Memory disclosure via crafted PDF heap overflow
Published Aug 21, 2024 · Updated Oct 24, 2024
Heap buffer overflow in PDFium in Google Chrome before 128.0.6613.84 allows remote attackers to read out-of-bounds memory via a crafted PDF. Public records identify PDFium but do not disclose the affected routine or the bounds-checking error that permits the heap read. Exploitation requires a user to open or render the crafted PDF; the published CNA impact is limited to disclosure of process memory.
Summary
What happened
Heap buffer overflow in PDFium in Google Chrome before 128.0.6613.84 allows remote attackers to read out-of-bounds memory via a crafted PDF. Public records identify PDFium but do not disclose the affected routine or the bounds-checking error that permits the heap read. Exploitation requires a user to open or render the crafted PDF; the published CNA impact is limited to disclosure of process memory.
The record
- CVE
- CVE-2024-7973
- Published
- Aug 21, 2024
- Updated
- Oct 24, 2024
- Vendor
- Google Cloud
- Product
- Google Chrome
- Classifications
- CWE-787, CWE-122, T1204.002
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 21, 2024CVE publishedPublication date reported by the CVE source.
- Oct 24, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <128.0.6613.84
- Affected versionversion=128.0.6613.84 <128.0.6613.84
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
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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