Home/CVE/Format string vulnerability in stunnel before 3.22 when used in client mode for (1) smtp, (2) pop, or (3) nntp allows re
CVE

CVE-2002-0002

Format string vulnerability in stunnel before 3.22 when used in client mode for (1) smtp, (2) pop, or (3) nntp allows re

Format string vulnerability in stunnel before 3.22 when used in client mode for (1) smtp, (2) pop, or (3) nntp allows remote malicious servers to execute arbitrary code.

HIGH · CVSS 7.5 EPSS 0.15621
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  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 5% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules8 YARA rules0
▤

Affected Products & Versions

4
stunnelall versions
engardelinux secure linuxall versions
mandrakesoft mandrake linuxall versions
redhat linuxall versions
⚠

Public Exploits & PoCs

1
remoteSTunnel 3.x - Client Negotiation Protocol Format Stringverified
◈

Sigma Hunt Rules

8
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productcriticalLinux Reverse Shell Indicator
producthighCommunication To LocaltoNet Tunneling Service Initiated - Linux
producthighPotentially Suspicious Malware Callback Communication - Linux
producthighLinux Crypto Mining Pool Connections
producthighCommunication To Ngrok Tunneling Service - Linux
producthighLinux Crypto Mining Indicators
▣

Scoring & Timeline

7.5
HIGH · CVSS v2 (legacy) · cve@mitre.org
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Published to NVD31 Jan 2002 · 05:00 AM
⚑

Vendor Advisories

1
rhsaRHSA-2002:002
🔗

References & Sources

8
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://marc.info/?l=stunnel-users&m=100869449828705&w=2
http://online.securityfocus.com/archive/1/247427
http://online.securityfocus.com/archive/1/248149
http://stunnel.mirt.net/news.htmlVendor Advisory
http://www.linux-mandrake.com/en/security/2002/MDKSA-2002-004.php3
http://www.redhat.com/support/errata/RHSA-2002-002.htmlPatchVendor Advisory
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