Crash and memory disclosure via malformed WRF values
Published Jun 4, 2021 · Updated Nov 7, 2024
Memory corruption in Cisco Webex Player before 41.5 allows context-dependent attackers to crash it or read process memory via a WRF file. The WRF playback path insufficiently validates values embedded in Webex Recording Format files before using them in memory operations. Exploitation requires a user to open an attacker-supplied local recording, after which the player can crash or expose memory state associated with its process.
Summary
What happened
Memory corruption in Cisco Webex Player before 41.5 allows context-dependent attackers to crash it or read process memory via a WRF file. The WRF playback path insufficiently validates values embedded in Webex Recording Format files before using them in memory operations. Exploitation requires a user to open an attacker-supplied local recording, after which the player can crash or expose memory state associated with its process.
The record
- CVE
- CVE-2021-1527
- Published
- Jun 4, 2021
- Updated
- Nov 7, 2024
- Vendor
- ClamAV
- Product
- Webex Meetings
- Classifications
- CWE-119, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 4, 2021CVE publishedPublication date reported by the CVE source.
- Nov 7, 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=n/a
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What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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