xen: This update for xen fixes the following issues: Security issues fixed: - CVE-2025-27466: NULL pointer deref...
CVE-2025-27466 is fixed in xen on 1 platform, first by SUSE-SU-2025:03172-1, released September 11, 2025. It is not reported as exploited. Patch Radar priority: Urgent.
This update for xen fixes the following issues: Security issues fixed: - CVE-2025-27466: NULL pointer dereference in the Viridian interface when updating the reference TSC area (bsc#1248807). - CVE-2025-58142: NULL pointer dereference in the Viridian interface due to assumption that the SIM page is mapped when a synthetic timer message has to be delivered (bsc#1248807). - CVE-2025-58143: information leak and reference counter underflow in the Viridian interface due to race in the mapping of the reference TSC page (bsc#1248807). Other issues fixed: - efi: Call FreePages() only if needed (bsc#1027519). - x86/hpet: do local APIC EOI after interrupt processing (bsc#1027519). - x86/hvm/ioreq: Fix condition in hvm_alloc_legacy_ioreq_gfn() (bsc#1027519). - x86/idle: Fix the C6 eoi_errata[] list to include NEHALEM_EX (bsc#1027519). - x86/iommu: setup MMCFG ahead of IOMMU (bsc#1027519). - x86/mce: Adjustments to intel_init_ppin() (bsc#1027519). - x86/mkelf32: pad load segment to 2Mb boundary (bsc#1027519).
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| xen · Debian 12.15 (bookworm) | 4.17.5+72-g01140da4e8-1 | DEBIAN-CVE-2025-27466 | Sep 11, 2025 |
| xen · Debian 13.5 (trixie) | 4.20.2+7-g1badcf5035-0+deb13u1 | DEBIAN-CVE-2025-27466 | Sep 11, 2025 |
| xen · Debian 14 | 4.20.2+7-g1badcf5035-1 | DEBIAN-CVE-2025-27466 | Sep 11, 2025 |
| xen · opensuse-leap 15.6 | 4.18.5_08-150600.3.34.2 | SUSE-SU-2026:0012-1 | Jan 5, 2026 |
| xen · sles 15.6 | 4.18.5_08-150600.3.34.2 | SUSE-SU-2026:0012-1 | Jan 5, 2026 |
| xen · sles 15.7 | 4.20.1_04-150700.3.11.1 | SUSE-SU-2025:03172-1 | Sep 11, 2025 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.