ID de Prueba:	1.3.6.1.4.1.25623.1.1.10.2020.0355
Categoría:	Mageia Linux Local Security Checks
Título:	Mageia: Security Advisory (MGASA-2020-0355)
Resumen:	The remote host is missing an update for the 'kernel, kernel-linus, kmod-virtualbox, kmod-xtables-addons, wireguard-tools' package(s) announced via the MGASA-2020-0355 advisory.
Descripción:	Summary: The remote host is missing an update for the 'kernel, kernel-linus, kmod-virtualbox, kmod-xtables-addons, wireguard-tools' package(s) announced via the MGASA-2020-0355 advisory. Vulnerability Insight: This update is based on the upstream 5.7.19 kernel and fixes at least the following security issue: In the Linux kernel 5.0.21 and 5.3.11, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in try_merge_free_space in fs/btrfs/free-space-cache.c because the pointer to a left data structure can be the same as the pointer to a right data structure (CVE-2019-19448). A memory out-of-bounds read flaw was found in the Linux kernel's ext3/ext4 filesystem, in the way it accesses a directory with broken indexing. This flaw allows a local user to crash the system if the directory exists. The highest threat from this vulnerability is to system availability (CVE-2020-14314). For other upstream fixes and changes in this update, see the referenced changelogs. Also, the wireguard-tools package has been updated to version 1.0.20200827. Affected Software/OS: 'kernel, kernel-linus, kmod-virtualbox, kmod-xtables-addons, wireguard-tools' package(s) on Mageia 7. Solution: Please install the updated package(s). CVSS Score: 6.8 CVSS Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Referencia Cruzada:	Common Vulnerability Exposure (CVE) ID: CVE-2019-19448 https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19448 https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html https://usn.ubuntu.com/4578-1/ Common Vulnerability Exposure (CVE) ID: CVE-2020-14314 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14314 https://www.starwindsoftware.com/security/sw-20210325-0003/ https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5872331b3d91820e14716632ebb56b1399b34fe1 https://lore.kernel.org/linux-ext4/f53e246b-647c-64bb-16ec-135383c70ad7@redhat.com/T/#u https://usn.ubuntu.com/4576-1/ https://usn.ubuntu.com/4579-1/
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