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CVE-2012-3505: Tinyproxy 1.8.3 and earlier allows remote attackers to cause a denial of service (CPU and memory consumption)

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MEDIUM 5.0UPGRADE

CVE-2012-3505 is a medium-severity flaw (CVSS 5.0) affecting tinyproxy. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Tinyproxy 1.8.3 and earlier allows remote attackers to cause a denial of service (CPU and memory consumption) via (1) a large number of headers or (2) a large number of forged headers that trigger hash collisions predictably. bucket.

Why this priority

  • EPSS top 6%: very likely to be exploited

A fixed release or distro patch exists.

Risk facts

CVSS score5.0 (Medium)
EPSS exploit chance7.3% (top 6%)
CISA exploited listNo
WeaknessCWE-310
Published2012-10-09
Last modified2026-06-16
Publisher (CNA): Red Hat, Inc. · Vendor: banu

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Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

banu tinyproxy UPGRADE
Affected: <= 1.8.3 · 1.5.0 · 1.5.0 pre1 · 1.5.0 pre2 · 1.5.0 pre3 · 1.5.0 pre4 · 1.5.0 pre5 · 1.5.0 pre6
Fixed in: newer than 1.8.3
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy tinyproxy || rpm -q tinyproxy || tinyproxy --version
2. UPGRADE to newer than 1.8.3 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade tinyproxy
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade tinyproxy
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2012-3505?

tinyproxy: upgrade to newer than 1.8.3. Exact commands for each OS are on this page.

Is CVE-2012-3505 being exploited?

CVE-2012-3505 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2012-3505 affect?

CVE-2012-3505 affects tinyproxy. Severity is medium (CVSS 5.0). Tinyproxy 1.8.3 and earlier allows remote attackers to cause a denial of service (CPU and memory consumption) via (1) a large number of headers or (2) a large number of forged headers that trigger hash collisions predictably. bucket.

How urgent is CVE-2012-3505?

Priority 41/100. EPSS top 6%: very likely to be exploited

Related CVEs

References

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