> CVE-2023-52922 [HIGH]

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PUBLISHED
2024-11-28 15:15
MODIFIED
2025-06-13 20:15
CVSS_SCORE V3
7.8
EPSS (Prob. Exploit)
0.29%
Top 79.1%
DATA SOURCES:
NVD 🔗 2025-10-18 RED HAT 🔗 2025-10-18 CVE PROJECT 🔗 2026-01-19 FIRST EPSS 🔗 2026-10-25 OSV 🔗 2026-03-01

> DESCRIPTION

In the Linux kernel, the following vulnerability has been resolved: can: bcm: Fix UAF in bcm_proc_show() BUG: KASAN: slab-use-after-free in bcm_proc_show+0x969/0xa80 Read of size 8 at addr ffff888155846230 by task cat/7862 CPU: 1 PID: 7862 Comm: cat Not tainted 6.5.0-rc1-00153-gc8746099c197 #230 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0xd5/0x150 print_report+0xc1/0x5e0 kasan_report+0xba/0xf0 bcm_proc_show+0x969/0xa80 seq_read_iter+0x4f6/0x1260 seq_read+0x165/0x210 proc_reg_read+0x227/0x300 vfs_read+0x1d5/0x8d0 ksys_read+0x11e/0x240 do_syscall_64+0x35/0xb0 entry_SYSCALL_64_after_hwframe+0x63/0xcd Allocated by task 7846: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 __kasan_kmalloc+0x9e/0xa0 bcm_sendmsg+0x264b/0x44e0 sock_sendmsg+0xda/0x180 ____sys_sendmsg+0x735/0x920 ___sys_sendmsg+0x11d/0x1b0 __sys_sendmsg+0xfa/0x1d0 do_syscall_64+0x35/0xb0 entry_SYSCALL_64_after_hwframe+0x63/0xcd Freed by task 7846: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 kasan_save_free_info+0x27/0x40 ____kasan_slab_free+0x161/0x1c0 slab_free_freelist_hook+0x119/0x220 __kmem_cache_free+0xb4/0x2e0 rcu_core+0x809/0x1bd0 bcm_op is freed before procfs entry be removed in bcm_release(), this lead to bcm_proc_show() may read the freed bcm_op.

> AFFECTED_PRODUCTS

Linux - Linux Kernel
>= 2.6.25 < 4.14.322
Linux - Linux Kernel
>= 4.15 < 4.19.291
Linux - Linux Kernel
>= 4.20 < 5.4.251
Linux - Linux Kernel
>= 5.5 < 5.10.188
Linux - Linux Kernel
>= 5.11 < 5.15.123
Linux - Linux Kernel
>= 5.16 < 6.1.42
Linux - Linux Kernel
>= 6.2 < 6.4.7
Linux - Linux Kernel
Version: 6.5

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Local (L)
Exploit nécessite un accès local au système
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
Low (L)
Authentifié avec compte utilisateur basique
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
High (H)
Divulgation totale d'informations
I (Impact Intégrité)
Integrity Impact
High (H)
Modification totale des données possible
A (Impact Disponibilité)
Availability Impact
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
High
Divulgation totale d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
High
Interruption totale du service possible

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: kpatch-patch-5_14_0-70_112_1, kpatch-patch-5_14_0-70_121_1, kpatch-patch-5_14_0-70_124_1, and kpatch-patch-5_14_0-70_85_1 security update
An update for kpatch-patch-5_14_0-70_112_1, kpatch-patch-5_14_0-70_121_1, kpatch-patch-5_14_0-70_124_1, and kpatch-patch-5_14_0-70_85_1 is now available for Red Hat Enterprise Linux 9.0 Update Service...
Red Hat Security Advisory: kpatch-patch-4_18_0-477_43_1, kpatch-patch-4_18_0-477_67_1, kpatch-patch-4_18_0-477_81_1, and kpatch-patch-4_18_0-477_89_1 security update
An update for kpatch-patch-4_18_0-477_43_1, kpatch-patch-4_18_0-477_67_1, kpatch-patch-4_18_0-477_81_1, and kpatch-patch-4_18_0-477_89_1 is now available for Red Hat Enterprise Linux 8.8 Extended Upda...
Red Hat Security Advisory: kpatch-patch-5_14_0-427_13_1, kpatch-patch-5_14_0-427_31_1, kpatch-patch-5_14_0-427_44_1, and kpatch-patch-5_14_0-427_55_1 security update
An update for kpatch-patch-5_14_0-427_13_1, kpatch-patch-5_14_0-427_31_1, kpatch-patch-5_14_0-427_44_1, and kpatch-patch-5_14_0-427_55_1 is now available for Red Hat Enterprise Linux 9.4 Extended Upda...
Red Hat Security Advisory: kpatch-patch-5_14_0-284_104_1, kpatch-patch-5_14_0-284_52_1, kpatch-patch-5_14_0-284_79_1, and kpatch-patch-5_14_0-284_92_1 security update
An update for kpatch-patch-5_14_0-284_104_1, kpatch-patch-5_14_0-284_52_1, kpatch-patch-5_14_0-284_79_1, and kpatch-patch-5_14_0-284_92_1 is now available for Red Hat Enterprise Linux 9.2 Extended Upd...
Red Hat Security Advisory: kpatch-patch-4_18_0-372_118_1, kpatch-patch-4_18_0-372_131_1, kpatch-patch-4_18_0-372_137_1, and kpatch-patch-4_18_0-372_91_1 security update
An update for kpatch-patch-4_18_0-372_118_1, kpatch-patch-4_18_0-372_131_1, kpatch-patch-4_18_0-372_137_1, and kpatch-patch-4_18_0-372_91_1 is now available for Red Hat Enterprise Linux 8.6 Update Ser...
Red Hat Security Advisory: kpatch-patch-4_18_0-305_120_1, kpatch-patch-4_18_0-305_138_1, kpatch-patch-4_18_0-305_145_1, and kpatch-patch-4_18_0-305_150_1 security update
An update for kpatch-patch-4_18_0-305_120_1, kpatch-patch-4_18_0-305_138_1, kpatch-patch-4_18_0-305_145_1, and kpatch-patch-4_18_0-305_150_1 is now available for Red Hat Enterprise Linux 8.4 Update Se...
Red Hat Security Advisory: kpatch-patch-4_18_0-553, kpatch-patch-4_18_0-553_16_1, kpatch-patch-4_18_0-553_30_1, and kpatch-patch-4_18_0-553_40_1 security update
An update for kpatch-patch-4_18_0-553, kpatch-patch-4_18_0-553_16_1, kpatch-patch-4_18_0-553_30_1, and kpatch-patch-4_18_0-553_40_1 is now available for Red Hat Enterprise Linux 8. Red Hat Product Se...
Red Hat Security Advisory: kpatch-patch-5_14_0-503_15_1 and kpatch-patch-5_14_0-503_26_1 security update
An update for kpatch-patch-5_14_0-503_15_1 and kpatch-patch-5_14_0-503_26_1 is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact...
Red Hat Security Advisory: kernel-rt security update
An update for kernel-rt is now available for Red Hat Enterprise Linux 9.2 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vu...
Red Hat Security Advisory: kernel security update
An update for kernel is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (C...
Red Hat Security Advisory: kernel security update
An update for kernel is now available for Red Hat Enterprise Linux 9.2 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulne...
Red Hat Security Advisory: kernel-rt security update
An update for kernel-rt is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System...
Red Hat Security Advisory: kernel security update
An update for kernel is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulne...
Red Hat Security Advisory: kernel security update
An update for kernel is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (C...
Red Hat Security Advisory: kernel security update
An update for kernel is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, and Red Hat Enterprise...
Red Hat Security Advisory: kernel security update
An update for kernel is now available for Red Hat Enterprise Linux 8.8 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulne...
Red Hat Security Advisory: kernel-rt security update
An update for kernel-rt is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, and Red Hat Enterpri...
Red Hat Security Advisory: kernel security update
An update for kernel is now available for Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Co...
Red Hat Security Advisory: kernel security update
An update for kernel is now available for Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION. Red Hat Product Security has rated this update as having a security impact of Important....
Red Hat Security Advisory: kernel security update
An update for kernel is now available for Red Hat Enterprise Linux 7.7 Advanced Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulne...
Red Hat Security Advisory: kernel-rt security update
An update for kernel-rt is now available for Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A...
Red Hat Security Advisory: kernel-rt security update
An update for kernel-rt is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common V...
Red Hat Security Advisory: kernel security update
An update for kernel is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vuln...
Red Hat Security Advisory: kernel security update
An update for kernel is now available for Red Hat Enterprise Linux 9.4 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulne...
Red Hat Security Advisory: kernel security update
An update for kernel is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, and Red Hat Enterprise...

> RED HAT SEVERITY ASSESSMENT

THREAT SEVERITY
Important

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

can: bcm: Fix UAF in bcm_proc_show()

AFFECTED PACKAGES:
Unknown / Unknown
1913 versions affected
Unknown / Unknown
1903 versions affected

> HISTORIQUE DES MODIFICATIONS

Première apparition
28/11/2024 15:15
Source: NVD
📊 ENRICHISSEMENT 18/10/2025 14:47
CVEPROJECT
Champ modifié: CVE Project
Ancienne valeur:
Non
Nouvelle valeur:
Oui
📊 ENRICHISSEMENT 18/10/2025 12:29
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
N/A
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 18/10/2025 12:29
REDHAT
Champ modifié: Red Hat
Ancienne valeur:
Non
Nouvelle valeur:
Oui
Total des modifications: 3 Dernière mise à jour: 1 year ago
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