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The vulnerability of the `squashfs_opendir` function in the `unsquash-1.c` component of the Squashfs-Tools tooling suite relates to name space limitations on directories. This vulnerability allows an attacker to compromise data integrity and cause service failures.
🗓️ 27 Oct 2021 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 3 Views
| Reporter | Title | Published | Views | Family All 154 |
|---|---|---|---|---|
 | CVE-2021-40153 | 27 Aug 202115:15 | – | attackerkb |
 | Amazon Linux 2 : squashfs-tools (ALAS-2023-2152) | 20 Jul 202300:00 | – | nessus |
| Alibaba Cloud Linux 3 : 0129: squashfs-tools (ALINUX3-SA-2024:0129) | 14 May 202500:00 | – | nessus |
| CentOS 8 : squashfs-tools (CESA-2024:3139) | 22 May 202400:00 | – | nessus |
| CentOS 9 : squashfs-tools-4.4-10.git1.el9 | 29 Feb 202400:00 | – | nessus |
| Debian DLA-2752-1 : squashfs-tools - LTS security update | 3 Sep 202100:00 | – | nessus |
| Debian DLA-2789-1 : squashfs-tools - LTS security update | 21 Oct 202100:00 | – | nessus |
| Debian DSA-4967-1 : squashfs-tools - security update | 4 Sep 202100:00 | – | nessus |
| Debian DSA-4987-1 : squashfs-tools - security update | 16 Oct 202100:00 | – | nessus |
| EulerOS 2.0 SP8 : squashfs-tools (EulerOS-SA-2021-2645) | 2 Nov 202100:00 | – | nessus |
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19 Nov 2025 00:00Current
6.5Medium risk
Vulners AI Score6.5
CVSS 25.8
CVSS 38.1
EPSS0.025