igmp: Fix data-races around sysctl_igmp_llm_reports. (Linux Linux)

CVE-2022-49590
MEDIUM 4.7

At a glance

Source
NVD
EPSS
EPSS 0.19 % · percentile 8 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: igmp: Fix data-races around sysctl_igmp_llm_reports. While reading sysctl_igmp_llm_reports, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. This test can be packed into a helper, so such changes will be in the follow-up series after net is merged into net-next. if (ipv4_is_local_multicast(pmc->multiaddr) && !READ_ONCE(net->ipv4.sysctl_igmp_llm_reports))

Weaknesses (CWE)

  • CWE-362 — Concurrent Execution using Shared Resource with Improper Synchronization

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HCISA-ADP
CVSS 3.1MEDIUM 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)
CVSS 3.1MEDIUM 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected df2cf4a78e488d26728590cb3c6b4fe4c4862c77 < a84b4afaca2573ed3aed1f8854aefe3ca5a82e72 ; affected df2cf4a78e488d26728590cb3c6b4fe4c4862c77 < d77969e7d4ccc26bf1f414a39ef35050a83ba6d5 ; affected df2cf4a78e488d26728590cb3c6b4fe4c4862c77 < ed876e99ccf417b8bd7fd8408ba5e8b008e46cc8 ; affected df2cf4a78e488d26728590cb3c6b4fe4c4862c77 < 1656ecaddf90e2a070ec2d2404cdae3edf80faca ; affected df2cf4a78e488d26728590cb3c6b4fe4c4862c77 < 473aad9ad57ff760005377e6f45a2ad4210e08ce ; affected df2cf4a78e488d26728590cb3c6b4fe4c4862c77 < 260446eb8e5541402b271343a4516f2b33dec1e4
Linux · Linuxaffected 4.3 ; unaffected 0 < 4.3 ; unaffected 4.9.325 ≤ 4.9.* ; unaffected 4.14.290 ≤ 4.14.* ; unaffected 4.19.254 ≤ 4.19.* ; unaffected 5.4.208 ≤ 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