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CVE-2023-52752

HIGH
Published 2024-05-21T15:30:40.901Z
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CVSS Score

V3.1
7.8
/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2023.03.01
0.000
probability
of exploitation in the wild

There is a 0.0% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-01-25
Exploit Probability
Percentile: 0.051
Higher than 5.1% of all CVEs

Attack Vector Metrics

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Description

In the Linux kernel, the following vulnerability has been resolved:

smb: client: fix use-after-free bug in cifs_debug_data_proc_show()

Skip SMB sessions that are being teared down
(e.g. @ses->ses_status == SES_EXITING) in cifs_debug_data_proc_show()
to avoid use-after-free in @ses.

This fixes the following GPF when reading from /proc/fs/cifs/DebugData
while mounting and umounting

[ 816.251274] general protection fault, probably for non-canonical
address 0x6b6b6b6b6b6b6d81: 0000 [#1] PREEMPT SMP NOPTI
...
[ 816.260138] Call Trace:
[ 816.260329] <TASK>
[ 816.260499] ? die_addr+0x36/0x90
[ 816.260762] ? exc_general_protection+0x1b3/0x410
[ 816.261126] ? asm_exc_general_protection+0x26/0x30
[ 816.261502] ? cifs_debug_tcon+0xbd/0x240 [cifs]
[ 816.261878] ? cifs_debug_tcon+0xab/0x240 [cifs]
[ 816.262249] cifs_debug_data_proc_show+0x516/0xdb0 [cifs]
[ 816.262689] ? seq_read_iter+0x379/0x470
[ 816.262995] seq_read_iter+0x118/0x470
[ 816.263291] proc_reg_read_iter+0x53/0x90
[ 816.263596] ? srso_alias_return_thunk+0x5/0x7f
[ 816.263945] vfs_read+0x201/0x350
[ 816.264211] ksys_read+0x75/0x100
[ 816.264472] do_syscall_64+0x3f/0x90
[ 816.264750] entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[ 816.265135] RIP: 0033:0x7fd5e669d381

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Linux

Linux

Affected Versions:

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Linux

Linux

Affected Versions:

5.10.237 5.15.181 6.1.64 6.5.13 6.6.3 6.7
linux

linux_kernel

Affected Versions:

6.7
linux

linux_kernel

Affected Versions:

6.6.3
linux

linux_kernel

Affected Versions:

1da177e4c3f4
linux

linux_kernel

Affected Versions:

6.1.64
linux

linux_kernel

Affected Versions:

6.5.13

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-c3wm-p2jr-8f5g

Advisory Details

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix use-after-free bug in cifs_debug_data_proc_show() Skip SMB sessions that are being teared down (e.g. @ses->ses_status == SES_EXITING) in cifs_debug_data_proc_show() to avoid use-after-free in @ses. This fixes the following GPF when reading from /proc/fs/cifs/DebugData while mounting and umounting [ 816.251274] general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b6d81: 0000 [#1] PREEMPT SMP NOPTI ... [ 816.260138] Call Trace: [ 816.260329] <TASK> [ 816.260499] ? die_addr+0x36/0x90 [ 816.260762] ? exc_general_protection+0x1b3/0x410 [ 816.261126] ? asm_exc_general_protection+0x26/0x30 [ 816.261502] ? cifs_debug_tcon+0xbd/0x240 [cifs] [ 816.261878] ? cifs_debug_tcon+0xab/0x240 [cifs] [ 816.262249] cifs_debug_data_proc_show+0x516/0xdb0 [cifs] [ 816.262689] ? seq_read_iter+0x379/0x470 [ 816.262995] seq_read_iter+0x118/0x470 [ 816.263291] proc_reg_read_iter+0x53/0x90 [ 816.263596] ? srso_alias_return_thunk+0x5/0x7f [ 816.263945] vfs_read+0x201/0x350 [ 816.264211] ksys_read+0x75/0x100 [ 816.264472] do_syscall_64+0x3f/0x90 [ 816.264750] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 816.265135] RIP: 0033:0x7fd5e669d381

CVSS Scoring

CVSS Score

7.5

CVSS Vector

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

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2023-52752
WEB https://git.kernel.org/stable/c/0ab6f842452ce2cae04209d4671ac6289d0aef8a
WEB https://git.kernel.org/stable/c/2abdf136784b7edaec7ffe0f4b461b63f9c4c4de
WEB https://git.kernel.org/stable/c/336a066990bb3962c46daf574ace596bda9303ce
WEB https://git.kernel.org/stable/c/558817597d5fbd7af31f891b67b0fd20f0d047b7
WEB https://git.kernel.org/stable/c/89929ea46f9cc11ba66d2c64713aa5d5dc723b09
WEB https://git.kernel.org/stable/c/d328c09ee9f15ee5a26431f5aad7c9239fa85e62

Advisory provided by GitHub Security Advisory Database. Published: May 21, 2024, Modified: May 2, 2025

References

https://git.kernel.org/stable/c/2abdf136784b7edaec7ffe0f4b461b63f9c4c4de
https://git.kernel.org/stable/c/336a066990bb3962c46daf574ace596bda9303ce
https://git.kernel.org/stable/c/558817597d5fbd7af31f891b67b0fd20f0d047b7
https://git.kernel.org/stable/c/89929ea46f9cc11ba66d2c64713aa5d5dc723b09
https://git.kernel.org/stable/c/0ab6f842452ce2cae04209d4671ac6289d0aef8a
https://git.kernel.org/stable/c/d328c09ee9f15ee5a26431f5aad7c9239fa85e62
Published: 2024-05-21T15:30:40.901Z
Last Modified: 2025-05-07T19:50:52.035Z
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