A flaw was found in the Linux kernel’s implementation of the invert video code on VGA consoles when a local attacker attempts to resize the console, calling an ioctl VT_RESIZE, which causes an out-of-bounds write to occur. This flaw allows a local user with access to the VGA console to crash the system, potentially escalating their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
References
Link | Resource |
---|---|
https://bugzilla.redhat.com/show_bug.cgi?id=1858679 | Issue Tracking Third Party Advisory |
https://lists.openwall.net/linux-kernel/2020/07/29/234 | Mailing List Patch Third Party Advisory |
https://www.openwall.com/lists/oss-security/2020/07/28/2 | Exploit Mailing List Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html | Mailing List Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html | Mailing List Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html | Mailing List Third Party Advisory |
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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Information
Published : 2020-09-15 12:15
Updated : 2023-02-12 15:40
NVD link : CVE-2020-14331
Mitre link : CVE-2020-14331
JSON object : View
CWE
CWE-787
Out-of-bounds Write
Products Affected
redhat
- enterprise_linux
linux
- linux_kernel