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Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2023-12874)

high Nessus Plugin ID 183034

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Synopsis

The remote Oracle Linux host is missing one or more security updates.

Description

The remote Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2023-12874 advisory.

 - x86: KVM: SVM: always update the x2avic msr interception (Maxim Levitsky) [Orabug: 35857366] {CVE-2023-5090}
 - netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c (Kyle Zeng) [Orabug: 35824287] {CVE-2023-42753}
 - x86/microcode: Stop reprobing mitigations after late microcode load (Boris Ostrovsky) [Orabug:
 35818857] {CVE-2023-20569}
 - objtool/x86: Fix SRSO mess (Peter Zijlstra) [Orabug: 35818857] {CVE-2023-20569}
 - x86/srso: Correct the mitigation status when SMT is disabled (Borislav Petkov (AMD)) [Orabug: 35818857] {CVE-2023-20569}
 - objtool/x86: Fixup frame-pointer vs rethunk (Peter Zijlstra) [Orabug: 35818857] {CVE-2023-20569}
 - x86/srso: Disable the mitigation on unaffected configurations (Borislav Petkov (AMD)) [Orabug:
 35818857] {CVE-2023-20569}
 - x86/retpoline: Don't clobber RFLAGS during srso_safe_ret() (Sean Christopherson) [Orabug: 35818857] {CVE-2023-20569}
 - x86/srso: Explain the untraining sequences a bit more (Borislav Petkov (AMD)) [Orabug: 35818857] {CVE-2023-20569}
 - x86/cpu: Cleanup the untrain mess (Peter Zijlstra) [Orabug: 35818857] {CVE-2023-20569}
 - x86/cpu: Rename srso_(.*)_alias to srso_alias_\1 (Peter Zijlstra) [Orabug: 35818857] {CVE-2023-20569}
 - x86/cpu: Rename original retbleed methods (Peter Zijlstra) [Orabug: 35818857] {CVE-2023-20569}
 - x86/cpu: Clean up SRSO return thunk mess (Peter Zijlstra) [Orabug: 35818857] {CVE-2023-20569}
 - x86/alternative: Make custom return thunk unconditional (Peter Zijlstra) [Orabug: 35818857] {CVE-2023-20569}
 - x86/cpu: Fix up srso_safe_ret() and __x86_return_thunk() (Peter Zijlstra) [Orabug: 35818857] {CVE-2023-20569}
 - x86/cpu: Fix __x86_return_thunk symbol type (Peter Zijlstra) [Orabug: 35818857] {CVE-2023-20569}
 - x86/srso: Fix build breakage with the LLVM linker (Nick Desaulniers) [Orabug: 35818857] {CVE-2023-20569}
 - x86/srso: Tie SBPB bit setting to microcode patch detection (Borislav Petkov (AMD)) [Orabug: 35818857] {CVE-2023-20569}
 - x86/srso: Fix return thunks in generated code (Josh Poimboeuf) [Orabug: 35818857] {CVE-2023-20569}
 - x86/srso: Add IBPB on VMEXIT (Borislav Petkov (AMD)) [Orabug: 35818857] {CVE-2023-20569}
 - x86/srso: Add IBPB (Borislav Petkov (AMD)) [Orabug: 35818857] {CVE-2023-20569}
 - x86/srso: Add SRSO_NO support (Borislav Petkov (AMD)) [Orabug: 35818857] {CVE-2023-20569}
 - x86/srso: Add IBPB_BRTYPE support (Borislav Petkov (AMD)) [Orabug: 35818857] {CVE-2023-20569}
 - x86/srso: Add a Speculative RAS Overflow mitigation (Borislav Petkov (AMD)) [Orabug: 35818857] {CVE-2023-20569}
 - rds: Fix lack of reentrancy for connection reset with dst addr zero (Hakon Bugge) [Orabug: 35819522] {CVE-2023-22024}
 - x86/CPU/AMD: Fix the DIV(0) initial fix attempt (Borislav Petkov (AMD)) [Orabug: 35776936] {CVE-2023-20588}
 - x86/CPU/AMD: Do not leak quotient data after a division by 0 (Borislav Petkov (AMD)) [Orabug: 35776936] {CVE-2023-20588}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://linux.oracle.com/errata/ELSA-2023-12874.html

Plugin Details

Severity: High

ID: 183034

File Name: oraclelinux_ELSA-2023-12874.nasl

Version: 1.3

Type: local

Agent: unix

Published: 10/13/2023

Updated: 10/22/2024

Supported Sensors: Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2023-42753

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:oracle:linux:8::baseos_latest, p-cpe:/a:oracle:linux:kernel-uek-debug-devel, p-cpe:/a:oracle:linux:perf, cpe:/o:oracle:linux:7, cpe:/o:oracle:linux:8, p-cpe:/a:oracle:linux:kernel-uek-debug, p-cpe:/a:oracle:linux:kernel-uek-devel, p-cpe:/a:oracle:linux:kernel-uek-doc, p-cpe:/a:oracle:linux:python-perf, cpe:/a:oracle:linux:8::uekr6, cpe:/o:oracle:linux:8:8:baseos_patch, cpe:/a:oracle:linux:7::uekr6, p-cpe:/a:oracle:linux:kernel-uek-tools, p-cpe:/a:oracle:linux:kernel-uek-tools-libs, p-cpe:/a:oracle:linux:kernel-uek

Required KB Items: Host/OracleLinux, Host/RedHat/release, Host/RedHat/rpm-list, Host/local_checks_enabled

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/13/2023

Vulnerability Publication Date: 8/3/2023

Reference Information

CVE: CVE-2023-20569, CVE-2023-20588, CVE-2023-22024, CVE-2023-42753, CVE-2023-5090