Information disclosure via ApplyFilter heap overflow
Published May 21, 2021 · Updated Aug 5, 2024
A heap-based buffer overflow in Google libwebp before 1.0.1 allows remote attackers to read memory and interrupt services via crafted WebP input. ApplyFilter processes decoder filter data without sufficient bounds validation, causing an out-of-bounds heap read when a malicious image is decoded. Exploitation requires an application or utility to decode attacker-controlled WebP data; the record describes confidentiality and availability impact without showing integrity compromise.
Summary
What happened
A heap-based buffer overflow in Google libwebp before 1.0.1 allows remote attackers to read memory and interrupt services via crafted WebP input. ApplyFilter processes decoder filter data without sufficient bounds validation, causing an out-of-bounds heap read when a malicious image is decoded. Exploitation requires an application or utility to decode attacker-controlled WebP data; the record describes confidentiality and availability impact without showing integrity compromise.
The record
- CVE
- CVE-2018-25010
- Published
- May 21, 2021
- Updated
- Aug 5, 2024
- Vendor
- Product
- libwebp
- Classifications
- CWE-125
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 21, 2021CVE publishedPublication date reported by the CVE source.
- Aug 5, 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?
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- Affected versionversion=libwebp 1.0.1
What conditions does exploitation require?
What is affected?
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.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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