CVE-2023-32665 Gvariant deserialisation does not match spec for non-normal data

2023-09-1419:03:58

CWE-400

redhat

github.com

cve-2023-32665

gvariant

deserialization

glib

exponential blowup

denial of service

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

AI Score

6.4

Confidence

High

SSVC

Exploitation

poc

Automatable

Technical Impact

partial

JSON

A flaw was found in GLib. GVariant deserialization is vulnerable to an exponential blowup issue where a crafted GVariant can cause excessive processing, leading to denial of service.

CNA Affected

[
  {
    "vendor": "n/a",
    "product": "glib2",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:6"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 6",
    "packageName": "glib2",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "unknown"
  },
  {
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:7"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 7",
    "packageName": "glib2",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "unknown"
  },
  {
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:8"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 8",
    "packageName": "glib2",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 9",
    "packageName": "glib2",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "vendor": "Fedora",
    "product": "Fedora 38",
    "packageName": "glib2",
    "collectionURL": "https://packages.fedoraproject.org/",
    "defaultStatus": "affected"
  },
  {
    "vendor": "Fedora",
    "product": "Extra Packages for Enterprise Linux",
    "packageName": "glib",
    "collectionURL": "https://packages.fedoraproject.org/",
    "defaultStatus": "affected"
  },
  {
    "vendor": "Fedora",
    "product": "Fedora",
    "packageName": "glib2",
    "collectionURL": "https://packages.fedoraproject.org/",
    "defaultStatus": "affected"
  },
  {
    "vendor": "Fedora",
    "product": "Fedora 37",
    "packageName": "glib2",
    "collectionURL": "https://packages.fedoraproject.org/",
    "defaultStatus": "affected"
  },
  {
    "vendor": "Fedora",
    "product": "Fedora 38",
    "packageName": "mingw-glib2",
    "collectionURL": "https://packages.fedoraproject.org/",
    "defaultStatus": "affected"
  },
  {
    "vendor": "Fedora",
    "product": "Fedora 37",
    "packageName": "mingw-glib2",
    "collectionURL": "https://packages.fedoraproject.org/",
    "defaultStatus": "affected"
  }
]