Executive Summary



This vulnerability is currently undergoing analysis and not all information is available. Please check back soon to view the completed vulnerability summary
Informations
Name CVE-2022-49948 First vendor Publication 2025-06-18
Vendor Cve Last vendor Modification 2025-06-18

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
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Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

In the Linux kernel, the following vulnerability has been resolved:

vt: Clear selection before changing the font

When changing the console font with ioctl(KDFONTOP) the new font size can be bigger than the previous font. A previous selection may thus now be outside of the new screen size and thus trigger out-of-bounds accesses to graphics memory if the selection is removed in vc_do_resize().

Prevent such out-of-memory accesses by dropping the selection before the various con_font_set() console handlers are called.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-49948

Sources (Detail)

https://git.kernel.org/stable/c/1cf1930369c9dc428d827b60260c53271bff3285
https://git.kernel.org/stable/c/2535431ae967ad17585513649625fea7db28d4db
https://git.kernel.org/stable/c/566f9c9f89337792070b5a6062dff448b3e7977f
https://git.kernel.org/stable/c/989201bb8c00b222235aff04e6200230d29dc7bb
https://git.kernel.org/stable/c/c555cf04684fde39b5b0dd9fd80730030ee10c4a
https://git.kernel.org/stable/c/c904fe03c4bd1f356a58797d39e2a5d0ca15cefc
https://git.kernel.org/stable/c/e9ba4611ddf676194385506222cce7b0844e708e
https://git.kernel.org/stable/c/f74b4a41c5d7c9522469917e3072e55d435efd9e
Source Url

Alert History

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0
Date Informations
2025-06-18 17:20:35
  • First insertion