Описание
Security update for 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
This update for 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 fixes the following issues:
- 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.ParseFragmentwhen processing specially crafted input can lead to a denial of service (bsc#1251615). - CVE-2026-13201: virt-handler-rhel9: kubevirt: safepath
OpenAtNoFollowsymlink following via/proc/self/fdallows 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_SIZEcan 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 failgo1.25's vet (toolchain required by thex/net0.55.0 re-vendor); rewritten with no behavior change. - Build with Go >= 1.25 (required by
golang.org/x/net0.55).
Список пакетов
SUSE Linux Enterprise Module for Containers 15 SP7
Ссылки
- Link for SUSE-SU-2026:3630-1
- E-Mail link for SUSE-SU-2026:3630-1
- SUSE Security Ratings
- SUSE Bug 1251420
- SUSE Bug 1251615
- SUSE Bug 1253935
- SUSE Bug 1254014
- SUSE Bug 1262265
- SUSE Bug 1265736
- SUSE Bug 1266575
- SUSE Bug 1267120
- SUSE Bug 1269093
- SUSE Bug 1272000
- SUSE Bug 1272840
- SUSE Bug 1273606
- SUSE CVE CVE-2025-47911 page
- SUSE CVE CVE-2025-47914 page
- SUSE CVE CVE-2025-58181 page
- SUSE CVE CVE-2025-58190 page
- SUSE CVE CVE-2026-13201 page
Описание
The html.Parse function in golang.org/x/net/html has quadratic parsing complexity when processing certain inputs, which can lead to denial of service (DoS) if an attacker provides specially crafted HTML content.
Затронутые продукты
Ссылки
- CVE-2025-47911
- SUSE Bug 1251308
Описание
SSH Agent servers do not validate the size of messages when processing new identity requests, which may cause the program to panic if the message is malformed due to an out of bounds read.
Затронутые продукты
Ссылки
- CVE-2025-47914
- SUSE Bug 1253967
Описание
SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, allowing an attacker to cause unbounded memory consumption.
Затронутые продукты
Ссылки
- CVE-2025-58181
- SUSE Bug 1253784
Описание
The html.Parse function in golang.org/x/net/html has an infinite parsing loop when processing certain inputs, which can lead to denial of service (DoS) if an attacker provides specially crafted HTML content.
Затронутые продукты
Ссылки
- CVE-2025-58190
- SUSE Bug 1251309
Описание
A flaw was found in KubeVirt's safepath package used by virt-handler. The OpenAtNoFollow function uses O_PATH|O_NOFOLLOW to obtain a file descriptor to a path leaf, but downstream operations resolve the path via /proc/self/fd/N using link-following syscalls. When the leaf is a symlink, the kernel dereferences it, defeating the intended no-follow protection. An attacker with access to a virt-launcher pod can exploit this to redirect virt-handler's IPC socket connections, including the notify socket used for VM domain lifecycle events. By hijacking this socket, the attacker can inject arbitrary domain events into virt-handler, causing it to take incorrect lifecycle actions, corrupt VM state in the Kubernetes API, or crash - resulting in sustained denial of VM management services for all virtual machines on the affected node. Additionally, the same symlink following flaw allows virt-handler to apply file ownership or permission changes to unintended host paths.
Затронутые продукты
Ссылки
- CVE-2026-13201
- SUSE Bug 1269093
Описание
A symlink following vulnerability was found in KubeVirt's virt-handler migration proxy. During live migration, virt-handler dials Unix sockets inside the target virt-launcher pod via /proc/<pid>/root/ paths using net.Dial() without symlink protection. These socket paths reside in qemu-owned directories writable by the virt-launcher user. An attacker with namespace edit and pods/exec permissions can replace a migration proxy socket with a symlink to the host CRI-O socket. Because virt-handler runs as root in the host mount namespace, absolute symlink targets resolve against the host filesystem, and the bidirectional io.Copy proxy relays attacker-controlled bytes to the container runtime, enabling full node compromise.
Затронутые продукты
Ссылки
- CVE-2026-13622
- SUSE Bug 1272840
Описание
Parsing arbitrary HTML can consume excessive CPU time, possibly leading to denial of service.
Затронутые продукты
Ссылки
- CVE-2026-25680
- SUSE Bug 1267044
Описание
Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering.
Затронутые продукты
Ссылки
- CVE-2026-25681
- SUSE Bug 1267044
Описание
Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering.
Затронутые продукты
Ссылки
- CVE-2026-27136
- SUSE Bug 1267044
Описание
When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGS_MAX_FRAME_SIZE with a value of 0.
Затронутые продукты
Ссылки
- CVE-2026-33814
- SUSE Bug 1264506
- SUSE Bug 1268758
Описание
spdystream is a Go library for multiplexing streams over SPDY connections. In versions 0.5.0 and below, the SPDY/3 frame parser does not validate attacker-controlled counts and lengths before allocating memory. Three allocation paths are affected: the SETTINGS frame entry count, the header count in parseHeaderValueBlock, and individual header field sizes - all read as 32-bit integers and used directly as allocation sizes with no bounds checking. Because SPDY header blocks are zlib-compressed, a small on-the-wire payload can decompress into large attacker-controlled values. A remote peer that can send SPDY frames to a service using spdystream can exhaust process memory and cause an out-of-memory crash with a single crafted control frame. This issue has been fixed in version 0.5.1.
Затронутые продукты
Ссылки
- CVE-2026-35469
- SUSE Bug 1262264
Описание
The ToASCII and ToUnicode functions incorrectly accept Punycode-encoded labels that decode to an ASCII-only label. For example, ToUnicode("xn--example-.com") incorrectly returns the name "example.com" rather than an error. This behavior can lead to privilege escalation in programs using the idna package. For example, a program which performs privilege checks on the ASCII hostname may reject "example.com" but permit "xn--example-.com". If that program subsequently converts the ASCII hostname to Unicode, it will inadvertently permits access to the Unicode name "example.com".
Затронутые продукты
Ссылки
- CVE-2026-39821
- SUSE Bug 1266474
Описание
Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering.
Затронутые продукты
Ссылки
- CVE-2026-42502
- SUSE Bug 1267044
Описание
Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering.
Затронутые продукты
Ссылки
- CVE-2026-42506
- SUSE Bug 1267044
Описание
Parsing an invalid SVCB or HTTPS RR can panic when the size of a parameter value overflows the message buffer.
Затронутые продукты
Ссылки
- CVE-2026-46600
- SUSE Bug 1272415
Описание
A norm.Iter can enter an infinite loop when handling input containing invalid UTF-8 bytes.
Затронутые продукты
Ссылки
- CVE-2026-56852
- SUSE Bug 1271661