CVE-2017-20180: A vulnerability classified as critical has been found in Zerocoin libzerocoin

Q: How do I fix CVE-2017-20180?

libzerocoin: upgrade to 2017-11-15. Exact commands for each OS are on this page.

Q: Is CVE-2017-20180 being exploited?

CVE-2017-20180 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2017-20180 affect?

CVE-2017-20180 affects libzerocoin. Severity is medium (CVSS 4.6). A vulnerability classified as critical has been found in Zerocoin libzerocoin. Affected is the function CoinSpend::CoinSpend of the file CoinSpend.cpp of the component Proof Handler. The manipulation leads to insufficient verification of da

Q: How urgent is CVE-2017-20180?

Priority 22/100. No elevated risk signals yet.

Routine

MEDIUM 4.6UPGRADE

CVE-2017-20180 is a medium-severity flaw (CVSS 4.6) affecting libzerocoin. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability classified as critical has been found in Zerocoin libzerocoin. Affected is the function CoinSpend::CoinSpend of the file CoinSpend.cpp of the component Proof Handler. The manipulation leads to insufficient verification of data authenticity. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available. The patch is identified as ce103a09ec079d0a0ed95

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.6 (Medium)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 77%)
CISA exploited list	No
Weakness	CWE-345
Published	2023-03-06
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: zerocoin

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-03-06 11:15 UTCPublished CVE record published
2026-06-17 01:15 UTCUpdated Record last modified

zerocoin libzerocoin UPGRADE

Affected: < 2017-11-15

Fixed in: 2017-11-15

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy libzerocoin || rpm -q libzerocoin || libzerocoin --version

2. UPGRADE to 2017-11-15 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade libzerocoin

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade libzerocoin

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2017-20180?

libzerocoin: upgrade to 2017-11-15. Exact commands for each OS are on this page.

Is CVE-2017-20180 being exploited?

CVE-2017-20180 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2017-20180 affect?

CVE-2017-20180 affects libzerocoin. Severity is medium (CVSS 4.6). A vulnerability classified as critical has been found in Zerocoin libzerocoin. Affected is the function CoinSpend::CoinSpend of the file CoinSpend.cpp of the component Proof Handler. The manipulation leads to insufficient verification of da

How urgent is CVE-2017-20180?

Priority 22/100. No elevated risk signals yet.

References

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