Amazon Linux 2023 Security Advisory: ALAS2023-2025-1336
Advisory Released Date: 2026-01-07
Advisory Updated Date: 2026-01-07
FAQs regarding Amazon Linux ALAS/CVE Severity
SSH Agent servers do not validate the size of messages when processing new identity requests, which may cause the program to panic if the message is malformed due to an out of bounds read. (CVE-2025-47914)
SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, allowing an attacker to cause unbounded memory consumption. (CVE-2025-58181)
crypto/x509: excluded subdomain constraint does not restrict wildcard SANs
An excluded subdomain constraint in a certificate chain does not restrict the usage of wildcard SANs in the leaf certificate. For example a constraint that excludes the subdomain test.example.com does not prevent a leaf certificate from claiming the SAN *.example.com. (CVE-2025-61727)
Within HostnameError.Error(), when constructing an error string, there is no limit to the number of hosts that will be printed out. Furthermore, the error string is constructed by repeated string concatenation, leading to quadratic runtime. Therefore, a certificate provided by a malicious actor can result in excessive resource consumption. (CVE-2025-61729)
Fulcio is a free-to-use certificate authority for issuing code signing certificates for an OpenID Connect (OIDC) identity. Prior to 1.8.3, function identity.extractIssuerURL splits (via a call to strings.Split) its argument (which is untrusted data) on periods. As a result, in the face of a malicious request with an (invalid) OIDC identity token in the payload containing many period characters, a call to extractIssuerURL incurs allocations to the tune of O(n) bytes (where n stands for the length of the function's argument), with a constant factor of about 16. This vulnerability is fixed in 1.8.3. (CVE-2025-66506)
Sigstore Timestamp Authority is a service for issuing RFC 3161 timestamps. Prior to 2.0.3, Function api.ParseJSONRequest currently splits (via a call to strings.Split) an optionally-provided OID (which is untrusted data) on periods. Similarly, function api.getContentType splits the Content-Type header (which is also untrusted data) on an application string. As a result, in the face of a malicious request with either an excessively long OID in the payload containing many period characters or a malformed Content-Type header, a call to api.ParseJSONRequest or api.getContentType incurs allocations of O(n) bytes (where n stands for the length of the function's argument). This vulnerability is fixed in 2.0.3. (CVE-2025-66564)
Affected Packages:
runfinch-finch
Issue Correction:
Run dnf update runfinch-finch --releasever 2023.10.20260105 or dnf update --advisory ALAS2023-2025-1336 --releasever 2023.10.20260105 to update your system.
More information on how to update your system can be found on this page: Amazon Linux 2023 documentation
aarch64:
runfinch-finch-1.10.0-1.amzn2023.0.6.aarch64
src:
runfinch-finch-1.10.0-1.amzn2023.0.6.src
x86_64:
runfinch-finch-1.10.0-1.amzn2023.0.6.x86_64