ALT-PU-2026-12830-1

Обновление пакета libvirt в ветке sisyphus_loongarch64

Версия12.6.0-alt1
Задание#0
Опубликовано2026-08-10
Макс. серьёзностьHIGH
Серьёзность:

Закрытые проблемы (5)

CVE-2026-61477
LOW2.3

An injection vulnerability was found in libvirt's virtual network driver. The network XML parser does not strip newline characters from DNS TXT record value attributes and SRV record domain/target attributes. These values are written verbatim into the dnsmasq configuration file generated by the network driver, allowing a user with permission to define virtual networks to inject arbitrary dnsmasq configuration directives such as dhcp-script, leading to arbitrary command execution as root.

Опубликовано: 2026-08-07Изменено: 2026-08-14
CVSS 3.xНИЗКАЯ 2.3
CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
CVE-2026-63622
HIGH7.8

A flaw was found in libvirt. A local attacker, specifically a process running as the confined `swtpm` user, could exploit a symlink-following vulnerability in the `virFileChownFiles()` function. By planting a symbolic link within the `swtpm` state directory, the attacker could trick the root-level libvirt daemon into changing the ownership of an arbitrary file to the `swtpm` user. This allows for privilege escalation from the `swtpm` sandbox to root-level file ownership control.

Опубликовано: 2026-08-10Изменено: 2026-08-14
CVSS 3.xВЫСОКАЯ 7.8
CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2026-63623
MEDIUM5.5

A flaw was found in libvirt. During storage volume clone or convert operations, newly created volume images were temporarily world-readable. This was caused by the `qemu-img` utility running with overly permissive file creation settings, allowing any local user to read the full guest disk contents. This vulnerability could lead to sensitive information disclosure from guest virtual machines.

Опубликовано: 2026-08-10Изменено: 2026-08-14
CVSS 3.xСРЕДНЯЯ 5.5
CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N