nfc: pn533: Add poll mod list filling check (Linux Linux)

CVE-2024-46676
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.24 % · percentile 16 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: nfc: pn533: Add poll mod list filling check In case of im_protocols value is 1 and tm_protocols value is 0 this combination successfully passes the check 'if (!im_protocols && !tm_protocols)' in the nfc_start_poll(). But then after pn533_poll_create_mod_list() call in pn533_start_poll() poll mod list will remain empty and dev->poll_mod_count will remain 0 which lead to division by zero. Normally no im protocol has value 1 in the mask, so this combination is not expected by driver. But these protocol values actually come from userspace via Netlink interface (NFC_CMD_START_POLL operation). So a broken or malicious program may pass a message containing a "bad" combination of protocol parameter values so that dev->poll_mod_count is not incremented inside pn533_poll_create_mod_list(), thus leading to division by zero. Call trace looks like: nfc_genl_start_poll() nfc_start_poll() ->start_poll() pn533_start_poll() Add poll mod list filling check. Found by Linux Verification Center (linuxtesting.org) with SVACE.

Weaknesses (CWE)

References

Scores

VersionScoreVectorScored by
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)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected dfccd0f580445d176acea174175b3e6518cc91f7 < c5e05237444f32f6cfe5d907603a232c77a08b31 ; affected dfccd0f580445d176acea174175b3e6518cc91f7 < 8ddaea033de051ed61b39f6b69ad54a411172b33 ; affected dfccd0f580445d176acea174175b3e6518cc91f7 < 7535db0624a2dede374c42040808ad9a9101d723 ; affected dfccd0f580445d176acea174175b3e6518cc91f7 < 7ecd3dd4f8eecd3309432156ccfe24768e009ec4 ; affected dfccd0f580445d176acea174175b3e6518cc91f7 < 56ad559cf6d87f250a8d203b555dfc3716afa946 ; affected dfccd0f580445d176acea174175b3e6518cc91f7 < 64513d0e546a1f19e390f7e5eba3872bfcbdacf5
Linux · Linuxaffected 3.12 ; unaffected 0 < 3.12 ; unaffected 5.4.283 ≤ 5.4.* ; unaffected 5.10.225 ≤ 5.10.* ; unaffected 5.15.166 ≤ 5.15.* ; unaffected 6.1.108 ≤ 6.1.*

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