openSUSE 16 Security Update : go1.26-openssl (openSUSE-SU-2026:21254-1)

critical Nessus Plugin ID 326021

Synopsis

The remote openSUSE host is missing one or more security updates.

Description

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21254-1 advisory.

Update to go1.26.4 (bsc#1255111).

Security issues fixed:

- CVE-2026-27140: cmd/go: trust layer bypass when using cgo and SWIG (bsc#1261653).
- CVE-2026-27143: cmd/compile: possible memory corruption after bound check elimination (bsc#1261654).
- CVE-2026-27144: cmd/compile: no-op interface conversion bypasses overlap checking (bsc#1261655).
- CVE-2026-27145: crypto/x509: split candidate hostname only once (bsc#1267450).
- CVE-2026-32280: crypto/x509: unexpected work during chain building (bsc#1261656).
- CVE-2026-32281: crypto/x509: inefficient policy validation (bsc#1261657).
- CVE-2026-32282: os: `Root.Chmod` can follow symlinks out of the root on Linux (bsc#1261658).
- CVE-2026-32283: crypto/tls: multiple key update handshake messages can cause connection to deadlock (bsc#1261659).
- CVE-2026-32288: archive/tar: unbounded allocation when parsing old format GNU sparse map (bsc#1261660).
- CVE-2026-32289: html/template: JS template literal context incorrectly tracked (bsc#1261661).
- CVE-2026-33810: crypto/x509: excluded DNS constraints not properly applied to wildcard domains (bsc#1261662).
- CVE-2026-33811: net: crash when handling long `CNAME` response (bsc#1264508).
- CVE-2026-33814: net/http: infinite loop in HTTP/2 transport when given bad `SETTINGS_MAX_FRAME_SIZE` (bsc#1264506).
- CVE-2026-39817: cmd/go: `go tool pack` does not sanitize output paths (bsc#1264505).
- CVE-2026-39819: cmd/go: `go bug` follows symlinks in predictable temporary filenames (bsc#1264504).
- CVE-2026-39820: net/mail: quadratic string concatentation in `consumeComment` (bsc#1264503).
- CVE-2026-39823: html/template: bypass of meta content URL escaping causes XSS (bsc#1264509).
- CVE-2026-39825: net/http/httputil: `ReverseProxy` forwards queries with more than `urlmaxqueryparams` parameters (bsc#1264500).
- CVE-2026-39826: html/template: escaper bypass leads to XSS (bsc#1264507).
- CVE-2026-39836: net: panic in `Dial` and `LookupPort` when handling `NUL` byte on Windows (bsc#1264501).
- CVE-2026-42499: net/mail: quadratic string concatenation in `consumePhrase` (bsc#1264502).
- CVE-2026-42501: cmd/go: malicious module proxy can bypass checksum database (bsc#1264499).
- CVE-2026-42504: mime: quadratic complexity in `WordDecoder.DecodeHeader` (bsc#1267442).
- CVE-2026-42507: net/textproto: arbitrary input is included in errors without any escaping (bsc#1267444).

Other updates and security fixes:

- Go packages miss `binutils-gold` dependency (bsc#1170826).
- Drop subpackage `go1.x-libstd` `std` library `.so` refs (jsc#PED-1962).
- Use `libalternatives` only on `suse_version >= 1610` and keep `update-alternatives` support for older distributions.
- Drop the `update-alternatives` migration path for `libalternatives` builds.
- Enable `libalternatives` for SLE16.1 and Tumbleweed (bsc#1245878).
- Drop go1.26 dependency on `update-alternatives` (bsc#1264395)
- Update to version 1.26.3 cut from the `go1.25-fips-release` branch at the revision tagged `go1.26.3-1-openssl-fips` (jsc#SLE-18320).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected go1.26-openssl and / or go1.26-openssl-race packages.

Plugin Details

Severity: Critical

ID: 326021

File Name: openSUSE-2026-21254-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 7/9/2026

Updated: 7/9/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.5

Percentile: 96.41

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-27143

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:novell:opensuse:16.0, p-cpe:/a:novell:opensuse:go1.26-openssl, p-cpe:/a:novell:opensuse:go1.26-openssl-race

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 7/7/2026

Vulnerability Publication Date: 4/7/2026

Reference Information

CVE: CVE-2026-27140, CVE-2026-27143, CVE-2026-27144, CVE-2026-27145, CVE-2026-32280, CVE-2026-32281, CVE-2026-32282, CVE-2026-32283, CVE-2026-32288, CVE-2026-32289, CVE-2026-33810, CVE-2026-33811, CVE-2026-33814, CVE-2026-39817, CVE-2026-39819, CVE-2026-39820, CVE-2026-39823, CVE-2026-39825, CVE-2026-39826, CVE-2026-39836, CVE-2026-42499, CVE-2026-42501, CVE-2026-42504, CVE-2026-42507

Detections

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