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CVE-2023-53204

Vulnérabilité non évaluée dans Linux (Linux)

CVSS 0.0 · Non évaluée
EPSS 0.1%
Linux•Linux•Versions : 9b8b611fe0f86f07a4ff4a5f3bcb0ea7ceb7da3b, <=6.1.*, <df97b5ea9f3ac9308c3a633524dab382cd59d9e5, df87da0783c4492b944badfea9d5c3c56b834697, <4.2, 5e226f9689d90ad8ab21b4a969ae3058777f0aff, dc6b0ec667f67d4768e72c1b7f1bbc14ea52379c, <3.15, 6.1.54, <3.13, aa51d1c24ec3b6605f7cc7ef500c96cd71d7ef90, <3.11, 4.4.1, 0, 3.2.78, 6.5.4, 3d024dcef2548028e9f9b7876a544e6e0af00175, <3.3, 4.3.5, 4.19.295, a5a6cf8c405e826ff7ed1308dde72560c0ed4854, <ac92f239a079678a035c0faad9089354a874aede, <=5.10.*, <=4.14.*, 3.12.57, 712f4aad406bb1ed67f3f98d04c044191f0ff593, 4.1.17, 5.4.257, 3.18.27, <adcf4e069358cdee8593663650ea447215a1c49e, <0bc36c0650b21df36fbec8136add83936eaf0607, <4.5, <4.4, 6.6, <=5.4.*, <b401d7e485b0a234cf8fe9a6ae99dbcd20863138, 3.10.96, 3.14.60, <=4.19.*, <b9cdbb38e030fc2fe97fe27b54cbb6b4fbff250f, <9151ed4b006125cba7c06c79df504340ea4e9386, 5.15.132, <03d133dfbcec9d439729cc64706c7eb6d1663a24, 5.10.195, <=*, 4.5, <=5.15.*, <=6.5.*, <3.19, 4.14.326, a5b9e44af8d3edaf49d14a91cc519a9fba439e67

Description

In the Linux kernel, the following vulnerability has been resolved: af_unix: Fix data-races around user->unix_inflight. user->unix_inflight is changed under spin_lock(unix_gc_lock), but too_many_unix_fds() reads it locklessly. Let's annotate the write/read accesses to user->unix_inflight. BUG: KCSAN: data-race in unix_attach_fds / unix_inflight write to 0xffffffff8546f2d0 of 8 bytes by task 44798 on cpu 1: unix_inflight+0x157/0x180 net/unix/scm.c:66 unix_attach_fds+0x147/0x1e0 net/unix/scm.c:123 unix_scm_to_skb net/unix/af_unix.c:1827 [inline] unix_dgram_sendmsg+0x46a/0x14f0 net/unix/af_unix.c:1950 unix_seqpacket_sendmsg net/unix/af_unix.c:2308 [inline] unix_seqpacket_sendmsg+0xba/0x130 net/unix/af_unix.c:2292 sock_sendmsg_nosec net/socket.c:725 [inline] sock_sendmsg+0x148/0x160 net/socket.c:748 ____sys_sendmsg+0x4e4/0x610 net/socket.c:2494 ___sys_sendmsg+0xc6/0x140 net/socket.c:2548 __sys_sendmsg+0x94/0x140 net/socket.c:2577 __do_sys_sendmsg net/socket.c:2586 [inline] __se_sys_sendmsg net/socket.c:2584 [inline] __x64_sys_sendmsg+0x45/0x50 net/socket.c:2584 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 read to 0xffffffff8546f2d0 of 8 bytes by task 44814 on cpu 0: too_many_unix_fds net/unix/scm.c:101 [inline] unix_attach_fds+0x54/0x1e0 net/unix/scm.c:110 unix_scm_to_skb net/unix/af_unix.c:1827 [inline] unix_dgram_sendmsg+0x46a/0x14f0 net/unix/af_unix.c:1950 unix_seqpacket_sendmsg net/unix/af_unix.c:2308 [inline] unix_seqpacket_sendmsg+0xba/0x130 net/unix/af_unix.c:2292 sock_sendmsg_nosec net/socket.c:725 [inline] sock_sendmsg+0x148/0x160 net/socket.c:748 ____sys_sendmsg+0x4e4/0x610 net/socket.c:2494 ___sys_sendmsg+0xc6/0x140 net/socket.c:2548 __sys_sendmsg+0x94/0x140 net/socket.c:2577 __do_sys_sendmsg net/socket.c:2586 [inline] __se_sys_sendmsg net/socket.c:2584 [inline] __x64_sys_sendmsg+0x45/0x50 net/socket.c:2584 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 value changed: 0x000000000000000c -> 0x000000000000000d Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 44814 Comm: systemd-coredum Not tainted 6.4.0-11989-g6843306689af #6 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014

Gravité et risque d'exploitation

CVE-2023-53204 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 0.12 %, ce qui la place devant 1.6 % des CVE référencées.

Que faire ?

  • Vérifiez si Linux (versions 9b8b611fe0f86f07a4ff4a5f3bcb0ea7ceb7da3b, <=6.1.*, <df97b5ea9f3ac9308c3a633524dab382cd59d9e5, df87da0783c4492b944badfea9d5c3c56b834697, <4.2, 5e226f9689d90ad8ab21b4a969ae3058777f0aff, dc6b0ec667f67d4768e72c1b7f1bbc14ea52379c, <3.15, 6.1.54, <3.13, aa51d1c24ec3b6605f7cc7ef500c96cd71d7ef90, <3.11, 4.4.1, 0, 3.2.78, 6.5.4, 3d024dcef2548028e9f9b7876a544e6e0af00175, <3.3, 4.3.5, 4.19.295, a5a6cf8c405e826ff7ed1308dde72560c0ed4854, <ac92f239a079678a035c0faad9089354a874aede, <=5.10.*, <=4.14.*, 3.12.57, 712f4aad406bb1ed67f3f98d04c044191f0ff593, 4.1.17, 5.4.257, 3.18.27, <adcf4e069358cdee8593663650ea447215a1c49e, <0bc36c0650b21df36fbec8136add83936eaf0607, <4.5, <4.4, 6.6, <=5.4.*, <b401d7e485b0a234cf8fe9a6ae99dbcd20863138, 3.10.96, 3.14.60, <=4.19.*, <b9cdbb38e030fc2fe97fe27b54cbb6b4fbff250f, <9151ed4b006125cba7c06c79df504340ea4e9386, 5.15.132, <03d133dfbcec9d439729cc64706c7eb6d1663a24, 5.10.195, <=*, 4.5, <=5.15.*, <=6.5.*, <3.19, 4.14.326, a5b9e44af8d3edaf49d14a91cc519a9fba439e67) 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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