What’s Vulnerable › Vulnerabilities

CVE-2017-11747

• Severity: medium (CVSS 5.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-07-30 · updated 2026-06-17
• Weakness: CWE-269

Description

main.c in Tinyproxy 1.8.4 and earlier creates a /run/tinyproxy/tinyproxy.pid file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for tinyproxy.pid modification before a root script executes a "kill `cat /run/tinyproxy/tinyproxy.pid`" command.

Affected products

• tinyproxy: through 1.8.4

References

• https://github.com/tinyproxy/tinyproxy/issues/106
• https://lists.debian.org/debian-lts-announce/2020/03/msg00037.html
• https://github.com/tinyproxy/tinyproxy/issues/106
• https://lists.debian.org/debian-lts-announce/2020/03/msg00037.html

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