Heap-data disclosure via malformed JavaScript error object
Published May 18, 2020 · Updated Aug 4, 2024
Information disclosure in Nitro Pro 13.9.1.155 and earlier allows remote attackers to read stale heap data via a crafted PDF. Nitro's SpiderMonkey error reporter passes a JSErrorReport containing uninitialized or freed pointers to a formatting path that reads them into a JavaScript error object. Exploitation requires a user to open the file; the resulting heap-layout disclosure can assist bypasses of exploit mitigations.
Summary
What happened
Information disclosure in Nitro Pro 13.9.1.155 and earlier allows remote attackers to read stale heap data via a crafted PDF. Nitro's SpiderMonkey error reporter passes a JSErrorReport containing uninitialized or freed pointers to a formatting path that reads them into a JavaScript error object. Exploitation requires a user to open the file; the resulting heap-layout disclosure can assist bypasses of exploit mitigations.
The record
- CVE
- CVE-2020-6093
- Published
- May 18, 2020
- Updated
- Aug 4, 2024
- Vendor
- Nitro Software, Inc.
- Product
- Nitro Pro
- Classifications
- CWE-824, T1204.002
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 18, 2020CVE publishedPublication date reported by the CVE source.
- Aug 4, 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=Nitro Pro 13.9.1.155
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
- TALOS-2020-1014 malformed PDF triggerproof 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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