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No exploitation reportedFix available

CVE-2017-11747

No exploitation reported by the sources we read.

  • Published2017-07-30
  • WeaknessCWE-269

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2017-07-3016:29CVE publishedNVD

Versions per branch

NVD
Tinyproxy project tinyproxy
BranchAffectedFixed in
1.8≤ 1.8.4no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • tinyproxyUbuntu:Pro:18.04:LTSall versions · fixed in 1.8.4-5ubuntu0.1~esm1
  • tinyproxyUbuntu:Pro:16.04:LTSall versions · fixed in 1.8.3-3ubuntu16.04.1~esm1
  • tinyproxyUbuntu:Pro:14.04:LTSall versions · fixed in 1.8.3-3ubuntu14.04.1~esm1
  • tinyproxySUSE:Package Hub 15 SP5all versions · fixed in 1.11.2-bp155.3.3.1
  • tinyproxyopenSUSE:Tumbleweedall versions · fixed in 1.11.0-1.3
  • tinyproxyopenSUSE:Leap 15.5all versions · fixed in 1.11.2-bp155.3.3.1
  • tinyproxyDebian:14all versions · fixed in 1.10.0-1
  • tinyproxyDebian:13all versions · fixed in 1.10.0-1

2 more package ranges on OSV.dev

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Published
2017-07-30
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-r3gc-6285-7fj7

Frequently asked questions

What is CVE-2017-11747?

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.

Is CVE-2017-11747 actively exploited?

Active exploitation of CVE-2017-11747 has not been confirmed. Its EPSS score was 0.3% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-11747?

CVE-2017-11747 has a CVSS v3 base score of 5.5 (MEDIUM severity), with vector string CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

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