vt: Clear selection before changing the font (Linux Linux)

CVE-2022-49948
HIGH 7.8

En bref

Source
NVD
EPSS
EPSS 0.27 % · centile 20 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

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.

Faiblesses (CWE)

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
CVSS 3.1HIGH 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 009e39ae44f4191188aeb6dfbf661b771dbbe515 < c555cf04684fde39b5b0dd9fd80730030ee10c4a ; affected 009e39ae44f4191188aeb6dfbf661b771dbbe515 < e9ba4611ddf676194385506222cce7b0844e708e ; affected 009e39ae44f4191188aeb6dfbf661b771dbbe515 < f74b4a41c5d7c9522469917e3072e55d435efd9e ; affected 009e39ae44f4191188aeb6dfbf661b771dbbe515 < 1cf1930369c9dc428d827b60260c53271bff3285 ; affected 009e39ae44f4191188aeb6dfbf661b771dbbe515 < 989201bb8c00b222235aff04e6200230d29dc7bb ; affected 009e39ae44f4191188aeb6dfbf661b771dbbe515 < 2535431ae967ad17585513649625fea7db28d4db
Linux · Linuxaffected 4.9 ; unaffected 0 < 4.9 ; unaffected 4.9.328 ≤ 4.9.* ; unaffected 4.14.293 ≤ 4.14.* ; unaffected 4.19.258 ≤ 4.19.* ; unaffected 5.4.213 ≤ 5.4.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD