CVE-2024-53233

MEDIUM EPSS 12.1%
Published Dec 27, 20241y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Dec 27, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: unicode: Fix utf8_load() error path utf8_load() requests the symbol "utf8_data_table" and then checks if the requested UTF-8 version is supported. If it's unsupported, it tries to put the data table using symbol_put(). If an unsupported version is requested, symbol_put() fails like this: kernel BUG at kernel/module/main.c:786! RIP: 0010:__symbol_put+0x93/0xb0 Call Trace: <TASK> ? __die_body.cold+0x19/0x27 ? die+0x2e/0x50 ? do_trap+0xca/0x110 ? do_error_trap+0x65/0x80 ? __symbol_put+0x93/0xb0 ? exc_invalid_op+0x51/0x70 ? __symbol_put+0x93/0xb0 ? asm_exc_invalid_op+0x1a/0x20 ? __pfx_cmp_name+0x10/0x10 ? __symbol_put+0x93/0xb0 ? __symbol_put+0x62/0xb0 utf8_load+0xf8/0x150 That happens because symbol_put() expects the unique string that identify the symbol, instead of a pointer to the loaded symbol. Fix that by using such string.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
12.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 4

VendorProductVersionRange
linuxlinux_kernel*≥5.17  –  <6.1.120
linuxlinux_kernel*≥6.2  –  <6.6.64
linuxlinux_kernel*≥6.7  –  <6.11.11
linuxlinux_kernel*≥6.12  –  <6.12.2

References 6

  • git.kernel.org https://git.kernel.org/stable/c/156bb2c569cd869583c593d27a5bd69e7b2a4264
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4387cef540f36c2c9297460758cc2438305a24a0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6504dd27123966dc455494cb55217c04ca479121
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/89933f8ab3b4cad5ac14ea56a39947d1ffe7d0e3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c4b6c1781f6cc4e2283120ac8d873864b8056f21
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/156bb2c569cd869583c593d27a5bd69e7b2a4264
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4387cef540f36c2c9297460758cc2438305a24a0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6504dd27123966dc455494cb55217c04ca479121
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/89933f8ab3b4cad5ac14ea56a39947d1ffe7d0e3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c4b6c1781f6cc4e2283120ac8d873864b8056f21
    Patch