CVE intelligence and bounded remediation

CVE-2011-2910 — The AX.25 daemon (ax25d) in ax25-tools before 0.0.8-13 does not check the return value of a setuid call

High CVSS 7.2

The AX.25 daemon (ax25d) in ax25-tools before 0.0.8-13 does not check the return value of a setuid call. The setuid call is responsible for dropping privileges but if the call fails the daemon would continue to run with root privileges which can allow possible privilege escalation.

Severity
High
CVSS
7.2 (2.0)
Published
2019-11-15
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-269

Affected products

  • linux-ax25 / ax25-tools
  • debian / debian_linux / 8.0
  • debian / debian_linux / 9.0
  • debian / debian_linux / 10.0

Matched remediation archetype

Privilege escalation and unsafe privilege management

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Check exposure

  • Map service accounts, operating-system identities, roles, capabilities, impersonation, set-user transitions, and administrative helper paths.
  • Determine whether untrusted users or lower-privilege processes can reach the affected transition or modify inputs it trusts.
  • Review file, socket, registry, device, job, container, and cloud-role permissions used before and after privilege changes.

Remediate safely

  • Apply the supported fix and redesign privileged operations as a minimal, authenticated, allowlisted interface.
  • Drop privileges before processing untrusted input, verify the drop succeeds, and remove unnecessary roles, capabilities, and write permissions.
  • Validate ownership and permissions at time of use and add explicit lower-to-higher privilege boundary tests.

Authoritative sources

Complete CVE record and remediation plan

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