PT-2019-4489 · Linux+6 · Linux Kernel+6
Tristan Madani
·
Publicado
2019-01-29
·
Atualizado
2024-08-05
·
CVE-2019-19770
CVSS v2.0
8.5
Alta
| Vetor | AV:N/AC:L/Au:N/C:P/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel version 4.19.83
Description
The issue is related to a use-after-free (read) in the
debugfs remove function in fs/debugfs/inode.c, which can be used to remove a file or directory in debugfs that was previously created with a call to another debugfs function such as debugfs create file. This can allow a remote attacker to access confidential data and cause a denial of service. However, Linux kernel developers dispute this issue as not being a problem with debugfs, but rather an issue with misuse of debugfs within blktrace.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Use After Free
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Alt Linux
Almalinux
Centos
Linux Kernel
Red Hat
Suse
Ubuntu