7.8

CVE-2021-3472

A flaw was found in xorg-x11-server in versions before 1.20.11. An integer underflow can occur in xserver which can lead to a local privilege escalation. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
X.Org ≫ X Server Version < 1.20.11
Fedoraproject ≫ Fedora Version 32
Fedoraproject ≫ Fedora Version 33
Fedoraproject ≫ Fedora Version 34
Debian ≫ Debian Linux Version 9.0
Debian ≫ Debian Linux Version 10.0
Redhat ≫ Enterprise Linux Version 7.0
Redhat ≫ Enterprise Linux Version 8.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.05% 0.598
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NIST 7.2 3.9 10
AV:L/AC:L/Au:N/C:C/I:C/A:C
CWE-191 Integer Underflow (Wrap or Wraparound)

The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.

http://www.openwall.com/lists/oss-security/2021/04/13/1
Patch
Third Party Advisory
Mailing List
https://bugzilla.redhat.com/show_bug.cgi?id=1944167
Patch
Third Party Advisory
Issue Tracking
https://gitlab.freedesktop.org/xorg/xserver/-/commit/7aaf54a1884f71dc363f0b884e57bcb67407a6cd
Patch
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/04/msg00013.html
Third Party Advisory
Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MDF7TAJE7NPZPNVOXSD5HBIFLNPUOD2V/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MO6S5OPXUDYBSRSVWVLFLJ6AFERG4HNY/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N63KL3T22HNFT4FJ7VMVF6U5Q4RFJIQF/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PEXPCLMVU25AUZTUXC4MYBGPKOAIM5TW/
https://lists.x.org/archives/xorg-announce/2021-April/003080.html
Patch
Vendor Advisory
Mailing List
https://seclists.org/oss-sec/2021/q2/20
Patch
Third Party Advisory
Mailing List
https://security.gentoo.org/glsa/202104-02
Third Party Advisory
https://www.debian.org/security/2021/dsa-4893
Third Party Advisory
https://www.tenable.com/plugins/nessus/148701
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-463/
Third Party Advisory
VDB Entry