CVE-2022-49870

HIGH EPSS 8.1%
Published May 1, 20251y ago · Modified Jun 17, 20261w ago
7.1 CVSS 3.1
High
Find Similar
Published May 1, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: capabilities: fix undefined behavior in bit shift for CAP_TO_MASK Shifting signed 32-bit value by 31 bits is undefined, so changing significant bit to unsigned. The UBSAN warning calltrace like below: UBSAN: shift-out-of-bounds in security/commoncap.c:1252:2 left shift of 1 by 31 places cannot be represented in type 'int' Call Trace: <TASK> dump_stack_lvl+0x7d/0xa5 dump_stack+0x15/0x1b ubsan_epilogue+0xe/0x4e __ubsan_handle_shift_out_of_bounds+0x1e7/0x20c cap_task_prctl+0x561/0x6f0 security_task_prctl+0x5a/0xb0 __x64_sys_prctl+0x61/0x8f0 do_syscall_64+0x58/0x80 entry_SYSCALL_64_after_hwframe+0x63/0xcd </TASK>

CVSS Details

Base Score
7.1
Exploitability
1.8
Impact
5.2
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
8.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-125 Out-of-bounds Read Memory Safety

Affected Products 11

VendorProductVersionRange
linuxlinux_kernel*≥2.6.25  –  <4.9.334
linuxlinux_kernel*≥4.10  –  <4.14.300
linuxlinux_kernel*≥4.15  –  <4.19.267
linuxlinux_kernel*≥4.20  –  <5.4.225
linuxlinux_kernel*≥5.5  –  <5.10.155
linuxlinux_kernel*≥5.11  –  <5.15.79
linuxlinux_kernel*≥5.16  –  <6.0.9
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any

References 8

  • git.kernel.org https://git.kernel.org/stable/c/151dc8087b5609e53b069c068e3f3ee100efa586
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/27bdb134c043ff32c459d98f16550d0ffa0b3c34
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/46653972e3ea64f79e7f8ae3aa41a4d3fdb70a13
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5661f111a1616ac105ec8cec81bff99b60f847ac
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5b79fa628e2ab789e629a83cd211ef9b4c1a593e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/65b0bc7a0690861812ade523d19f82688ab819dc
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/dbaab08c8677d598244d21afb7818e44e1c5d826
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fcbd2b336834bd24e1d9454ad5737856470c10d7
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/151dc8087b5609e53b069c068e3f3ee100efa586
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/27bdb134c043ff32c459d98f16550d0ffa0b3c34
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/46653972e3ea64f79e7f8ae3aa41a4d3fdb70a13
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5661f111a1616ac105ec8cec81bff99b60f847ac
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5b79fa628e2ab789e629a83cd211ef9b4c1a593e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/65b0bc7a0690861812ade523d19f82688ab819dc
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/dbaab08c8677d598244d21afb7818e44e1c5d826
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fcbd2b336834bd24e1d9454ad5737856470c10d7
    Patch