Kernel: information disclosure in vhost/vhost.c:vhost_new_msg()

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• linux linux kernelbefore 6.4
• linux linux kernel6.4

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

• git.kernel.org/pub/scm/linux/kernel kernel

  • before 6.4-rc6affected · semver

• Red Hat Red Hat Enterprise Linux 6

  • all versionsaffected

• Red Hat Red Hat Enterprise Linux 7

  • all versionsaffected
  • all versionsaffected

• Red Hat Red Hat Enterprise Linux 8

  • 0:4.18.0-553.5.1.rt7.346.el8_10 and laternot affected · rpm
  • 0:4.18.0-553.5.1.el8_10 and laternot affected · rpm

• Red Hat Red Hat Enterprise Linux 9

  • 0:5.14.0-503.11.1.el9_5 and laternot affected · rpm
  • 0:5.14.0-503.11.1.el9_5 and laternot affected · rpm
  • all versionsaffected

• Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support

  • 0:5.14.0-427.68.1.el9_4 and laternot affected · rpm

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Other highest-scoring records for the same primary product.

• CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
  89Now
• CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
  85Now
• CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
  83Now
• CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV
  77This week
• CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV
  77This week
• CVE-2013-2094The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows loKEV
  77This week

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

The extension requests broader permissions than its function needs and sends the data it collects out for purposes beyond its stated function.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1{2  "permissions": ["tabs", "<all_urls>"],3  "background": { "service_worker": "analytics.js" }4}

1{2  "permissions": ["activeTab"],3  "host_permissions": ["https://yildiz.example/*"]4}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.