CVE-2022-35085Public exploit

Memory exhaustion via unreleased GIF allocations

Published Sep 20, 2022 · Updated May 27, 2025

Memory leak in SWFTools gif2swf commit 772e55a2 allows context-dependent attackers to exhaust memory via a crafted GIF file. The conversion path retains allocations made by rfx_calloc in lib/mem.c and rfx_alloc in swf_ShapeAddBitmapFillStyle instead of releasing them. Exploitation requires a user to run gif2swf on the crafted file; repeated retained allocations exhaust available memory and interrupt conversion.

CVSS severity5.5
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory leak in SWFTools gif2swf commit 772e55a2 allows context-dependent attackers to exhaust memory via a crafted GIF file. The conversion path retains allocations made by rfx_calloc in lib/mem.c and rfx_alloc in swf_ShapeAddBitmapFillStyle instead of releasing them. Exploitation requires a user to run gif2swf on the crafted file; repeated retained allocations exhaust available memory and interrupt conversion.

The record

CVE
CVE-2022-35085
Published
Sep 20, 2022
Updated
May 27, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-401, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 20, 2022CVE publishedPublication date reported by the CVE source.
  2. May 27, 2025Record 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 vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

CWE-401Missing Release of Memory after Effective Lifetime
T1204.002Malicious File

Public exploit references

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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