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6 vulnerabilities by z.cash
CVE-2019-16930 (GCVE-0-2019-16930)
Vulnerability from cvelistv5 – Published: 2019-09-28 21:07 – Updated: 2024-08-05 01:24
VLAI
EPSS
VEX
Summary
Zcashd in Zcash before 2.0.7-3 allows discovery of the IP address of a full node that owns a shielded address, related to mishandling of exceptions during deserialization of note plaintexts. This affects anyone who has disclosed their zaddr to a third party.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://z.cash/support/security/announcements/sec… | x_refsource_MISC |
| https://github.com/zcash/zcash/commit/c1fbf8ab5d7… | x_refsource_MISC |
| https://github.com/zcash/zcash/releases/tag/v2.0.7-3 | x_refsource_MISC |
| http://duke.leto.net/2019/10/01/zcash-metadata-le… | x_refsource_MISC |
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CVE-2019-11636 (GCVE-0-2019-11636)
Vulnerability from cvelistv5 – Published: 2019-05-01 16:21 – Updated: 2024-08-04 22:55
VLAI
EPSS
VEX
Summary
Zcash 2.x allows an inexpensive approach to "fill all transactions of all blocks" and "prevent any real transaction from occurring" via a "Sapling Wood-Chipper" attack.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/zcash/zcash/issues/3955 | x_refsource_MISC |
| https://twitter.com/dukeleto/status/1120467430118232066 | x_refsource_MISC |
| https://saplingwoodchipper.github.io | x_refsource_MISC |
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CVE-2019-7167 (GCVE-0-2019-7167)
Vulnerability from cvelistv5 – Published: 2019-03-27 01:37 – Updated: 2024-08-04 20:38
VLAI
EPSS
VEX
Summary
Zcash, before the Sapling network upgrade (2018-10-28), had a counterfeiting vulnerability. A key-generation process, during evaluation of polynomials related to a to-be-proven statement, produced certain bypass elements. Availability of these elements allowed a cheating prover to bypass a consistency check, and consequently transform the proof of one statement into an ostensibly valid proof of a different statement, thereby breaking the soundness of the proof system. This misled the original Sprout zk-SNARK verifier into accepting the correctness of a transaction.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
3 references
| URL | Tags |
|---|---|
| http://fortune.com/2019/02/05/zcash-vulnerability… | x_refsource_MISC |
| https://z.cash/blog/zcash-counterfeiting-vulnerab… | x_refsource_MISC |
| https://github.com/JinBean/CVE-Extension | x_refsource_MISC |
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CVE-2019-16930 (GCVE-0-2019-16930)
Vulnerability from nvd – Published: 2019-09-28 21:07 – Updated: 2024-08-05 01:24
VLAI
EPSS
VEX
Summary
Zcashd in Zcash before 2.0.7-3 allows discovery of the IP address of a full node that owns a shielded address, related to mishandling of exceptions during deserialization of note plaintexts. This affects anyone who has disclosed their zaddr to a third party.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://z.cash/support/security/announcements/sec… | x_refsource_MISC |
| https://github.com/zcash/zcash/commit/c1fbf8ab5d7… | x_refsource_MISC |
| https://github.com/zcash/zcash/releases/tag/v2.0.7-3 | x_refsource_MISC |
| http://duke.leto.net/2019/10/01/zcash-metadata-le… | x_refsource_MISC |
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CVE-2019-11636 (GCVE-0-2019-11636)
Vulnerability from nvd – Published: 2019-05-01 16:21 – Updated: 2024-08-04 22:55
VLAI
EPSS
VEX
Summary
Zcash 2.x allows an inexpensive approach to "fill all transactions of all blocks" and "prevent any real transaction from occurring" via a "Sapling Wood-Chipper" attack.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/zcash/zcash/issues/3955 | x_refsource_MISC |
| https://twitter.com/dukeleto/status/1120467430118232066 | x_refsource_MISC |
| https://saplingwoodchipper.github.io | x_refsource_MISC |
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CVE-2019-7167 (GCVE-0-2019-7167)
Vulnerability from nvd – Published: 2019-03-27 01:37 – Updated: 2024-08-04 20:38
VLAI
EPSS
VEX
Summary
Zcash, before the Sapling network upgrade (2018-10-28), had a counterfeiting vulnerability. A key-generation process, during evaluation of polynomials related to a to-be-proven statement, produced certain bypass elements. Availability of these elements allowed a cheating prover to bypass a consistency check, and consequently transform the proof of one statement into an ostensibly valid proof of a different statement, thereby breaking the soundness of the proof system. This misled the original Sprout zk-SNARK verifier into accepting the correctness of a transaction.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
3 references
| URL | Tags |
|---|---|
| http://fortune.com/2019/02/05/zcash-vulnerability… | x_refsource_MISC |
| https://z.cash/blog/zcash-counterfeiting-vulnerab… | x_refsource_MISC |
| https://github.com/JinBean/CVE-Extension | x_refsource_MISC |
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