Executive Summary



This vulnerability is currently undergoing analysis and not all information is available. Please check back soon to view the completed vulnerability summary
Informations
Name CVE-2022-49870 First vendor Publication 2025-05-01
Vendor Cve Last vendor Modification 2025-05-01

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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:

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

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-49870

Sources (Detail)

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

Alert History

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0
Date Informations
2025-05-27 02:12:33
  • First insertion