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OVAL Definitions
>
OVAL Definition Details
Id
oval:ru.altx-soft.nix:def:208150
[Eng]
Version
9
Class
vulnerability
ALTXid
429989
Language
Russian
Severity
High
Title
Ubuntu/Linux Mint -- уязвимость в linux, linux-aws, linux-azure-fde, linux-ibm, linux-intel-iotg, linux-iot, linux-oem-6.1, linux-xilinx-zynqmp (CVE-2023-1998)
Description
В продукте linux, linux-aws, linux-azure-fde, linux-ibm, linux-intel-iotg, linux-iot, linux-oem-6.1, linux-xilinx-zynqmp обнаружена уязвимость CVE-2023-1998.
Family
unix
Platform
Linux Mint 17.x
Linux Mint 18.x
Linux Mint 19.x
Linux Mint 20.x
Ubuntu 14.04
Ubuntu 16.04
Ubuntu 18.04
Ubuntu 20.04
Ubuntu 22.04
Ubuntu 22.10
Product
linux
linux-aws
linux-azure-fde
linux-ibm
linux-intel-iotg
linux-iot
linux-oem-6.1
linux-xilinx-zynqmp
Reference
VENDOR: USN-6740-1
VENDOR: USN-6740-1
Id:
USN-6740-1
Reference:
https://ubuntu.com/security/notices/USN-6740-1
VENDOR: USN-6739-1
VENDOR: USN-6739-1
Id:
USN-6739-1
Reference:
https://ubuntu.com/security/notices/USN-6739-1
VENDOR: USN-6256-1
VENDOR: USN-6256-1
Id:
USN-6256-1
Reference:
https://ubuntu.com/security/notices/USN-6256-1
VENDOR: USN-6222-1
VENDOR: USN-6222-1
Id:
USN-6222-1
Reference:
https://ubuntu.com/security/notices/USN-6222-1
VENDOR: USN-6223-1
VENDOR: USN-6223-1
Id:
USN-6223-1
Reference:
https://ubuntu.com/security/notices/USN-6223-1
VENDOR: USN-6207-1
VENDOR: USN-6207-1
Id:
USN-6207-1
Reference:
https://ubuntu.com/security/notices/USN-6207-1
VENDOR: USN-6187-1
VENDOR: USN-6187-1
Id:
USN-6187-1
Reference:
https://ubuntu.com/security/notices/USN-6187-1
VENDOR: USN-6185-1
VENDOR: USN-6185-1
Id:
USN-6185-1
Reference:
https://ubuntu.com/security/notices/USN-6185-1
VENDOR: USN-6172-1
VENDOR: USN-6172-1
Id:
USN-6172-1
Reference:
https://ubuntu.com/security/notices/USN-6172-1
VENDOR: USN-6171-1
VENDOR: USN-6171-1
Id:
USN-6171-1
Reference:
https://ubuntu.com/security/notices/USN-6171-1
FSTEC: BDU:2023-02115
FSTEC: BDU:2023-02115
Id:
BDU:2023-02115
Reference:
https://bdu.fstec.ru/vul/2023-02115
CVE: CVE-2023-1998
CVE: CVE-2023-1998
Id:
CVE-2023-1998
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1998
Comment
: The Linux kernel allows userspace processes to enable mitigations by calling prctl with PR_SET_SPECULATION_CTRL which disables the speculation feature as well as by using seccomp. We had noticed that on VMs of at least one major cloud provider, the kernel still left the victim process exposed to attacks in some cases even after enabling the spectre-BTI mitigation with prctl. The same behavior can be observed on a bare-metal machine when forcing the mitigation to IBRS on boot command line. This happened because when plain IBRS was enabled (not enhanced IBRS), the kernel had some logic that determined that STIBP was not needed. The IBRS bit implicitly protects against cross-thread branch target injection. However, with legacy IBRS, the IBRS bit was cleared on returning to userspace, due to performance reasons, which disabled the implicit STIBP and left userspace threads vulnerable to cross-thread branch target injection against which STIBP protects.
CVSSv3 Score:
5.6
Attack vector:
LOCAL
Attack complexity:
HIGH
Privileges required:
LOW
User interaction:
NONE
Scope:
CHANGED
Confidentiality impact:
HIGH
Integrity impact:
NONE
Availability impact:
NONE
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
CWE:
203 (Information Exposure Through Discrepancy)
References:
https://kernel.dance/#6921ed9049bc7457f66c1596c5b78aec0dae4a9d (MISC)
https://github.com/google/security-research/security/advisories/GHSA-mj4w-6495-6crx (MISC)
https://github.com/torvalds/linux/commit/6921ed9049bc7457f66c1596c5b78aec0dae4a9d (MISC)
https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html (MISC)
https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html (MISC)
VENDOR: USN-6033-1
VENDOR: USN-6033-1
Id:
USN-6033-1
Reference:
https://ubuntu.com/security/notices/USN-6033-1
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