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Ubuntu: (CVE-2023-52518): linux vulnerability

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Ubuntu: (CVE-2023-52518): linux vulnerability

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
03/02/2024
Created
11/21/2024
Added
11/19/2024
Modified
01/23/2025

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_codec: Fix leaking content of local_codecs The following memory leak can be observed when the controller supports codecs which are stored in local_codecs list but the elements are never freed: unreferenced object 0xffff88800221d840 (size 32): comm "kworker/u3:0", pid 36, jiffies 4294898739 (age 127.060s) hex dump (first 32 bytes): f8 d3 02 03 80 88 ff ff 80 d8 21 02 80 88 ff ff..........!..... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00................ backtrace: [<ffffffffb324f557>] __kmalloc+0x47/0x120 [<ffffffffb39ef37d>] hci_codec_list_add.isra.0+0x2d/0x160 [<ffffffffb39ef643>] hci_read_codec_capabilities+0x183/0x270 [<ffffffffb39ef9ab>] hci_read_supported_codecs+0x1bb/0x2d0 [<ffffffffb39f162e>] hci_read_local_codecs_sync+0x3e/0x60 [<ffffffffb39ff1b3>] hci_dev_open_sync+0x943/0x11e0 [<ffffffffb396d55d>] hci_power_on+0x10d/0x3f0 [<ffffffffb30c99b4>] process_one_work+0x404/0x800 [<ffffffffb30ca134>] worker_thread+0x374/0x670 [<ffffffffb30d9108>] kthread+0x188/0x1c0 [<ffffffffb304db6b>] ret_from_fork+0x2b/0x50 [<ffffffffb300206a>] ret_from_fork_asm+0x1a/0x30

Solution(s)

  • ubuntu-upgrade-linux
  • ubuntu-upgrade-linux-aws
  • ubuntu-upgrade-linux-gcp
  • ubuntu-upgrade-linux-gcp-6-5
  • ubuntu-upgrade-linux-hwe-6-5
  • ubuntu-upgrade-linux-laptop
  • ubuntu-upgrade-linux-lowlatency
  • ubuntu-upgrade-linux-lowlatency-hwe-6-5
  • ubuntu-upgrade-linux-nvidia-6-5
  • ubuntu-upgrade-linux-oem-6-5
  • ubuntu-upgrade-linux-oracle
  • ubuntu-upgrade-linux-oracle-6-5
  • ubuntu-upgrade-linux-raspi
  • ubuntu-upgrade-linux-riscv
  • ubuntu-upgrade-linux-starfive

References

  • https://attackerkb.com/topics/cve-2023-52518
  • CVE - 2023-52518
  • https://git.kernel.org/linus/b938790e70540bf4f2e653dcd74b232494d06c8f
  • https://www.cve.org/CVERecord?id=CVE-2023-52518
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