From: Vijay Anusuri <[email protected]> Upstream-Status: Backport from https://github.com/golang/go/commit/04db77a423cac75bb82cc9a6859991ae9c016344
Signed-off-by: Vijay Anusuri <[email protected]> --- meta/recipes-devtools/go/go-1.17.13.inc | 1 + .../go/go-1.18/CVE-2025-61727.patch | 229 ++++++++++++++++++ 2 files changed, 230 insertions(+) create mode 100644 meta/recipes-devtools/go/go-1.18/CVE-2025-61727.patch diff --git a/meta/recipes-devtools/go/go-1.17.13.inc b/meta/recipes-devtools/go/go-1.17.13.inc index 1433d54f06..0ea3b6704f 100644 --- a/meta/recipes-devtools/go/go-1.17.13.inc +++ b/meta/recipes-devtools/go/go-1.17.13.inc @@ -75,6 +75,7 @@ SRC_URI = "https://golang.org/dl/go${PV}.src.tar.gz;name=main \ file://CVE-2025-61723.patch \ file://CVE-2025-61724.patch \ file://CVE-2023-39323.patch \ + file://CVE-2025-61727.patch \ " SRC_URI[main.sha256sum] = "a1a48b23afb206f95e7bbaa9b898d965f90826f6f1d1fc0c1d784ada0cd300fd" diff --git a/meta/recipes-devtools/go/go-1.18/CVE-2025-61727.patch b/meta/recipes-devtools/go/go-1.18/CVE-2025-61727.patch new file mode 100644 index 0000000000..23dc35b8b8 --- /dev/null +++ b/meta/recipes-devtools/go/go-1.18/CVE-2025-61727.patch @@ -0,0 +1,229 @@ +From 04db77a423cac75bb82cc9a6859991ae9c016344 Mon Sep 17 00:00:00 2001 +From: Roland Shoemaker <[email protected]> +Date: Mon, 24 Nov 2025 08:46:08 -0800 +Subject: [PATCH] [release-branch.go1.24] crypto/x509: excluded subdomain + constraints preclude wildcard SANs + +When evaluating name constraints in a certificate chain, the presence of +an excluded subdomain constraint (e.g., excluding "test.example.com") +should preclude the use of a wildcard SAN (e.g., "*.example.com"). + +Fixes #76442 +Fixes #76463 +Fixes CVE-2025-61727 + +Change-Id: I42a0da010cb36d2ec9d1239ae3f61cf25eb78bba +Reviewed-on: https://go-review.googlesource.com/c/go/+/724401 +Reviewed-by: Nicholas Husin <[email protected]> +Reviewed-by: Daniel McCarney <[email protected]> +LUCI-TryBot-Result: Go LUCI <[email protected]> +Reviewed-by: Nicholas Husin <[email protected]> +Reviewed-by: Neal Patel <[email protected]> + +Upstream-Status: Backport [https://github.com/golang/go/commit/04db77a423cac75bb82cc9a6859991ae9c016344] +CVE: CVE-2025-61727 +Signed-off-by: Vijay Anusuri <[email protected]> +--- + src/crypto/x509/name_constraints_test.go | 34 ++++++++++++++++++++ + src/crypto/x509/verify.go | 40 +++++++++++++++--------- + src/crypto/x509/verify_test.go | 2 +- + 3 files changed, 60 insertions(+), 16 deletions(-) + +diff --git a/src/crypto/x509/name_constraints_test.go b/src/crypto/x509/name_constraints_test.go +index c59a7dc..963bc5a 100644 +--- a/src/crypto/x509/name_constraints_test.go ++++ b/src/crypto/x509/name_constraints_test.go +@@ -1595,6 +1595,40 @@ var nameConstraintsTests = []nameConstraintsTest{ + cn: "foo.bar", + }, + }, ++ // #87: subdomain excluded constraints preclude wildcard names ++ { ++ roots: []constraintsSpec{ ++ { ++ bad: []string{"dns:foo.example.com"}, ++ }, ++ }, ++ intermediates: [][]constraintsSpec{ ++ { ++ {}, ++ }, ++ }, ++ leaf: leafSpec{ ++ sans: []string{"dns:*.example.com"}, ++ }, ++ expectedError: "\"*.example.com\" is excluded by constraint \"foo.example.com\"", ++ }, ++ // #88: wildcard names are not matched by subdomain permitted constraints ++ { ++ roots: []constraintsSpec{ ++ { ++ ok: []string{"dns:foo.example.com"}, ++ }, ++ }, ++ intermediates: [][]constraintsSpec{ ++ { ++ {}, ++ }, ++ }, ++ leaf: leafSpec{ ++ sans: []string{"dns:*.example.com"}, ++ }, ++ expectedError: "\"*.example.com\" is not permitted", ++ }, + } + + func makeConstraintsCACert(constraints constraintsSpec, name string, key *ecdsa.PrivateKey, parent *Certificate, parentKey *ecdsa.PrivateKey) (*Certificate, error) { +diff --git a/src/crypto/x509/verify.go b/src/crypto/x509/verify.go +index 99f38a0..88260ee 100644 +--- a/src/crypto/x509/verify.go ++++ b/src/crypto/x509/verify.go +@@ -390,7 +390,7 @@ func domainToReverseLabels(domain string) (reverseLabels []string, ok bool) { + return reverseLabels, true + } + +-func matchEmailConstraint(mailbox rfc2821Mailbox, constraint string, reversedDomainsCache map[string][]string, reversedConstraintsCache map[string][]string) (bool, error) { ++func matchEmailConstraint(mailbox rfc2821Mailbox, constraint string, excluded bool, reversedDomainsCache map[string][]string, reversedConstraintsCache map[string][]string) (bool, error) { + // If the constraint contains an @, then it specifies an exact mailbox + // name. + if strings.Contains(constraint, "@") { +@@ -403,10 +403,10 @@ func matchEmailConstraint(mailbox rfc2821Mailbox, constraint string, reversedDom + + // Otherwise the constraint is like a DNS constraint of the domain part + // of the mailbox. +- return matchDomainConstraint(mailbox.domain, constraint, reversedDomainsCache, reversedConstraintsCache) ++ return matchDomainConstraint(mailbox.domain, constraint, excluded, reversedDomainsCache, reversedConstraintsCache) + } + +-func matchURIConstraint(uri *url.URL, constraint string, reversedDomainsCache map[string][]string, reversedConstraintsCache map[string][]string) (bool, error) { ++func matchURIConstraint(uri *url.URL, constraint string, excluded bool, reversedDomainsCache map[string][]string, reversedConstraintsCache map[string][]string) (bool, error) { + // From RFC 5280, Section 4.2.1.10: + // “a uniformResourceIdentifier that does not include an authority + // component with a host name specified as a fully qualified domain +@@ -433,7 +433,7 @@ func matchURIConstraint(uri *url.URL, constraint string, reversedDomainsCache ma + return false, fmt.Errorf("URI with IP (%q) cannot be matched against constraints", uri.String()) + } + +- return matchDomainConstraint(host, constraint, reversedDomainsCache, reversedConstraintsCache) ++ return matchDomainConstraint(host, constraint, excluded, reversedDomainsCache, reversedConstraintsCache) + } + + func matchIPConstraint(ip net.IP, constraint *net.IPNet) (bool, error) { +@@ -450,7 +450,7 @@ func matchIPConstraint(ip net.IP, constraint *net.IPNet) (bool, error) { + return true, nil + } + +-func matchDomainConstraint(domain, constraint string, reversedDomainsCache map[string][]string, reversedConstraintsCache map[string][]string) (bool, error) { ++func matchDomainConstraint(domain, constraint string, excluded bool, reversedDomainsCache map[string][]string, reversedConstraintsCache map[string][]string) (bool, error) { + // The meaning of zero length constraints is not specified, but this + // code follows NSS and accepts them as matching everything. + if len(constraint) == 0 { +@@ -467,6 +467,11 @@ func matchDomainConstraint(domain, constraint string, reversedDomainsCache map[s + reversedDomainsCache[domain] = domainLabels + } + ++ wildcardDomain := false ++ if len(domain) > 0 && domain[0] == '*' { ++ wildcardDomain = true ++ } ++ + // RFC 5280 says that a leading period in a domain name means that at + // least one label must be prepended, but only for URI and email + // constraints, not DNS constraints. The code also supports that +@@ -493,6 +498,11 @@ func matchDomainConstraint(domain, constraint string, reversedDomainsCache map[s + return false, nil + } + ++ if excluded && wildcardDomain && len(domainLabels) > 1 && len(constraintLabels) > 0 { ++ domainLabels = domainLabels[:len(domainLabels)-1] ++ constraintLabels = constraintLabels[:len(constraintLabels)-1] ++ } ++ + for i, constraintLabel := range constraintLabels { + if !strings.EqualFold(constraintLabel, domainLabels[i]) { + return false, nil +@@ -512,7 +522,7 @@ func (c *Certificate) checkNameConstraints(count *int, + nameType string, + name string, + parsedName interface{}, +- match func(parsedName, constraint interface{}) (match bool, err error), ++ match func(parsedName, constraint interface{}, excluded bool) (match bool, err error), + permitted, excluded interface{}) error { + + excludedValue := reflect.ValueOf(excluded) +@@ -524,7 +534,7 @@ func (c *Certificate) checkNameConstraints(count *int, + + for i := 0; i < excludedValue.Len(); i++ { + constraint := excludedValue.Index(i).Interface() +- match, err := match(parsedName, constraint) ++ match, err := match(parsedName, constraint, true) + if err != nil { + return CertificateInvalidError{c, CANotAuthorizedForThisName, err.Error()} + } +@@ -546,7 +556,7 @@ func (c *Certificate) checkNameConstraints(count *int, + constraint := permittedValue.Index(i).Interface() + + var err error +- if ok, err = match(parsedName, constraint); err != nil { ++ if ok, err = match(parsedName, constraint, false); err != nil { + return CertificateInvalidError{c, CANotAuthorizedForThisName, err.Error()} + } + +@@ -633,8 +643,8 @@ func (c *Certificate) isValid(certType int, currentChain []*Certificate, opts *V + } + + if err := c.checkNameConstraints(&comparisonCount, maxConstraintComparisons, "email address", name, mailbox, +- func(parsedName, constraint interface{}) (bool, error) { +- return matchEmailConstraint(parsedName.(rfc2821Mailbox), constraint.(string), reversedDomainsCache, reversedConstraintsCache) ++ func(parsedName, constraint interface{}, excluded bool) (bool, error) { ++ return matchEmailConstraint(parsedName.(rfc2821Mailbox), constraint.(string), excluded, reversedDomainsCache, reversedConstraintsCache) + }, c.PermittedEmailAddresses, c.ExcludedEmailAddresses); err != nil { + return err + } +@@ -646,8 +656,8 @@ func (c *Certificate) isValid(certType int, currentChain []*Certificate, opts *V + } + + if err := c.checkNameConstraints(&comparisonCount, maxConstraintComparisons, "DNS name", name, name, +- func(parsedName, constraint interface{}) (bool, error) { +- return matchDomainConstraint(parsedName.(string), constraint.(string), reversedDomainsCache, reversedConstraintsCache) ++ func(parsedName, constraint interface{}, excluded bool) (bool, error) { ++ return matchDomainConstraint(parsedName.(string), constraint.(string), excluded, reversedDomainsCache, reversedConstraintsCache) + }, c.PermittedDNSDomains, c.ExcludedDNSDomains); err != nil { + return err + } +@@ -660,8 +670,8 @@ func (c *Certificate) isValid(certType int, currentChain []*Certificate, opts *V + } + + if err := c.checkNameConstraints(&comparisonCount, maxConstraintComparisons, "URI", name, uri, +- func(parsedName, constraint interface{}) (bool, error) { +- return matchURIConstraint(parsedName.(*url.URL), constraint.(string), reversedDomainsCache, reversedConstraintsCache) ++ func(parsedName, constraint interface{}, excluded bool) (bool, error) { ++ return matchURIConstraint(parsedName.(*url.URL), constraint.(string), excluded, reversedDomainsCache, reversedConstraintsCache) + }, c.PermittedURIDomains, c.ExcludedURIDomains); err != nil { + return err + } +@@ -673,7 +683,7 @@ func (c *Certificate) isValid(certType int, currentChain []*Certificate, opts *V + } + + if err := c.checkNameConstraints(&comparisonCount, maxConstraintComparisons, "IP address", ip.String(), ip, +- func(parsedName, constraint interface{}) (bool, error) { ++ func(parsedName, constraint interface{}, _ bool) (bool, error) { + return matchIPConstraint(parsedName.(net.IP), constraint.(*net.IPNet)) + }, c.PermittedIPRanges, c.ExcludedIPRanges); err != nil { + return err +diff --git a/src/crypto/x509/verify_test.go b/src/crypto/x509/verify_test.go +index 31e8149..5f7c834 100644 +--- a/src/crypto/x509/verify_test.go ++++ b/src/crypto/x509/verify_test.go +@@ -1648,7 +1648,7 @@ var nameConstraintTests = []struct { + + func TestNameConstraints(t *testing.T) { + for i, test := range nameConstraintTests { +- result, err := matchDomainConstraint(test.domain, test.constraint, map[string][]string{}, map[string][]string{}) ++ result, err := matchDomainConstraint(test.domain, test.constraint, false, map[string][]string{}, map[string][]string{}) + + if err != nil && !test.expectError { + t.Errorf("unexpected error for test #%d: domain=%s, constraint=%s, err=%s", i, test.domain, test.constraint, err) +-- +2.25.1 + -- 2.25.1
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