CVE-2006-3251
Heap-based buffer overflow in the array_push function in hashcash.c for Hashcash before 1.21 might allow attackers to execute arbitrary code via crafted entries.
02 Description
Heap-based buffer overflow in the array_push function in hashcash.c for Hashcash before 1.21 might allow attackers to execute arbitrary code via crafted entries.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 3.65% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 89.1% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2006-06-27 18:00Z20 YR AGO
- Last updated
- 2024-08-07 18:23Z2 YR AGO
- Reserved
- 2006-06-27
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
- Data version
- 5.1
- Document digest
- 233537261dc23a82a696735c022c5b602632e9bd58e300e5f6a271dc3b90a382
05 Affected products
06 References
- www.vupen.comADV-2006-2551http://www.vupen.com/english/advisories/2006/2551
- exchange.xforce.ibmcloud.comhashcash-arraypush-bo(27422)https://exchange.xforce.ibmcloud.com/vulnerabilities/27422
- secunia.com20800http://secunia.com/advisories/20800
- secunia.com21146http://secunia.com/advisories/21146
- www.gentoo.orgGLSA-200606-25http://www.gentoo.org/security/en/glsa/glsa-200606-25.xml
- www.debian.orgDSA-1114http://www.debian.org/security/2006/dsa-1114
- secunia.com20846http://secunia.com/advisories/20846
- www.hashcash.orghttp://www.hashcash.org/source/CHANGELOG
- www.securityfocus.com18659http://www.securityfocus.com/bid/18659
07 Fixed in
Debian 12
- hashcash Fixed in 1.21
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- hashcash Fixed in 1.21
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- hashcash Fixed in 1.21
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.