Detections
Analytics
SUSE SLES15 Security Update : kubevirt-1.6, virt-api-container-1.6, virt-controller-container-1.6, virt-exportproxy-container-1.6, virt-exportserver-container-1.6, virt-handler-container-1.6, virt-launcher-container-1.6, virt-libguestfs-tools-container-1.6, virt-operator-container-1.6, virt-pr-helper-container-1.6, virt-synchronization-controller-container-1.6 (SUSE-SU-2026:3630-1)
high Nessus Plugin ID 337974
Language:
Synopsis
The remote SUSE host is missing one or more security updates.Description
The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3630-1 advisory.- CVE-2025-47911: golang.org/x/net/html: algorithms that have quadratic complexity when parsing HTML documents allow for denial of service (bsc#1251420).
- CVE-2025-47914: golang.org/x/crypto/ssh/agent: no validation of message size when processing new identity requests can cause a panic due to an out-of-bounds read (bsc#1254014).
- CVE-2025-58181: golang.org/x/crypto/ssh: no validation of number of mechanisms in GSSAPI authentication requests can cause unbounded memory consumption (bsc#1253935).
- CVE-2025-58190: golang.org/x/net/html: excessive memory consumption by `html.ParseFragment` when processing specially crafted input can lead to a denial of service (bsc#1251615).
- CVE-2026-13201: virt-handler-rhel9: kubevirt: safepath `OpenAtNoFollow` symlink following via `/proc/self/fd` allows host file metadata modification (bsc#1269093).
- CVE-2026-13622: virt-handler migration proxy follows symlinks and allows container escape to host (bsc#1272840).
- CVE-2026-25680,CVE-2026-25681,CVE-2026-27136,CVE-2026-42502,CVE-2026-42506: golang.org/x/net/html:
multiple issues when parsing HTML files (bsc#1267120).
- CVE-2026-33814: golang.org/x/net/http2: processing of HTTP/2 SETTINGS frames with a crafted `SETTINGS_MAX_FRAME_SIZE` can lead to an infinite loop and a denial of service (bsc#1265736).
- CVE-2026-35469: github.com/moby/spdystream: improper validation of attacker-controlled input in the SPDY/3 frame parser allows for a denial of service via crafted SPDY frames (bsc#1262265).
- CVE-2026-39821: golang.org/x/net/idna: failure to reject ASCII-only Punycode-encoded labels allows for validation bypass and privilege escalation (bsc#1266575).
- CVE-2026-46600: parsing of invalid SVCB or HTTPS RR when the size of a parameter value overflows the message buffer can lead to panic (bsc#1273606).
- CVE-2026-56852: improper handling of truncated/invalid UTF-8 input can lead to an infinite loop (bsc#1272000).
Other updates and bugfixes:
- Fixed `printf`-style calls with non-constant format strings (`cmd/virt-chroot`, `tests/`) that fail `go1.25`'s vet (toolchain required by the `x/net` 0.55.0 re-vendor); rewritten with no behavior change.
- Build with Go >= 1.25 (required by `golang.org/x/net` 0.55).
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 kubevirt-1.6-manifests and / or kubevirt-1.6-virtctl packages.See Also
https://bugzilla.suse.com/1251420
https://bugzilla.suse.com/1251615
https://bugzilla.suse.com/1253935
https://bugzilla.suse.com/1254014
https://bugzilla.suse.com/1262265
https://bugzilla.suse.com/1265736
https://bugzilla.suse.com/1266575
https://bugzilla.suse.com/1267120
https://bugzilla.suse.com/1269093
https://bugzilla.suse.com/1272000
https://bugzilla.suse.com/1272840
https://bugzilla.suse.com/1273606
https://lists.suse.com/pipermail/sle-updates/2026-August/049361.html
https://www.suse.com/security/cve/CVE-2025-47911
https://www.suse.com/security/cve/CVE-2025-47914
https://www.suse.com/security/cve/CVE-2025-58181
https://www.suse.com/security/cve/CVE-2025-58190
https://www.suse.com/security/cve/CVE-2026-13201
https://www.suse.com/security/cve/CVE-2026-13622
https://www.suse.com/security/cve/CVE-2026-25680
https://www.suse.com/security/cve/CVE-2026-25681
https://www.suse.com/security/cve/CVE-2026-27136
https://www.suse.com/security/cve/CVE-2026-33814
https://www.suse.com/security/cve/CVE-2026-35469
https://www.suse.com/security/cve/CVE-2026-39821
https://www.suse.com/security/cve/CVE-2026-42502
https://www.suse.com/security/cve/CVE-2026-42506
Plugin Details
Severity: High
ID: 337974
File Name: suse_SU-2026-3630-1.nasl
Version: 1.1
Type: Local
Agent: unix
Family: SuSE Local Security Checks
Published: 8/19/2026
Updated: 8/19/2026
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
Percentile: 96.55
CVSS v2
Risk Factor: High
Base Score: 7.8
Temporal Score: 6.1
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS Score Source: CVE-2026-33814
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.7
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
CVSS v4
Risk Factor: High
Base Score: 8.7
Threat Score: 7.7
Threat Vector: CVSS:4.0/E:P
Vector: 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
CVSS Score Source: CVE-2026-35469
Vulnerability Information
CPE: cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:kubevirt-1.6-manifests, p-cpe:/a:novell:suse_linux:kubevirt-1.6-virtctl
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 8/17/2026
Vulnerability Publication Date: 10/23/2025
Reference Information
CVE: CVE-2025-47911, CVE-2025-47914, CVE-2025-58181, CVE-2025-58190, CVE-2026-13201, CVE-2026-13622, CVE-2026-25680, CVE-2026-25681, CVE-2026-27136, CVE-2026-33814, CVE-2026-35469, CVE-2026-39821, CVE-2026-42502, CVE-2026-42506, CVE-2026-46600, CVE-2026-56852
SuSE: SUSE-SU-2026:3630-1