tipc: fix null-ptr-deref when acquiring remote ip of ethernet bearer (Linux Linux)

CVE-2025-38184
HIGH 7.8

En bref

Source
NVD
EPSS
EPSS 0.21 % · centile 10 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: tipc: fix null-ptr-deref when acquiring remote ip of ethernet bearer The reproduction steps: 1. create a tun interface 2. enable l2 bearer 3. TIPC_NL_UDP_GET_REMOTEIP with media name set to tun tipc: Started in network mode tipc: Node identity 8af312d38a21, cluster identity 4711 tipc: Enabled bearer <eth:syz_tun>, priority 1 Oops: general protection fault KASAN: null-ptr-deref in range CPU: 1 UID: 1000 PID: 559 Comm: poc Not tainted 6.16.0-rc1+ #117 PREEMPT Hardware name: QEMU Ubuntu 24.04 PC RIP: 0010:tipc_udp_nl_dump_remoteip+0x4a4/0x8f0 the ub was in fact a struct dev. when bid != 0 && skip_cnt != 0, bearer_list[bid] may be NULL or other media when other thread changes it. fix this by checking media_id.

Faiblesses (CWE)

  • CWE-476 — Déréférencement de pointeur nul

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 832629ca5c313e122b22b8e73a6d80f111b1a1ae < 3998283e4c32c0fe69edd59b0876c193f50abce6 ; affected 832629ca5c313e122b22b8e73a6d80f111b1a1ae < c2e17984752b9131061d1a2ca1199da2706337fd ; affected 832629ca5c313e122b22b8e73a6d80f111b1a1ae < 8595350615f952fcf8bc861464a6bf6b1129af50 ; affected 832629ca5c313e122b22b8e73a6d80f111b1a1ae < 05d332ba075753d569d66333d62d60fff5f57ad8 ; affected 832629ca5c313e122b22b8e73a6d80f111b1a1ae < d3dfe821dfe091c0045044343c8d86596d66e2cf ; affected 832629ca5c313e122b22b8e73a6d80f111b1a1ae < 0d3d91c3500f0c480e016faa4e2259c588616e59
Linux · Linuxaffected 4.9 ; unaffected 0 < 4.9 ; unaffected 5.4.295 ≤ 5.4.* ; unaffected 5.10.239 ≤ 5.10.* ; unaffected 5.15.186 ≤ 5.15.* ; unaffected 6.1.142 ≤ 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