vulnwire
6.6med

CVE-2020-14331

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…

Published 6 y ago · modified 4 mo ago · JSON

CVSS
6.6
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
0.6%
percentile 47%
Public exploits
0
none known

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.

Exploit prediction (EPSS)

0.56% probability of exploitation in the next 30 days, higher than 47% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.16.6CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD2.07.2AV:L/AC:L/Au:N/C:C/I:C/A:C

Affected products

  • n/a Linux Kernel

Classification

Weakness
Technology feeds
Linux kernel (RSS, critical only)

References

  • openwall.com /lists/oss-security/2020/07/28/2 · x_refsource_MISC, x_transferred
  • lists.openwall.net /linux-kernel/2020/07/29/234 · x_refsource_MISC, x_transferred
  • bugzilla.redhat.com /show_bug.cgi?id=1858679 · x_refsource_MISC, x_transferred
  • lists.debian.org /debian-lts-announce/2020/09/msg00025.html · mailing-list, x_refsource_MLIST, x_transferred
  • lists.debian.org /debian-lts-announce/2020/10/msg00032.html · mailing-list, x_refsource_MLIST, x_transferred
  • lists.debian.org /debian-lts-announce/2020/10/msg00034.html · mailing-list, x_refsource_MLIST, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.