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CVE-2021-3899

There is a race condition in the 'replaced executable' detection that, with the correct local configuration, allow an attacker to execute ar

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 2.21.0
1 proof of concept on GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

There is a race condition in the 'replaced executable' detection that, with the correct local configuration, allow an attacker to execute arbitrary code as root.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • apport

    fixed in 2.21.0

References 4

bugs.launchpad.net

ubuntu.com

cve.org

GitHub · liumuqing/CVE-2021-3899_PoC