CVE-2017-17066: The (1) i2pd before 2.17 and (2) kovri pre-alpha implementations of the I2P routing protocol do not properly h

Q: How do I fix CVE-2017-17066?

kovri: mitigate or apply the listed mitigation; i2pd: upgrade to newer than 2.16.0. Exact commands for each OS are on this page.

Q: Is CVE-2017-17066 being exploited?

CVE-2017-17066 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-2017-17066 affect?

CVE-2017-17066 affects kovri, i2pd. Severity is high (CVSS 7.5). The (1) i2pd before 2.17 and (2) kovri pre-alpha implementations of the I2P routing protocol do not properly handle Garlic DeliveryTypeTunnel packets, which allows remote attackers to obtain sensitive information from process memory via cra

Q: How urgent is CVE-2017-17066?

Priority 52/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEMITIGATEUPGRADE

CVE-2017-17066 is a high-severity flaw (CVSS 7.5) affecting kovri, i2pd. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The (1) i2pd before 2.17 and (2) kovri pre-alpha implementations of the I2P routing protocol do not properly handle Garlic DeliveryTypeTunnel packets, which allows remote attackers to obtain sensitive information from process memory via crafted packets that trigger a buffer over-read, as demonstrated by reading sensitive router memory, aka the GarlicRust bug.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.2% (top 17%)
CISA exploited list	No
Weakness	CWE-125
Published	2017-12-05
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: getkovri · i2pd

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

Am I affected?

Timeline

2017-12-05 09:29 UTCPublished CVE record published
2026-06-17 01:10 UTCUpdated Record last modified

getkovri kovri MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

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

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

i2pd i2pd UPGRADE

Affected: <= 2.16.0

Fixed in: newer than 2.16.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy i2pd || rpm -q i2pd || i2pd --version

2. UPGRADE to newer than 2.16.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade i2pd

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade i2pd

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-2017-17066?

kovri: mitigate or apply the listed mitigation; i2pd: upgrade to newer than 2.16.0. Exact commands for each OS are on this page.

Is CVE-2017-17066 being exploited?

CVE-2017-17066 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-2017-17066 affect?

CVE-2017-17066 affects kovri, i2pd. Severity is high (CVSS 7.5). The (1) i2pd before 2.17 and (2) kovri pre-alpha implementations of the I2P routing protocol do not properly handle Garlic DeliveryTypeTunnel packets, which allows remote attackers to obtain sensitive information from process memory via cra

How urgent is CVE-2017-17066?

Priority 52/100. High severity; Remotely exploitable, no login, no user action

References

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