tunnels: fix kasan splat when generating ipv4 pmtu error (Linux Linux)
En bref
- Source
- NVD
- EPSS
- EPSS 0.30 % · centile 22 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- Linux
- Statut NVD
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: tunnels: fix kasan splat when generating ipv4 pmtu error If we try to emit an icmp error in response to a nonliner skb, we get BUG: KASAN: slab-out-of-bounds in ip_compute_csum+0x134/0x220 Read of size 4 at addr ffff88811c50db00 by task iperf3/1691 CPU: 2 PID: 1691 Comm: iperf3 Not tainted 6.5.0-rc3+ #309 [..] kasan_report+0x105/0x140 ip_compute_csum+0x134/0x220 iptunnel_pmtud_build_icmp+0x554/0x1020 skb_tunnel_check_pmtu+0x513/0xb80 vxlan_xmit_one+0x139e/0x2ef0 vxlan_xmit+0x1867/0x2760 dev_hard_start_xmit+0x1ee/0x4f0 br_dev_queue_push_xmit+0x4d1/0x660 [..] ip_compute_csum() cannot deal with nonlinear skbs, so avoid it. After this change, splat is gone and iperf3 is no longer stuck.
Faiblesses (CWE)
- CWE-125 — Lecture hors limites
Références
- https://git.kernel.org/stable/c/5850c391fd7e25662334cb3cbf29a62bcbff1084
- https://git.kernel.org/stable/c/e95808121953410db8c59f0abfde70ac0d34222c
- https://git.kernel.org/stable/c/da5f42a6e7485fbb7a6dbd6a2b3045e19e4df5cc
- https://git.kernel.org/stable/c/fe6a9f7516735be9fdabab00e47ef7a3403a174d
- https://git.kernel.org/stable/c/6a7ac3d20593865209dceb554d8b3f094c6bd940
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H | Linux |
| CVSS 3.1 | CRITICAL 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H | NVD · nvd@nist.gov (Primary) |
Références européennes
- ENISA EUVD · EUVD-2025-32264
- GCVE · GCVE-0-2023-53600
Avis du CERT-FR
- CERTFR-2025-AVI-1073 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-1047 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-1032 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-1009 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.9 < 5.10.191cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.127cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 6.1.46cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.2 < 6.4.11cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.5:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.5:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.5:rc4:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.5:rc5:*:*:*:*:*:*
Produits affectés
| Produit | Versions |
|---|---|
| Linux · Linux | affected 4cb47a8644cc9eb8ec81190a50e79e6530d0297f < 5850c391fd7e25662334cb3cbf29a62bcbff1084 ; affected 4cb47a8644cc9eb8ec81190a50e79e6530d0297f < e95808121953410db8c59f0abfde70ac0d34222c ; affected 4cb47a8644cc9eb8ec81190a50e79e6530d0297f < da5f42a6e7485fbb7a6dbd6a2b3045e19e4df5cc ; affected 4cb47a8644cc9eb8ec81190a50e79e6530d0297f < fe6a9f7516735be9fdabab00e47ef7a3403a174d ; affected 4cb47a8644cc9eb8ec81190a50e79e6530d0297f < 6a7ac3d20593865209dceb554d8b3f094c6bd940 |
| Linux · Linux | affected 5.9 ; unaffected 0 < 5.9 ; unaffected 5.10.191 ≤ 5.10.* ; unaffected 5.15.127 ≤ 5.15.* ; unaffected 6.1.46 ≤ 6.1.* ; unaffected 6.4.11 ≤ 6.4.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |