CVE-2022-46343
High
Description
A vulnerability was found in X.Org. This security flaw occurs because the handler for the ScreenSaverSetAttributes request may write to memory after it has been freed. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions.
SeverityHigh
CVSS8.8
Exploit probability—
Product
X.org X Server
PublishedDec 14, 2022
First seenDec 14, 2022
Weakness typeCWE-416Use after free
How to fix
Vendor advisories
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DXDF2O5PPLE3SVAJJYUOSAD5QZ4TWQ2G/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5NELB7YDWRABYYBG4UPTHRBDTKJRV5M2/
- debian.org/security/2022/dsa-5304
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z67QC4C3I2FI2WRFIUPEHKC36J362MLA/
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| x.org x_server | 1.20.4 | — |
| fedoraproject fedora | 36, 37 | — |
| debian debian_linux | 11.0 | — |
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