The glob implementation in Pure-FTPd before 1.0.32, and in libc in NetBSD 5.1, does not properly expand expressions containing curly bracket
The glob implementation in Pure-FTPd before 1.0.32, and in libc in NetBSD 5.1, does not properly expand expressions containing curly brackets, which allows remote authenticated users to cause a denial of service (memory consumption) via a crafted FTP STAT command.
- Published
- May 24, 2011
- Updated
- Jun 16, 2026
- EPSS
- 7.3% · 94th percentile
- CWE
- CWE-20
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Report tools
Action score
18
Monitor
Low priority for now.
- CVSS
- 16 / 40 · 4.0 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 2 / 30 · 7.3%
Affected systems
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- netbsd netbsd5.1
- pureftpd pure-ftpdup to 1.0.31 inclusive
- pureftpd pure-ftpd0.90
- pureftpd pure-ftpd0.91
- pureftpd pure-ftpd0.92
- pureftpd pure-ftpd0.93
- pureftpd pure-ftpd0.94
- pureftpd pure-ftpd0.95
- pureftpd pure-ftpd0.95-pre1
- pureftpd pure-ftpd0.95-pre2
- pureftpd pure-ftpd0.95-pre3
- pureftpd pure-ftpd0.95-pre4
- pureftpd pure-ftpd0.95.1
- pureftpd pure-ftpd0.95.2
- pureftpd pure-ftpd0.96
- pureftpd pure-ftpd0.96.1
- pureftpd pure-ftpd0.96pre1
- pureftpd pure-ftpd0.97-final
- pureftpd pure-ftpd0.97.1
- pureftpd pure-ftpd0.97.2
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | pure-ftpd | before 1.0.32-1 | 1.0.32-1 |
| openSUSE:Tumbleweed | pure-ftpd | before 1.0.43-1.3 | 1.0.43-1.3 |
Same product
netbsd: all recordsOther highest-scoring records for the same primary product.
- CVE-2014-8517The fetch_url function in usr.bin/ftp/fetch.c in tnftp, as used in NetBSD 5.1 through 5.1.4, 5.2 through 5.2.2, 6.0 through 6.0.6, and 6.1 t51Plan
- CVE-2017-1000375NetBSD maps the run-time link-editor ld.so directly below the stack region, even if ASLR is enabled, this allows attackers to more easily ma45Plan
- CVE-2017-1000378The NetBSD qsort() function is recursive, and not randomized, an attacker can construct a pathological input array of N elements that causes40Plan
- CVE-2017-1000374A flaw exists in NetBSD's implementation of the stack guard page that allows attackers to bypass it resulting in arbitrary code execution us40Plan
- CVE-2015-8212CGI handling flaw in bozohttpd in NetBSD 6.0 through 6.0.6, 6.1 through 6.1.5, and 7.0 allows remote attackers to execute arbitrary code via40Plan
- CVE-2008-3584NetBSD 3.0, 3.1, and 4.0, when a pppoe instance exists, does not properly check the length of a PPPoE packet tag, which allows remote attack38Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:pure-ftpd | 1.0.32-1 · Debian:12 | Package registry (OSV) |
| opensuse:pure-ftpd | 1.0.43-1.3 · openSUSE:Tumbleweed | Package registry (OSV) |
Exploit status
Proof of concept available
A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.
Evidence
- Exploit-DB entry ×1
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Exploit-DB entry | dos | 2013-02-05 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- Published
- First PoC+622 d
- TodaySep 30, 2026+5608 d
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- P · the service can be disrupted
- Attack complexity
- Low
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- P
Weakness class (CWE)
CWE-20 · Improper Input ValidationCVSS vector
AV:N/AC:L/Au:S/C:N/I:N/A:P
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Server Side Include (SSI) InjectionCAPEC-101likelihood: High · High
- Cross Zone ScriptingCAPEC-104likelihood: Medium · High
- Command Line Execution through SQL InjectionCAPEC-108likelihood: Low · Very High
- Object Relational Mapping InjectionCAPEC-109likelihood: Low · High
- SQL Injection through SOAP Parameter TamperingCAPEC-110likelihood: High · Very High
- Double EncodingCAPEC-120likelihood: Low · Medium
- Subverting Environment Variable ValuesCAPEC-13likelihood: High · Very High
ATT&CK techniques
- Obfuscated Files or InformationT1027
- Masquerading: Invalid Code SignatureT1036.001
- Steal Web Session CookieT1539
- Subvert Trust Controls: Code SigningT1553.002
- Impair Defenses:Impair Command History LoggingT1562.003
- Hijack Execution Flow:Dynamic Linker HijackingT1574.006
- Hijack Execution Flow:Path Interception by PATH Environment VariableT1574.007
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
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References
- cvsweb.netbsd.org/bsdweb.cgi/src/lib/libc/gen/glob.c#rev1.28
- cvsweb.netbsd.org/bsdweb.cgi/src/lib/libc/gen/glob.c.diff?r1=1.27&r2=1.28&f=h
- securityreason.com/securityalert/8228
- www.mandriva.com/security/advisories?name=MDVSA-2011:094
- www.pureftpd.org/project/pure-ftpd/news
- www.vupen.com/english/advisories/2011/1273
- bugzilla.redhat.com/show_bug.cgi?id=704283
Vendor advisories and official records. Exploit/PoC links are deliberately left out.