ALSA: pcm: oss: Fix negative period/buffer sizes (Linux Linux)

CVE-2021-47511
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.24 % · centile 15 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: oss: Fix negative period/buffer sizes The period size calculation in OSS layer may receive a negative value as an error, but the code there assumes only the positive values and handle them with size_t. Due to that, a too big value may be passed to the lower layers. This patch changes the code to handle with ssize_t and adds the proper error checks appropriately.

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCISA-ADP
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < be8869d388593e57223ad39297c8e54be632f2f2 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 502e1146873d870f87da3b8f93d6bf2de5f38d0c ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 8af815ab052eaf74addbbfb556d63ce2137c0e1b ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < f96c0959c1ee92adc911c10d6ec209af50105049 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < f12c8a7515f641885677960af450082569a87243 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 02b2b691b77cd7b951fa7b6c9d44d4e472cdc823
Linux · Linuxaffected 2.6.12 ; unaffected 0 < 2.6.12 ; unaffected 4.4.295 ≤ 4.4.* ; unaffected 4.9.293 ≤ 4.9.* ; unaffected 4.14.258 ≤ 4.14.* ; unaffected 4.19.221 ≤ 4.19.*

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