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Alpine Linux: CVE-2018-9127: Improper Certificate Validation

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Alpine Linux: CVE-2018-9127: Improper Certificate Validation

Severity
7
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
04/02/2018
Created
08/23/2024
Added
08/22/2024
Modified
10/01/2024

Description

Botan 2.2.0 - 2.4.0 (fixed in 2.5.0) improperly handled wildcard certificates and could accept certain certificates as valid for hostnames when, under RFC 6125 rules, they should not match. This only affects certificates issued to the same domain as the host, so to impersonate a host one must already have a wildcard certificate matching other hosts in the same domain. For example, b*.example.com would match some hostnames that do not begin with a 'b' character.

Solution(s)

  • alpine-linux-upgrade-botan

References

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