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openvasCopyright (C) 2023 Greenbone AGOPENVAS:13614125623111020230242
HistoryJul 27, 2023 - 12:00 a.m.

Mageia: Security Advisory (MGASA-2023-0242)

2023-07-2700:00:00
Copyright (C) 2023 Greenbone AG
plugins.openvas.org
6
mageia 8
security advisory
cve-2023-20593
linux kernel
amd
microcode
zen 2
cpu security
vulnerability fix

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

7.4 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

23.8%

The remote host is missing an update for the

# SPDX-FileCopyrightText: 2023 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.1.10.2023.0242");
  script_cve_id("CVE-2023-20593");
  script_tag(name:"creation_date", value:"2023-07-27 04:12:36 +0000 (Thu, 27 Jul 2023)");
  script_version("2024-02-02T05:06:10+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:10 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"4.6");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:S/C:C/I:N/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2023-08-01 19:29:20 +0000 (Tue, 01 Aug 2023)");

  script_name("Mageia: Security Advisory (MGASA-2023-0242)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2023 Greenbone AG");
  script_family("Mageia Linux Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/mageia_linux", "ssh/login/release", re:"ssh/login/release=MAGEIA8");

  script_xref(name:"Advisory-ID", value:"MGASA-2023-0242");
  script_xref(name:"URL", value:"https://advisories.mageia.org/MGASA-2023-0242.html");
  script_xref(name:"URL", value:"https://bugs.mageia.org/show_bug.cgi?id=32139");
  script_xref(name:"URL", value:"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.121");
  script_xref(name:"URL", value:"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.122");
  script_xref(name:"URL", value:"https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7008.html");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'kernel, kmod-virtualbox, kmod-xtables-addons' package(s) announced via the MGASA-2023-0242 advisory.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"This kernel update is based on upstream 5.15.122 and fixes at least
the following security issue:

Under specific microarchitectural circumstances, a register in 'Zen 2'
CPUs may not be written to 0 correctly. This may cause data from another
process and/or thread to be stored in the YMM register, which may allow
an attacker to potentially access sensitive information (CVE-2023-20593,
also known as Zenbleed)

This update adds a kernel-side mitigation for this issue to protect users
until Amd gets their fixed microcode / AGESA updates out for all affected
CPUs. The fixed microcode for Amd EPYC gen2 is available in the
microcode-0.20230613-2.mga8.nonfree package. For other affected CPUs, see
the referenced amd.com url that has info about estimated microcode update
timelines for various CPUs.

For other upstream fixes in this update, see the referenced changelogs.");

  script_tag(name:"affected", value:"'kernel, kmod-virtualbox, kmod-xtables-addons' package(s) on Mageia 8.");

  script_tag(name:"solution", value:"Please install the updated package(s).");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-rpm.inc");

release = rpm_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "MAGEIA8") {

  if(!isnull(res = isrpmvuln(pkg:"bpftool", rpm:"bpftool~5.15.122~1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"cpupower", rpm:"cpupower~5.15.122~1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"cpupower-devel", rpm:"cpupower-devel~5.15.122~1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel", rpm:"kernel~5.15.122~1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-desktop-5.15.122-1.mga8", rpm:"kernel-desktop-5.15.122-1.mga8~1~1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-desktop-devel-5.15.122-1.mga8", rpm:"kernel-desktop-devel-5.15.122-1.mga8~1~1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-desktop-devel-latest", rpm:"kernel-desktop-devel-latest~5.15.122~1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-desktop-latest", rpm:"kernel-desktop-latest~5.15.122~1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-desktop586-5.15.122-1.mga8", rpm:"kernel-desktop586-5.15.122-1.mga8~1~1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-desktop586-devel-5.15.122-1.mga8", rpm:"kernel-desktop586-devel-5.15.122-1.mga8~1~1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-desktop586-devel-latest", rpm:"kernel-desktop586-devel-latest~5.15.122~1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-desktop586-latest", rpm:"kernel-desktop586-latest~5.15.122~1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-doc", rpm:"kernel-doc~5.15.122~1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-server-5.15.122-1.mga8", rpm:"kernel-server-5.15.122-1.mga8~1~1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-server-devel-5.15.122-1.mga8", rpm:"kernel-server-devel-5.15.122-1.mga8~1~1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-server-devel-latest", rpm:"kernel-server-devel-latest~5.15.122~1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-server-latest", rpm:"kernel-server-latest~5.15.122~1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-source-5.15.122-1.mga8", rpm:"kernel-source-5.15.122-1.mga8~1~1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-source-latest", rpm:"kernel-source-latest~5.15.122~1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-userspace-headers", rpm:"kernel-userspace-headers~5.15.122~1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kmod-virtualbox", rpm:"kmod-virtualbox~7.0.10~1.1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kmod-xtables-addons", rpm:"kmod-xtables-addons~3.23~1.23.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"lib64bpf-devel", rpm:"lib64bpf-devel~5.15.122~1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"lib64bpf0", rpm:"lib64bpf0~5.15.122~1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libbpf-devel", rpm:"libbpf-devel~5.15.122~1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libbpf0", rpm:"libbpf0~5.15.122~1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"perf", rpm:"perf~5.15.122~1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"virtualbox-kernel-5.15.122-desktop-1.mga8", rpm:"virtualbox-kernel-5.15.122-desktop-1.mga8~7.0.10~1.1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"virtualbox-kernel-5.15.122-server-1.mga8", rpm:"virtualbox-kernel-5.15.122-server-1.mga8~7.0.10~1.1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"virtualbox-kernel-desktop-latest", rpm:"virtualbox-kernel-desktop-latest~7.0.10~1.1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"virtualbox-kernel-server-latest", rpm:"virtualbox-kernel-server-latest~7.0.10~1.1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xtables-addons-kernel-5.15.122-desktop-1.mga8", rpm:"xtables-addons-kernel-5.15.122-desktop-1.mga8~3.23~1.23.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xtables-addons-kernel-5.15.122-desktop586-1.mga8", rpm:"xtables-addons-kernel-5.15.122-desktop586-1.mga8~3.23~1.23.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xtables-addons-kernel-5.15.122-server-1.mga8", rpm:"xtables-addons-kernel-5.15.122-server-1.mga8~3.23~1.23.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xtables-addons-kernel-desktop-latest", rpm:"xtables-addons-kernel-desktop-latest~3.23~1.23.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xtables-addons-kernel-desktop586-latest", rpm:"xtables-addons-kernel-desktop586-latest~3.23~1.23.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xtables-addons-kernel-server-latest", rpm:"xtables-addons-kernel-server-latest~3.23~1.23.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

exit(0);

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

7.4 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

23.8%