CVE-2026-13595 - Util-linux: util-linux: heap use-after-free in libblkid nested partition probing

CVE-2026-13595 - Util-linux: util-linux: heap use-after-free in libblkid nested partition probing

https://cvefeed.io/rssfeed/latest.atom / Mon, 06/29/2026 - 13:02
CVE ID :CVE-2026-13595
Published : June 29, 2026, 8:06 a.m. | 2 hours, 36 minutes ago
Description :A flaw was found in the libblkid library of util-linux. During nested partition probing, the BSD, Minix, Solaris x86, and UnixWare partition probers cache a raw pointer to a parent partition entry in a dynamically allocated array. When subsequent partition additions cause the array to be reallocated, this pointer becomes stale, leading to a heap use-after-free read. An attacker who can present a crafted block device image (for example, via USB insertion or a loop-mounted disk image) can trigger this flaw without user interaction, as libblkid is invoked automatically by udev/udisks as root on block-device hot-plug events. This could lead to limited information disclosure or denial of service.
Severity: 6.8 | MEDIUM
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