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CVE-2024-57902

Vulnérabilité élevée dans Linux (Linux)

CVSS 7.3 · Élevée
EPSS 0.3%
Linux•Linux•Versions : 6.13, 6.10.3, <=6.1.*, <=6.12.*, <6.1.124, <65c67049e9ed481f6b52264b39618b8c6dfb1d3e, 6.1.103, 5.15.165, <77ee7a6d16b6ec07b5c3ae2b6b60a24c1afbed09, 0, 83e2dfadcb6258fe3111c8a8ec9cf34465e55e64, 66f23a7b5174b5d3e7111fd2d0d5a4f3faaa12e5, 5a041d25b67042cbe06a0fb292ee22fd1147e65c, 5.10.233, d0a1f9aa70f0d8a05b6320e8a3f3b83adab8dac3, 5.15.176, 79eecf631c14e7f4057186570ac20e2cfac3802e, <4.20, <=5.10.*, <5.4.289, <=6.6.*, <fa57f07ba0622c8692f40e1300adca59277b0044, 6.12.9, 3dfd84aa72fa7329ed4a257c8f40e0c9aff4dc8f, 5.4.282, c77064e76c768fb101ea5ff92dc771142fc9d8fd, <=5.4.*, 5839f59ff1dd4e35b9e767927931a039484839e1, 6.1.124, <5.10.233, <d91b4a9baa018a001d5c884e236c0cfd31f9f4a1, 6.6.70, 5.10.224, <6.11, <6.6.70, 6.11, <66ffb0cf2125dcf9e902eede4a43653a24fd9cb2, <=*, 4.19.320, <=5.15.*, <5.15.176, 5.4.289, 6.6.44, <7aa78d0d8546d8ce5a764add3f55d72e707c18f1, <b65292a548d847099a4fe0fff53122a06e798e25

Description

In the Linux kernel, the following vulnerability has been resolved: af_packet: fix vlan_get_tci() vs MSG_PEEK Blamed commit forgot MSG_PEEK case, allowing a crash [1] as found by syzbot. Rework vlan_get_tci() to not touch skb at all, so that it can be used from many cpus on the same skb. Add a const qualifier to skb argument. [1] skbuff: skb_under_panic: text:ffffffff8a8da482 len:32 put:14 head:ffff88807a1d5800 data:ffff88807a1d5810 tail:0x14 end:0x140 dev:<NULL> ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:206 ! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 UID: 0 PID: 5880 Comm: syz-executor172 Not tainted 6.13.0-rc3-syzkaller-00762-g9268abe611b0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:skb_panic net/core/skbuff.c:206 [inline] RIP: 0010:skb_under_panic+0x14b/0x150 net/core/skbuff.c:216 Code: 0b 8d 48 c7 c6 9e 6c 26 8e 48 8b 54 24 08 8b 0c 24 44 8b 44 24 04 4d 89 e9 50 41 54 41 57 41 56 e8 3a 5a 79 f7 48 83 c4 20 90 <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 RSP: 0018:ffffc90003baf5b8 EFLAGS: 00010286 RAX: 0000000000000087 RBX: dffffc0000000000 RCX: 8565c1eec37aa000 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffff88802616fb50 R08: ffffffff817f0a4c R09: 1ffff92000775e50 R10: dffffc0000000000 R11: fffff52000775e51 R12: 0000000000000140 R13: ffff88807a1d5800 R14: ffff88807a1d5810 R15: 0000000000000014 FS: 00007fa03261f6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd65753000 CR3: 0000000031720000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> skb_push+0xe5/0x100 net/core/skbuff.c:2636 vlan_get_tci+0x272/0x550 net/packet/af_packet.c:565 packet_recvmsg+0x13c9/0x1ef0 net/packet/af_packet.c:3616 sock_recvmsg_nosec net/socket.c:1044 [inline] sock_recvmsg+0x22f/0x280 net/socket.c:1066 ____sys_recvmsg+0x1c6/0x480 net/socket.c:2814 ___sys_recvmsg net/socket.c:2856 [inline] do_recvmmsg+0x426/0xab0 net/socket.c:2951 __sys_recvmmsg net/socket.c:3025 [inline] __do_sys_recvmmsg net/socket.c:3048 [inline] __se_sys_recvmmsg net/socket.c:3041 [inline] __x64_sys_recvmmsg+0x199/0x250 net/socket.c:3041 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83

Gravité et risque d'exploitation

CVE-2024-57902 obtient un score CVSS de 7.3/10, soit une gravité élevée. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 0.27 %, ce qui la place devant 18.3 % des CVE référencées.

Que faire ?

  • Vérifiez si Linux (versions 6.13, 6.10.3, <=6.1.*, <=6.12.*, <6.1.124, <65c67049e9ed481f6b52264b39618b8c6dfb1d3e, 6.1.103, 5.15.165, <77ee7a6d16b6ec07b5c3ae2b6b60a24c1afbed09, 0, 83e2dfadcb6258fe3111c8a8ec9cf34465e55e64, 66f23a7b5174b5d3e7111fd2d0d5a4f3faaa12e5, 5a041d25b67042cbe06a0fb292ee22fd1147e65c, 5.10.233, d0a1f9aa70f0d8a05b6320e8a3f3b83adab8dac3, 5.15.176, 79eecf631c14e7f4057186570ac20e2cfac3802e, <4.20, <=5.10.*, <5.4.289, <=6.6.*, <fa57f07ba0622c8692f40e1300adca59277b0044, 6.12.9, 3dfd84aa72fa7329ed4a257c8f40e0c9aff4dc8f, 5.4.282, c77064e76c768fb101ea5ff92dc771142fc9d8fd, <=5.4.*, 5839f59ff1dd4e35b9e767927931a039484839e1, 6.1.124, <5.10.233, <d91b4a9baa018a001d5c884e236c0cfd31f9f4a1, 6.6.70, 5.10.224, <6.11, <6.6.70, 6.11, <66ffb0cf2125dcf9e902eede4a43653a24fd9cb2, <=*, 4.19.320, <=5.15.*, <5.15.176, 5.4.289, 6.6.44, <7aa78d0d8546d8ce5a764add3f55d72e707c18f1, <b65292a548d847099a4fe0fff53122a06e798e25) 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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