SB20260731142 - SUSE update for go1.25-openssl
Published: July 31, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 9 vulnerabilities.
1) Protection mechanism failure (CVE-ID: CVE-2026-27140)
CWE-ID: CWE-693 - Protection Mechanism Failure
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to a trust layer bypass in cmd/go when processing SWIG file names containing 'cgo' and crafted payloads at build time. A remote attacker can supply a specially crafted SWIG file to execute arbitrary code.
2) Integer overflow (CVE-ID: CVE-2026-27143)
CWE-ID: CWE-190 - Integer overflow
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to cause memory corruption.
The vulnerability exists due to integer overflow in cmd/compile when optimizing arithmetic over induction variables in loops. A local user can compile specially crafted code to cause memory corruption.
The issue can result in invalid indexing at runtime.
3) Buffer overflow (CVE-ID: CVE-2026-27144)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to cause memory corruption at runtime.
The vulnerability exists due to memory corruption in cmd/compile when compiling code involving a no-op interface conversion on pointers used as operands of a memory move. A local user can compile specially crafted code to cause memory corruption at runtime.
4) Resource exhaustion (CVE-ID: CVE-2026-32280)
CWE-ID: CWE-400 - Resource exhaustion
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to uncontrolled resource consumption in the Certificate.Verify chain-building logic in crypto/x509 when processing a large number of intermediate certificates supplied through VerifyOptions.Intermediates. A remote attacker can provide a large number of intermediate certificates to cause a denial of service.
This affects both direct users of crypto/x509 and users of crypto/tls.
5) Input validation error (CVE-ID: CVE-2026-32281)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper input validation in Certificate.Verify in crypto/x509 when validating certificate chains containing a very large number of policy mappings. A remote attacker can present a specially crafted certificate chain to cause a denial of service.
This only affects validation of otherwise trusted certificate chains issued by a root CA in the VerifyOptions.Roots CertPool or in the system certificate pool.
6) Time-of-check Time-of-use (TOCTOU) Race Condition (CVE-ID: CVE-2026-32282)
CWE-ID: CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to modify file permissions outside the intended root directory.
The vulnerability exists due to improper access control in Root.Chmod and internal/syscall/unix Fchmodat when handling a chmod operation on Linux. A local user can replace the target with a symlink during the check-and-operation window to modify file permissions outside the intended root directory.
Exploitation requires a race condition in which the target is swapped with a symlink while the chmod operation is in progress.
7) Dependency on vulnerable third-party component (CVE-ID: CVE-2026-32283)
CWE-ID: CWE-1395 - Dependency on Vulnerable Third-Party Component
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to dependency on a vulnerable third-party component in the Go standard library used by Fleet Server when handling network input. A remote attacker can send a specially crafted payload to cause a denial of service.
All configurations are affected.
8) Allocation of Resources Without Limits or Throttling (CVE-ID: CVE-2026-32288)
CWE-ID: CWE-770 - Allocation of Resources Without Limits or Throttling
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to uncontrolled memory allocation in archive/tar Reader.Next when parsing a maliciously crafted tar archive containing a large number of sparse regions encoded in the old GNU sparse map format. A remote attacker can supply a specially crafted archive to cause a denial of service.
9) Cross-site scripting (CVE-ID: CVE-2026-32289)
CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to inject arbitrary script code.
The vulnerability exists due to improper neutralization of input during web page generation in html/template when processing template actions within JavaScript template literals. A remote attacker can supply crafted input that is incorrectly escaped to inject arbitrary script code.
Exploitation requires templates that use branches or actions within JavaScript template literals.
Remediation
Install update from vendor's website.