CVE-2026-13595
Açıklama (NVD)
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.
Yayın: 29.06.2026 · Son değişiklik: 12.11.2026 · Zayıflık: CWE-416
CVSS 3.1 metrikleri
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H
| Saldırı vektörü | Yerel |
| Karmaşıklık | Yüksek |
| Gereken yetki | Düşük |
| Kullanıcı etkileşimi | Gerekmez |
| Kapsam | Değişmez |
| Gizlilik | Düşük |
| Bütünlük | Yok |
| Erişilebilirlik | Yüksek |
Hesaplanan temel puan: 5.3. CVSS hesaplayıcıda incele
Referanslar
- https://access.redhat.com/errata/RHSA-2026:26573
- https://access.redhat.com/errata/RHSA-2026:93461
- https://access.redhat.com/errata/RHSA-2026:95365
- https://access.redhat.com/errata/RHSA-2026:96212
- https://access.redhat.com/errata/RHSA-2026:97522
- https://access.redhat.com/errata/RHSA-2026:99119
- https://access.redhat.com/security/cve/CVE-2026-13595
- https://bugzilla.redhat.com/show_bug.cgi?id=2494101
- https://github.com/util-linux/util-linux/commit/c0186f14fbdb02f64c8e0ba701ce727ea764ff4c