Fedora 29 update for etcd



| Updated: 2025-04-24
Risk Low
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2018-16886
CVE-2018-1098
CVE-2018-1099
CWE-ID CWE-287
CWE-352
CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Fedora
Operating systems & Components / Operating system

etcd
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Improper Authentication

EUVDB-ID: #VU64828

Risk: Low

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-16886

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote user to bypass authentication process.

The vulnerability exists due to an improper authentication issue when role-based access control (RBAC) is used and client-cert-auth is enabled. A remote user can authenticate as user with any valid (trusted) client certificate in a REST API request to the gRPC-gateway.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 29

etcd: before 3.3.12-4.20190413gitf29b1ad.fc29

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2019-219b0b0b6a


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Cross-site request forgery

EUVDB-ID: #VU11632

Risk: Low

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-1098

CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)

Exploit availability: No

Description

The vulnerability allows a remote unauthenticated attacker to conduct cross-site request forgery attack and gain elevated privileges on the target system.

The weakness exists due to improper validation of HTTP POST requests. A remote attacker can trick the victim into visiting a specially crafted website and gain privileges of the target user.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 29

etcd: before 3.3.12-4.20190413gitf29b1ad.fc29

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2019-219b0b0b6a


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Improper input validation

EUVDB-ID: #VU11633

Risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-1099

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote unauthenticated attacker to bypass security restrictions on the target system.

The weakness exists due to improper validation of DNS hostnames. A remote attacker can send specially crafted requests, bypass security restrictions and gain network access to internal systems.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 29

etcd: before 3.3.12-4.20190413gitf29b1ad.fc29

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2019-219b0b0b6a


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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