Home/CVE/The vsf_filename_passes_filter function in ls.c in vsftpd before 2.3.3 allows remote authenticated users to cause a deni
CVE

CVE-2011-0762

The vsf_filename_passes_filter function in ls.c in vsftpd before 2.3.3 allows remote authenticated users to cause a deni

The vsf_filename_passes_filter function in ls.c in vsftpd before 2.3.3 allows remote authenticated users to cause a denial of service (CPU consumption and process slot exhaustion) via crafted glob expressions in STAT commands in multiple FTP sessions, a different vulnerability than CVE-2010-2632.

MEDIUM · CVSS 4 EPSS 0.45278
Schedule remediation
  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 2% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-400Uncontrolled Resource Consumption
▤

Affected Products & Versions

6
vsftpd project vsftpd< 2.3.3
canonical ubuntu linuxall versions
fedoraproject fedoraall versions
debian linuxall versions
opensuseall versions
suse linux enterprise serverall versions
⚠

Public Exploits & PoCs

6
dosvsftpd 2.3.2 - Denial of Serviceverified
nucleivsftpd < 2.3.3 - DoSmedium
pocsecurityreason.com · achievement_securityalert/95securityreason.com
pocsecurityreason.com · 8109securityreason.com
pocwww.exploit-db.com · 16270www.exploit-db.com
pocwww.securityfocus.com · 46617www.securityfocus.com
◈

Detection Rules (IDS/IPS)

1
snort-communityPROTOCOL-FTP STAT overflow attemptattempted-admin
Open rulesets (ET Open, Snort Community, abuse.ch) link to source. Commercial rulesets are reference-only.
◈

Sigma Hunt Rules

1
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.
productmediumSuspicious VSFTPD Error Messages
▣

Scoring & Timeline

4
MEDIUM · CVSS v2 (legacy) · cret@cert.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:S/C:N/I:N/A:P
Published to NVD02 Mar 2011 · 08:00 PM
⚑

Vendor Advisories

2
usnUSN-1098-1
rhsaRHSA-2011:0337Important
🔗

References & Sources

21
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
ftp://vsftpd.beasts.org/users/cevans/untar/vsftpd-2.3.4/ChangelogBroken Link
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=622741Issue TrackingThird Party Advisory
http://cxib.net/stuff/vspoc232.cBroken Link
http://jvn.jp/en/jp/JVN37417423/index.htmlThird Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055881.htmlThird Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055882.htmlThird Party Advisory
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