wifi: mwifiex: Fix memcpy() field-spanning write warning in mwifiex_config_scan() (Linux Linux)

CVE-2024-56539
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.30 % · centile 22 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mwifiex: Fix memcpy() field-spanning write warning in mwifiex_config_scan() Replace one-element array with a flexible-array member in `struct mwifiex_ie_types_wildcard_ssid_params` to fix the following warning on a MT8173 Chromebook (mt8173-elm-hana): [ 356.775250] ------------[ cut here ]------------ [ 356.784543] memcpy: detected field-spanning write (size 6) of single field "wildcard_ssid_tlv->ssid" at drivers/net/wireless/marvell/mwifiex/scan.c:904 (size 1) [ 356.813403] WARNING: CPU: 3 PID: 742 at drivers/net/wireless/marvell/mwifiex/scan.c:904 mwifiex_scan_networks+0x4fc/0xf28 [mwifiex] The "(size 6)" above is exactly the length of the SSID of the network this device was connected to. The source of the warning looks like: ssid_len = user_scan_in->ssid_list[i].ssid_len; [...] memcpy(wildcard_ssid_tlv->ssid, user_scan_in->ssid_list[i].ssid, ssid_len); There is a #define WILDCARD_SSID_TLV_MAX_SIZE that uses sizeof() on this struct, but it already didn't account for the size of the one-element array, so it doesn't need to be changed.

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:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e < a09760c513ae0f98c7082a1deace7fb6284ee866 ; affected 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e < 1de0ca1d7320a645ba2ee5954f64be08935b002a ; affected 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e < 5fa329c44e1e635da2541eab28b6cdb8464fc8d1 ; affected 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e < 581261b2d6fdb4237b24fa13f5a5f87bf2861f2c ; affected 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e < b466746cfb6be43f9a1457bbee52ade397fb23ea ; affected 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e < c4698ef8c42e02782604bf4f8a489dbf6b0c1365
Linux · Linuxaffected 3.0 ; unaffected 0 < 3.0 ; unaffected 4.19.325 ≤ 4.19.* ; unaffected 5.4.287 ≤ 5.4.* ; unaffected 5.10.231 ≤ 5.10.* ; unaffected 5.15.174 ≤ 5.15.*

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