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fix(libvirt): CVE-2025-13193 set proper umask for external snapshots #24

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fix(libvirt): CVE-2025-13193 set proper umask for external snapshots #24

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8 changes: 8 additions & 0 deletions debian/changelog
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Original file line number Diff line number Diff line change
@@ -1,3 +1,11 @@
libvirt (10.7.0+really9.10.0-1deepin17) unstable; urgency=medium

* Fix CVE-2025-13193: set proper umask for external snapshot images to
prevent world-readable file creation (information disclosure
vulnerability).

-- deepin-ci-robot <packages@deepin.org> Wed, 27 May 2026 01:47:54 +0800

libvirt (10.7.0+really9.10.0-1deepin16) unstable; urgency=medium

* Enable ACPI by default for LoongArch virt machines
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12 changes: 12 additions & 0 deletions debian/patches/backport/CVE-2025-13193-set-umask-for-external-snapshots.patch
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Original file line number Diff line number Diff line change
@@ -0,0 +1,12 @@
--- a/src/qemu/qemu_snapshot.c
+++ b/src/qemu/qemu_snapshot.c
@@ -233,6 +233,9 @@
NULL)))
return -1;

+ /* ensure that new files are only readable by the user */
+ virCommandSetUmask(cmd, 0077);
+
/* adds cmd line arg: backing_fmt=format,backing_file=/path/to/backing/file */
virBufferAsprintf(&buf, "backing_fmt=%s,backing_file=",
virStorageFileFormatTypeToString(defdisk->src->format));
1 change: 1 addition & 0 deletions debian/patches/series
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Expand Up @@ -15,3 +15,4 @@ fix-firmware-descriptor-parsing.patch
add-loongarch64-arch-support.patch
fix-virtio-iommu-test-expected-output.patch
enable-acpi-for-loongarch-virt.patch
backport/CVE-2025-13193-set-umask-for-external-snapshots.patch
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