What’s Vulnerable › Vulnerabilities

CVE-2021-46671

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-02-04 · updated 2026-06-17
• Weakness: CWE-125

Description

options.c in atftp before 0.7.5 reads past the end of an array, and consequently discloses server-side /etc/group data to a remote client.

Affected products

• Atftp Project Atftp: before 0.7.5 — fixed in 0.7.5
• Debian Linux: 9.0, 10.0, 11.0

How to fix

Upgrade to a fixed version: Atftp Project Atftp 0.7.5. Check the vendor advisory for mitigations.

References

• https://bugs.debian.org/1004974
• https://lists.debian.org/debian-lts-announce/2022/05/msg00040.html
• https://sourceforge.net/p/atftp/code/ci/9cf799c40738722001552618518279e9f0ef62e5
• https://bugs.debian.org/1004974
• https://lists.debian.org/debian-lts-announce/2022/05/msg00040.html
• https://sourceforge.net/p/atftp/code/ci/9cf799c40738722001552618518279e9f0ef62e5

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