Vulnerability-Lookup

FKIE_CVE-2026-31679

Vulnerability from fkie_nvd - Published: 2026-04-25 09:16 - Updated: 2026-05-06 21:25

Severity

7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: openvswitch: validate MPLS set/set_masked payload length validate_set() accepted OVS_KEY_ATTR_MPLS as variable-sized payload for SET/SET_MASKED actions. In action handling, OVS expects fixed-size MPLS key data (struct ovs_key_mpls). Use the already normalized key_len (masked case included) and reject non-matching MPLS action key sizes. Reject invalid MPLS action payload lengths early.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2ca33b88a79ca42f017ae0f7011280325655438e	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4cae986225f8b8679ad86b924918e7d75a96aa61	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/546b68ac893595877ffbd7751e5c55fd1c43ede6	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/68f32ef0683c8d1c05cd2e4f16818fa63ff59c6f	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/8ed7b9930cbc3bc71f868fa79a68700ac88d586a	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/98de18d327ef8cbbb704980e359e4872d8c28997	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/bd50c7484c3bb34097571c1334174fb8b7408036	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c1f97152df8dfb17e855ddf0fc409b7bd13e9700	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0

JSON

To clipboard

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          "confidentialityImpact": "HIGH",
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          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
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}

CVE-2026-31679 (GCVE-0-2026-31679)

Vulnerability from cvelistv5 – Published: 2026-04-25 08:46 – Updated: 2026-05-11 22:13

Title

openvswitch: validate MPLS set/set_masked payload length

Summary

Severity

7.1 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/68f32ef0683c8d1c0…
https://git.kernel.org/stable/c/4cae986225f8b8679…
https://git.kernel.org/stable/c/8ed7b9930cbc3bc71…
https://git.kernel.org/stable/c/c1f97152df8dfb17e…
https://git.kernel.org/stable/c/98de18d327ef8cbbb…
https://git.kernel.org/stable/c/bd50c7484c3bb3409…
https://git.kernel.org/stable/c/2ca33b88a79ca42f0…
https://git.kernel.org/stable/c/546b68ac893595877…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 , < 68f32ef0683c8d1c05cd2e4f16818fa63ff59c6f (git) Affected: fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 , < 4cae986225f8b8679ad86b924918e7d75a96aa61 (git) Affected: fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 , < 8ed7b9930cbc3bc71f868fa79a68700ac88d586a (git) Affected: fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 , < c1f97152df8dfb17e855ddf0fc409b7bd13e9700 (git) Affected: fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 , < 98de18d327ef8cbbb704980e359e4872d8c28997 (git) Affected: fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 , < bd50c7484c3bb34097571c1334174fb8b7408036 (git) Affected: fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 , < 2ca33b88a79ca42f017ae0f7011280325655438e (git) Affected: fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 , < 546b68ac893595877ffbd7751e5c55fd1c43ede6 (git)
Linux	Linux	Affected: 5.5 Unaffected: 0 , < 5.5 (semver) Unaffected: 5.10.253 , ≤ 5.10.* (semver) Unaffected: 5.15.203 , ≤ 5.15.* (semver) Unaffected: 6.1.168 , ≤ 6.1.* (semver) Unaffected: 6.6.131 , ≤ 6.6.* (semver) Unaffected: 6.12.80 , ≤ 6.12.* (semver) Unaffected: 6.18.21 , ≤ 6.18.* (semver) Unaffected: 6.19.11 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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          "defaultStatus": "unaffected",
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          "programFiles": [
            "net/openvswitch/flow_netlink.c"
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2026-31679

CVE-2026-31679 (GCVE-0-2026-31679)

Tags

Sightings

Nomenclature