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CVE-2024-35902

Vulnérabilité non évaluée dans Linux (Linux)

CVSS 0.0 · Non évaluée
EPSS 0.2%
Linux•Linux•Versions : <5.4.274, 6.9, <=6.1.*, 6.1.82, <6.6.26, 6.8.5, 997efea2bf3a4adb96c306b9ad6a91442237bf5b, <d49fac38479bfdaec52b3ea274d290c47a294029, 0, 6.7.10, <62fc3357e079a07a22465b9b6ef71bb6ea75ee4b, 6.6.26, 5.4.272, 5.15.154, <d275de8ea7be3a453629fddae41d4156762e814c, 6.8, <6.8, <6794090c742008c53b344b35b021d4a3093dc50a, <92309bed3c5fbe2ccd4c45056efd42edbd06162d, <cbaac2e5488ed54833897264a5ffb2a341a9f196, <4.19.312, <=5.10.*, <=6.6.*, 5.10.215, 5.10.213, 2b505d05280739ce31d5708da840f42df827cb85, 786854141057751bc08eb26f1b02e97c1631c8f4, 998fd719e6d6468b930ac0c44552ea9ff8b07b80, <bcd46782e2ec3825d10c1552fcb674d491cc09f9, 5.15.152, <=5.4.*, <5.15.154, 4.19.312, <=4.19.*, 5.4.274, <=6.8.*, 9dfc15a10dfd44f8ff7f27488651cb5be6af83c2, c055fc00c07be1f0df7375ab0036cebd1106ed38, 907761307469adecb02461a14120e9a1812a5fb1, b562ebe21ed9adcf42242797dd6cb75beef12bf0, 6.1.85, <=*, <cfb786b03b03c5ff38882bee38525eb9987e4d14, <=5.15.*, 6.6.22, <6.1.85, 4.19.310, <5.10.215

Description

In the Linux kernel, the following vulnerability has been resolved: net/rds: fix possible cp null dereference cp might be null, calling cp->cp_conn would produce null dereference [Simon Horman adds:] Analysis: * cp is a parameter of __rds_rdma_map and is not reassigned. * The following call-sites pass a NULL cp argument to __rds_rdma_map() - rds_get_mr() - rds_get_mr_for_dest * Prior to the code above, the following assumes that cp may be NULL (which is indicative, but could itself be unnecessary) trans_private = rs->rs_transport->get_mr( sg, nents, rs, &mr->r_key, cp ? cp->cp_conn : NULL, args->vec.addr, args->vec.bytes, need_odp ? ODP_ZEROBASED : ODP_NOT_NEEDED); * The code modified by this patch is guarded by IS_ERR(trans_private), where trans_private is assigned as per the previous point in this analysis. The only implementation of get_mr that I could locate is rds_ib_get_mr() which can return an ERR_PTR if the conn (4th) argument is NULL. * ret is set to PTR_ERR(trans_private). rds_ib_get_mr can return ERR_PTR(-ENODEV) if the conn (4th) argument is NULL. Thus ret may be -ENODEV in which case the code in question will execute. Conclusion: * cp may be NULL at the point where this patch adds a check; this patch does seem to address a possible bug

Gravité et risque d'exploitation

CVE-2024-35902 obtient un score CVSS de 0.0/10, soit une gravité non évaluée. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 0.22 %, ce qui la place devant 12.1 % des CVE référencées.

Que faire ?

  • Vérifiez si Linux (versions <5.4.274, 6.9, <=6.1.*, 6.1.82, <6.6.26, 6.8.5, 997efea2bf3a4adb96c306b9ad6a91442237bf5b, <d49fac38479bfdaec52b3ea274d290c47a294029, 0, 6.7.10, <62fc3357e079a07a22465b9b6ef71bb6ea75ee4b, 6.6.26, 5.4.272, 5.15.154, <d275de8ea7be3a453629fddae41d4156762e814c, 6.8, <6.8, <6794090c742008c53b344b35b021d4a3093dc50a, <92309bed3c5fbe2ccd4c45056efd42edbd06162d, <cbaac2e5488ed54833897264a5ffb2a341a9f196, <4.19.312, <=5.10.*, <=6.6.*, 5.10.215, 5.10.213, 2b505d05280739ce31d5708da840f42df827cb85, 786854141057751bc08eb26f1b02e97c1631c8f4, 998fd719e6d6468b930ac0c44552ea9ff8b07b80, <bcd46782e2ec3825d10c1552fcb674d491cc09f9, 5.15.152, <=5.4.*, <5.15.154, 4.19.312, <=4.19.*, 5.4.274, <=6.8.*, 9dfc15a10dfd44f8ff7f27488651cb5be6af83c2, c055fc00c07be1f0df7375ab0036cebd1106ed38, 907761307469adecb02461a14120e9a1812a5fb1, b562ebe21ed9adcf42242797dd6cb75beef12bf0, 6.1.85, <=*, <cfb786b03b03c5ff38882bee38525eb9987e4d14, <=5.15.*, 6.6.22, <6.1.85, 4.19.310, <5.10.215) est présent sur votre parc.
  • Appliquez le correctif ou la version corrigée indiqués dans les références de l'éditeur.
  • À défaut de correctif, limitez l'exposition (filtrage réseau, désactivation du composant).
  • Automatisez la détection : les agents CVE Heimdall (gratuits, open source) corrèlent l'inventaire de vos serveurs avec la base CVE.

Références

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