CVE-2021-3472
High
Description
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.
SeverityHigh
CVSS7.8
Exploit probability—
Product
X.org X Server
PublishedApr 26, 2021
First seenApr 26, 2021
Weakness typeCWE-191CWE-191
How to fix
Update
- x.org x_server1.20.11 or later
Vendor advisories
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MO6S5OPXUDYBSRSVWVLFLJ6AFERG4HNY/
- debian.org/security/2021/dsa-4893
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PEXPCLMVU25AUZTUXC4MYBGPKOAIM5TW/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MDF7TAJE7NPZPNVOXSD5HBIFLNPUOD2V/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N63KL3T22HNFT4FJ7VMVF6U5Q4RFJIQF/
- security.gentoo.org/glsa/202104-02
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| x.org x_server | v < 1.20.11 | 1.20.11 |
| fedoraproject fedora | 32, 33, 34 | — |
| debian debian_linux | 9.0, 10.0 | — |
| redhat enterprise_linux | 7.0, 8.0 | — |
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