5.5

CVE-2024-46676: linux Divide By Zero

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2024-46676DEBIAN-CVE-2024-46676
Published 13-09-2024Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2024-46676 is a medium (CVSS 5.5) Divide By Zero vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.8% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.24%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 31 · Related 28
DLA-3912-1DLA-4008-1DSA-5782-1SUSE-SU-2024:3551-1SUSE-SU-2024:3553-1SUSE-SU-2024:3559-1

Timeline

  1. 13-09-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

15%

Versus all other CVEs

30-day change

0.00 pp

From 0.24% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.24%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu129 products
  • linuxAll versions (No fix recorded) | < 5.4.0-200.220 | < 5.15.0-125.135 | < 6.8.0-50.51
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1135.145 | < 5.15.0-1072.78 | < 6.8.0-1020.22
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ dfccd0f580445d176acea174175b3e6518cc91f7, < c5e05237444f32f6cfe5d907603a232c77a08b31 | ≥ dfccd0f580445d176acea174175b3e6518cc91f7, < 8ddaea033de051ed61b39f6b69ad54a411172b33 | ≥ dfccd0f580445d176acea174175b3e6518cc91f7, < 7535db0624a2dede374c42040808ad9a9101d723 | ≥ dfccd0f580445d176acea174175b3e6518cc91f7, < 7ecd3dd4f8eecd3309432156ccfe24768e009ec4 | ≥ dfccd0f580445d176acea174175b3e6518cc91f7, < 56ad559cf6d87f250a8d203b555dfc3716afa946 | ≥ dfccd0f580445d176acea174175b3e6518cc91f7, < 64513d0e546a1f19e390f7e5eba3872bfcbdacf5 | ≥ dfccd0f580445d176acea174175b3e6518cc91f7, < febccb39255f9df35527b88c953b2e0deae50e53 | 3.12
  • linux_kernel≥ 3.12, < 5.4.283 | ≥ 5.5, < 5.10.225 | ≥ 5.11, < 5.15.166 | ≥ 5.16, < 6.1.108 | ≥ 6.2, < 6.6.49 | ≥ 6.7, < 6.10.8 | 6.11:rc1 | 6.11:rc2 | 6.11:rc3 | 6.11:rc4 | 6.11:rc5
Debian1 product
  • linux< 6.1.112-1 | < 6.10.9-1

3 vendors · 132 products

References

30 links
Show all 30 references