.
openeuler = 20.03linux_kernel < 5.10.127debian_linux = 10.0Upgrade past the affected range:
linux_kernel 5.10.127Connected by shared product, vendor, weakness, or advisory.
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