CVE-2022-34568Network attack vector

Application disruption via freed X11 image dereference

Published Jul 28, 2022 · Updated Aug 3, 2024

Use-after-free in SDL 1.2 allows remote attackers to disrupt linked applications via an X11 YUV overlay with a mismatched image pitch. X11_CreateYUVOverlay frees hwdata->image before reading its pitches[0] value to recalculate the overlay width, thereby dereferencing freed memory. The path exists only when PITCH_WORKAROUND is enabled and the image pitch differs from width times bytes per pixel; published records do not distinguish a crash from other availability loss.

CVSS severity7.5
High
EPSS probability1.06%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in SDL 1.2 allows remote attackers to disrupt linked applications via an X11 YUV overlay with a mismatched image pitch. X11_CreateYUVOverlay frees hwdata->image before reading its pitches[0] value to recalculate the overlay width, thereby dereferencing freed memory. The path exists only when PITCH_WORKAROUND is enabled and the image pitch differs from width times bytes per pixel; published records do not distinguish a crash from other availability loss.

The record

CVE
CVE-2022-34568
Published
Jul 28, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-416
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 28, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
2.9SUSECVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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