SUSE-SU-2026:0297-1

This update for go1.25-openssl fixes the following issues:

Update to version 1.25.6 (released 2026-01-15) (jsc#SLE-18320, bsc#1244485):

Security fixes:

• CVE-2025-4674 cmd/go: disable support for multiple vcs in one module (bsc#1246118).
• CVE-2025-47906 os/exec: LookPath bug: incorrect expansion of '', '.' and '..' in some PATH configurations (bsc#1247719).
• CVE-2025-47907 database/sql: incorrect results returned from Rows.Scan (bsc#1247720).
• CVE-2025-47910 net/http: CrossOriginProtection insecure bypass patterns not limited to exact matches (bsc#1249141).
• CVE-2025-47912 net/url: insufficient validation of bracketed IPv6 hostnames (bsc#1251257).
• CVE-2025-58183 archive/tar: unbounded allocation when parsing GNU sparse map (bsc#1251261).
• CVE-2025-58185 encoding/asn1: pre-allocating memory when parsing DER payload can cause memory exhaustion (bsc#1251258).
• CVE-2025-58186 net/http: lack of limit when parsing cookies can cause memory exhaustion (bsc#1251259).
• CVE-2025-58187 crypto/x509: quadratic complexity when checking name constraints (bsc#1251254).
• CVE-2025-58188 crypto/x509: panic when validating certificates with DSA public keys (bsc#1251260).
• CVE-2025-58189 crypto/tls: ALPN negotiation error contains attacker controlled information (bsc#1251255).
• CVE-2025-61723 encoding/pem: quadratic complexity when parsing some invalid inputs (bsc#1251256).
• CVE-2025-61724 net/textproto: excessive CPU consumption in Reader.ReadResponse (bsc#1251262).
• CVE-2025-61725 net/mail: excessive CPU consumption in ParseAddress (bsc#1251253).
• CVE-2025-61726 net/http: memory exhaustion in Request.ParseForm (bsc#1256817).
• CVE-2025-61727 crypto/x509: excluded subdomain constraint doesn't preclude wildcard SAN (bsc#1254430).
• CVE-2025-61728 archive/zip: denial of service when parsing arbitrary ZIP archives (bsc#1256816).
• CVE-2025-61729 crypto/x509: excessive resource consumption in printing error string for host certificate validation (bsc#1254431).
• CVE-2025-61730 crypto/tls: handshake messages may be processed at the incorrect encryption level (bsc#1256821).
• CVE-2025-61731 cmd/go: bypass of flag sanitization can lead to arbitrary code execution (bsc#1256819).
• CVE-2025-68119 cmd/go: unexpected code execution when invoking toolchain (bsc#1256820).
• CVE-2025-68121 crypto/tls: Config.Clone copies automatically generated session ticket keys, session resumption does not account for the expiration of full certificate chain (bsc#1256818).

Other fixes:

• go#74822 cmd/go: 'get toolchain@latest' should ignore release candidates
• go#74999 net: WriteMsgUDPAddrPort should accept IPv4-mapped IPv6 destination addresses on IPv4 UDP sockets
• go#75008 os/exec: TestLookPath fails on plan9 after CL 685755
• go#75021 testing/synctest: bubble not terminating
• go#75083 os: File.Seek doesn't set the correct offset with Windows overlapped handles
• go#75111 os, syscall: volume handles with FILEFLAGOVERLAPPED fail when calling ReadAt
• go#75116 os: Root.MkdirAll can return 'file exists' when called concurrently on the same path
• go#75139 os: Root.OpenRoot sets incorrect name, losing prefix of original root
• go#75221 debug/pe: pe.Open fails on object files produced by llvm-mingw 21
• go#75255 cmd/compile: export to DWARF types only referenced through interfaces
• go#75347 testing/synctest: test timeout with no runnable goroutines
• go#75357 net: new test TestIPv4WriteMsgUDPAddrPortTargetAddrIPVersion fails on plan9
• go#75480 cmd/link: linker panic and relocation errors with complex generics inlining
• go#75524 crypto/internal/fips140/rsa: requires a panic if self-tests fail
• go#75537 context: Err can return non-nil before Done channel is closed
• go#75539 net/http: internal error: connCount underflow
• go#75595 cmd/compile: internal compiler error with GOEXPERIMENT=cgocheck2 on github.com/leodido/go-urn
• go#75610 sync/atomic: comment for Uintptr.Or incorrectly describes return value
• go#75669 runtime: debug.decoratemappings don't work as expected
• go#75775 runtime: build fails when run via QEMU for linux/amd64 running on linux/arm64
• go#75777 spec: Go1.25 spec should be dated closer to actual release date
• go#75790 crypto/internal/fips140/subtle: Go 1.25 subtle.xorBytes panic on MIPS
• go#75832 net/url: ipv4 mapped ipv6 addresses should be valid in square brackets
• go#75861 crypto/x509: TLS validation fails for FQDNs with trailing dot
• go#75952 encoding/pem: regression when decoding blocks with leading garbage
• go#75989 os: on windows RemoveAll removing directories containing read-only files errors with unlinkat ... Access is denied
• go#76010 cmd/compile: any(func(){})==any(func(){}) does not panic but should
• go#76029 pem/encoding: malformed line endings can cause panics
• go#76245 mime: FormatMediaType and ParseMediaType not compatible across 1.24 to 1.25
• go#76360 os: on windows RemoveAll removing directories containing read-only files errors with unlinkat ... Access is denied, ReOpenFile error handling followup
• go#76392 os: package initialization hangs is Stdin is blocked
• go#76409 crypto/tls: earlyTrafficSecret should use ClientHelloInner if ECH enabled
• go#76620 os: on Unix, Readdirnames skips directory entries with zero inodes
• go#76761 runtime: stack split at bad time in os/signal with Go 1.25.4 windows 386
• go#76776 runtime: race detector crash on ppc64le
• go#76967 cmd/compile/internal/ssa: Compile.func1(): panic during sccp while compiling <function>: runtime error: index out of range
• go#76973 errors: errors.Join behavior changed in 1.25