Root code execution via make42charstring overflow
Published Feb 28, 2024 · Updated Aug 23, 2024
Stack-based buffer overflow in Lexmark printer PostScript interpreters allows remote attackers to execute arbitrary code via crafted jobs. The make42charstring method copies user-supplied data into a fixed-length stack buffer without first validating its length. Authentication is not required, but network-adjacent access is needed; successful exploitation runs code as root.
Summary
What happened
Stack-based buffer overflow in Lexmark printer PostScript interpreters allows remote attackers to execute arbitrary code via crafted jobs. The make42charstring method copies user-supplied data into a fixed-length stack buffer without first validating its length. Authentication is not required, but network-adjacent access is needed; successful exploitation runs code as root.
The record
- CVE
- CVE-2023-50734
- Published
- Feb 28, 2024
- Updated
- Aug 23, 2024
- Vendor
- Lexmark
- Product
- Lexmark MX410
- Classifications
- CWE-121, T1203
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 28, 2024CVE publishedPublication date reported by the CVE source.
- Aug 23, 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 <=lw90.sb4.p205
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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