Memory disclosure via out-of-bounds heap read
Published Apr 25, 2022 · Updated Aug 3, 2024
Out-of-bounds read in GIFLIB 5.2.1 allows attackers to disclose process memory through a crafted GIF processed by gif2rgb. DumpScreen2RGB reads one byte 420 bytes beyond a 12-byte heap allocation created by GifMakeMapObject while converting the crafted image. Processing requires user interaction, and the published assessment reports memory disclosure without data modification or service interruption.
Summary
What happened
Out-of-bounds read in GIFLIB 5.2.1 allows attackers to disclose process memory through a crafted GIF processed by gif2rgb. DumpScreen2RGB reads one byte 420 bytes beyond a 12-byte heap allocation created by GifMakeMapObject while converting the crafted image. Processing requires user interaction, and the published assessment reports memory disclosure without data modification or service interruption.
The record
- CVE
- CVE-2022-28506
- Published
- Apr 25, 2022
- Updated
- Aug 3, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-787, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 25, 2022CVE publishedPublication date reported by the CVE source.
- 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?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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.
Public exploit references
- giflib_poc proof of conceptproof of concept · demonstrated
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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