Mageia 7: MGASA-2020-0228 Critical: Kernel-Linus Denial Of Service
mageia
May 24, 2020
This update is based on the upstream 5.6.14 kernel and fixes atleast the following security issues: A NULL pointer dereference flaw was found in the Linux kernel's SELinux subsyst...
Summary
This update is based on the upstream 5.6.14 kernel and fixes atleast
the following security issues:
A NULL pointer dereference flaw was found in the Linux kernel's SELinux
subsystem in versions before 5.7. This flaw occurs while importing the
Commercial IP Security Option (CIPSO) protocol's category bitmap into
the SELinux extensible bitmap via the' ebitmap_netlbl_import' routine.
While processing the CIPSO restricted bitmap tag in the
'cipso_v4_parsetag_rbm' routine, it sets the security attribute to
indicate that the category bitmap is present, even if it has not been
allocated. This issue leads to a NULL pointer dereference issue while
importing the same category bitmap into SELinux. This flaw allows a
remote network user to crash the system kernel, resulting in a denial
of service (CVE-2020-10711).
usb_sg_cancel in drivers/usb/core/message.c in the Linux kernel before
5.6.8 has a use-after-free because a transfer occurs without a
reference(CVE-2020-12464).
An issue was discovere...
References
- https://bugs.mageia.org/show_bug.cgi?id=26661
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.7
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.8
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.9
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.10
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.11
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.12
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.13
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.14
- https://www.cve.org/CVERecord?id=CVE-2020-10711
- https://www.cve.org/CVERecord?id=CVE-2020-12464
- https://www.cve.org/CVERecord?id=CVE-2020-12659
- https://www.cve.org/CVERecord?id=CVE-2020-12770
- https://www.cve.org/CVERecord?id=CVE-2020-13143
Resolution
SRPMS
- 7/core/kernel-linus-5.6.14-1.mga7
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Publication date: 24 May 2020
URL: https://advisories.mageia.org/MGASA-2020-0228.html
Type: security
CVE: CVE-2020-10711,
CVE-2020-12464,
CVE-2020-12659,
CVE-2020-12770,
CVE-2020-13143
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