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CVE-2024-54031

Vulnérabilité non évaluée dans Linux (Linux)

CVSS 0.0 · Non évaluée
EPSS 0.2%
Linux•Linux•Versions : <6.1.124, <352f8eaaabd008f09d1e176194edc261a7304084, <4f49349c1963e507aa37c1ec05178faeb0103959, 59a59da8de47848575eedc141a74aae57696706d, 6.1.120, <d24cbc43cc7b41a0824b0bc6ec4d8436d8d7a9c0, 5.10.231, 5.15.174, 98d62cf0e26305dd6a1932a4054004290f4194bb, <5.4.289, e21855091f11df80d41239dbc5f8545b772c657d, 6.12.5, be4d0ac67d92e6a285cd3eeb672188d249c121b2, 23a6919bb3ecf6787f060476ee6810ad55ebf9c8, 7ffc7481153bbabf3332c6a19b289730c7e1edf5, 6.6.66, <6a14b46052eeb83175a95baf399283860b9d94c4, <6.12.9, <542ed8145e6f9392e3d0a86a0e9027d2ffd183e4, <5.10.233, <607774a13764676d4b8be9c8b9c66b8cf3469043, <6.6.70, 5.4.287, <5.15.176, 86c27603514cb8ead29857365cdd145404ee9706, <277f00b0c2dca8794cf4837722960bdc4174911f

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_hash: unaligned atomic read on struct nft_set_ext Access to genmask field in struct nft_set_ext results in unaligned atomic read: [ 72.130109] Unable to handle kernel paging request at virtual address ffff0000c2bb708c [ 72.131036] Mem abort info: [ 72.131213] ESR = 0x0000000096000021 [ 72.131446] EC = 0x25: DABT (current EL), IL = 32 bits [ 72.132209] SET = 0, FnV = 0 [ 72.133216] EA = 0, S1PTW = 0 [ 72.134080] FSC = 0x21: alignment fault [ 72.135593] Data abort info: [ 72.137194] ISV = 0, ISS = 0x00000021, ISS2 = 0x00000000 [ 72.142351] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 72.145989] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 72.150115] swapper pgtable: 4k pages, 48-bit VAs, pgdp=0000000237d27000 [ 72.154893] [ffff0000c2bb708c] pgd=0000000000000000, p4d=180000023ffff403, pud=180000023f84b403, pmd=180000023f835403, +pte=0068000102bb7707 [ 72.163021] Internal error: Oops: 0000000096000021 [#1] SMP [...] [ 72.170041] CPU: 7 UID: 0 PID: 54 Comm: kworker/7:0 Tainted: G E 6.13.0-rc3+ #2 [ 72.170509] Tainted: [E]=UNSIGNED_MODULE [ 72.170720] Hardware name: QEMU QEMU Virtual Machine, BIOS edk2-stable202302-for-qemu 03/01/2023 [ 72.171192] Workqueue: events_power_efficient nft_rhash_gc [nf_tables] [ 72.171552] pstate: 21400005 (nzCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) [ 72.171915] pc : nft_rhash_gc+0x200/0x2d8 [nf_tables] [ 72.172166] lr : nft_rhash_gc+0x128/0x2d8 [nf_tables] [ 72.172546] sp : ffff800081f2bce0 [ 72.172724] x29: ffff800081f2bd40 x28: ffff0000c2bb708c x27: 0000000000000038 [ 72.173078] x26: ffff0000c6780ef0 x25: ffff0000c643df00 x24: ffff0000c6778f78 [ 72.173431] x23: 000000000000001a x22: ffff0000c4b1f000 x21: ffff0000c6780f78 [ 72.173782] x20: ffff0000c2bb70dc x19: ffff0000c2bb7080 x18: 0000000000000000 [ 72.174135] x17: ffff0000c0a4e1c0 x16: 0000000000003000 x15: 0000ac26d173b978 [ 72.174485] x14: ffffffffffffffff x13: 0000000000000030 x12: ffff0000c6780ef0 [ 72.174841] x11: 0000000000000000 x10: ffff800081f2bcf8 x9 : ffff0000c3000000 [ 72.175193] x8 : 00000000000004be x7 : 0000000000000000 x6 : 0000000000000000 [ 72.175544] x5 : 0000000000000040 x4 : ffff0000c3000010 x3 : 0000000000000000 [ 72.175871] x2 : 0000000000003a98 x1 : ffff0000c2bb708c x0 : 0000000000000004 [ 72.176207] Call trace: [ 72.176316] nft_rhash_gc+0x200/0x2d8 [nf_tables] (P) [ 72.176653] process_one_work+0x178/0x3d0 [ 72.176831] worker_thread+0x200/0x3f0 [ 72.176995] kthread+0xe8/0xf8 [ 72.177130] ret_from_fork+0x10/0x20 [ 72.177289] Code: 54fff984 d503201f d2800080 91003261 (f820303f) [ 72.177557] ---[ end trace 0000000000000000 ]--- Align struct nft_set_ext to word size to address this and documentation it. pahole reports that this increases the size of elements for rhash and pipapo in 8 bytes on x86_64.

Gravité et risque d'exploitation

CVE-2024-54031 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 12.3 % des CVE référencées.

Que faire ?

  • Vérifiez si Linux (versions <6.1.124, <352f8eaaabd008f09d1e176194edc261a7304084, <4f49349c1963e507aa37c1ec05178faeb0103959, 59a59da8de47848575eedc141a74aae57696706d, 6.1.120, <d24cbc43cc7b41a0824b0bc6ec4d8436d8d7a9c0, 5.10.231, 5.15.174, 98d62cf0e26305dd6a1932a4054004290f4194bb, <5.4.289, e21855091f11df80d41239dbc5f8545b772c657d, 6.12.5, be4d0ac67d92e6a285cd3eeb672188d249c121b2, 23a6919bb3ecf6787f060476ee6810ad55ebf9c8, 7ffc7481153bbabf3332c6a19b289730c7e1edf5, 6.6.66, <6a14b46052eeb83175a95baf399283860b9d94c4, <6.12.9, <542ed8145e6f9392e3d0a86a0e9027d2ffd183e4, <5.10.233, <607774a13764676d4b8be9c8b9c66b8cf3469043, <6.6.70, 5.4.287, <5.15.176, 86c27603514cb8ead29857365cdd145404ee9706, <277f00b0c2dca8794cf4837722960bdc4174911f) 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

Rechercher une autre CVE