tap: add missing verification for short frame (Linux Linux)

CVE-2024-41090
HIGH 8.8

At a glance

Source
NVD
EPSS
EPSS 0.26 % · percentile 17 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: tap: add missing verification for short frame The cited commit missed to check against the validity of the frame length in the tap_get_user_xdp() path, which could cause a corrupted skb to be sent downstack. Even before the skb is transmitted, the tap_get_user_xdp()-->skb_set_network_header() may assume the size is more than ETH_HLEN. Once transmitted, this could either cause out-of-bound access beyond the actual length, or confuse the underlayer with incorrect or inconsistent header length in the skb metadata. In the alternative path, tap_get_user() already prohibits short frame which has the length less than Ethernet header size from being transmitted. This is to drop any frame shorter than the Ethernet header size just like how tap_get_user() does. CVE: CVE-2024-41090

Weaknesses (CWE)

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 8.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HLinux
CVSS 3.1HIGH 8.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
CVSS 3.1HIGH 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 0efac27791ee068075d80f07c55a229b1335ce12 < 8be915fc5ff9a5e296f6538be12ea75a1a93bdea ; affected 0efac27791ee068075d80f07c55a229b1335ce12 < 7431144b406ae82807eb87d8c98e518475b0450f ; affected 0efac27791ee068075d80f07c55a229b1335ce12 < e5e5e63c506b93b89b01f522b6a7343585f784e6 ; affected 0efac27791ee068075d80f07c55a229b1335ce12 < ee93e6da30377cf2a75e16cd32bb9fcd86a61c46 ; affected 0efac27791ee068075d80f07c55a229b1335ce12 < aa6a5704cab861c9b2ae9f475076e1881e87f5aa ; affected 0efac27791ee068075d80f07c55a229b1335ce12 < 73d462a38d5f782b7c872fe9ae8393d9ef5483da
Linux · Linuxaffected 4.20 ; unaffected 0 < 4.20 ; unaffected 5.4.281 ≤ 5.4.* ; unaffected 5.10.223 ≤ 5.10.* ; unaffected 5.15.164 ≤ 5.15.* ; unaffected 6.1.102 ≤ 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