SUSE: Security Advisory (SUSE-SU-2020:3225-1)

# SPDX-FileCopyrightText: 2021 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("1.3.6.1.4.1.25623.1.1.4.2020.3225.1");
  script_cve_id("CVE-2020-0429", "CVE-2020-0431", "CVE-2020-14381", "CVE-2020-14386", "CVE-2020-25212");
  script_tag(name:"creation_date", value:"2021-04-19 00:00:00 +0000 (Mon, 19 Apr 2021)");
  script_version("2024-02-02T14:37:50+0000");
  script_tag(name:"last_modification", value:"2024-02-02 14:37:50 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"7.2");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-09-22 18:24:17 +0000 (Tue, 22 Sep 2020)");

  script_name("SUSE: Security Advisory (SUSE-SU-2020:3225-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2021 Greenbone AG");
  script_family("SuSE Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/suse_sles", "ssh/login/rpms", re:"ssh/login/release=(SLES12\.0SP2|SLES12\.0SP3)");

  script_xref(name:"Advisory-ID", value:"SUSE-SU-2020:3225-1");
  script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2020/suse-su-20203225-1/");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'Linux Kernel (Live Patch 29 for SLE 12 SP3)' package(s) announced via the SUSE-SU-2020:3225-1 advisory.");

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

  script_tag(name:"insight", value:"This update for the Linux Kernel 4.4.180-94_107 fixes several issues.

The following security issues were fixed:

CVE-2020-0429: In l2tp_session_delete and related functions of
 l2tp_core.c, there is possible memory corruption due to a use after
 free. This could lead to local escalation of privilege with system
 execution privileges needed. User interaction is not needed for
 exploitation. (bsc#1176724)

CVE-2020-14381: Fixed a use-after-free in the fast user mutex (futex)
 wait operation, which could have lead to memory corruption and possibly
 privilege escalation (bsc#1176011).

CVE-2020-0431: In kbd_keycode of keyboard.c, there is a possible out of
 bounds write due to a missing bounds check. This could lead to local
 escalation of privilege with no additional execution privileges needed.
 User interaction is not needed for exploitation. (bsc#1176722)

CVE-2020-25212: A TOCTOU mismatch in the NFS client code could be used
 by local attackers to corrupt memory or possibly have unspecified other
 impact because a size check is in fs/nfs/nfs4proc.c instead of
 fs/nfs/nfs4xdr.c (bsc#1176381).

CVE-2020-14386: Fixed a memory corruption which could have lead to an
 attacker gaining root privileges from unprivileged processes. The
 highest threat from this vulnerability is to data confidentiality and
 integrity (bsc#1176069).");

  script_tag(name:"affected", value:"'Linux Kernel (Live Patch 29 for SLE 12 SP3)' package(s) on SUSE Linux Enterprise Server 12-SP2, SUSE Linux Enterprise Server 12-SP3, SUSE Linux Enterprise Server for SAP 12-SP2, SUSE Linux Enterprise Server for SAP 12-SP3.");

  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 == "SLES12.0SP2") {

  if(!isnull(res = isrpmvuln(pkg:"kgraft-patch-4_4_121-92_125-default", rpm:"kgraft-patch-4_4_121-92_125-default~8~2.2", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kgraft-patch-4_4_121-92_129-default", rpm:"kgraft-patch-4_4_121-92_129-default~5~2.2", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kgraft-patch-4_4_121-92_135-default", rpm:"kgraft-patch-4_4_121-92_135-default~3~2.2", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kgraft-patch-4_4_121-92_138-default", rpm:"kgraft-patch-4_4_121-92_138-default~3~2.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

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

if(release == "SLES12.0SP3") {

  if(!isnull(res = isrpmvuln(pkg:"kgraft-patch-4_4_180-94_107-default", rpm:"kgraft-patch-4_4_180-94_107-default~8~2.2", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kgraft-patch-4_4_180-94_107-default-debuginfo", rpm:"kgraft-patch-4_4_180-94_107-default-debuginfo~8~2.2", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kgraft-patch-4_4_180-94_113-default", rpm:"kgraft-patch-4_4_180-94_113-default~7~2.2", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kgraft-patch-4_4_180-94_113-default-debuginfo", rpm:"kgraft-patch-4_4_180-94_113-default-debuginfo~7~2.2", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kgraft-patch-4_4_180-94_116-default", rpm:"kgraft-patch-4_4_180-94_116-default~4~2.2", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kgraft-patch-4_4_180-94_116-default-debuginfo", rpm:"kgraft-patch-4_4_180-94_116-default-debuginfo~4~2.2", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kgraft-patch-4_4_180-94_121-default", rpm:"kgraft-patch-4_4_180-94_121-default~3~2.2", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kgraft-patch-4_4_180-94_121-default-debuginfo", rpm:"kgraft-patch-4_4_180-94_121-default-debuginfo~3~2.2", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kgraft-patch-4_4_180-94_124-default", rpm:"kgraft-patch-4_4_180-94_124-default~3~2.2", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kgraft-patch-4_4_180-94_124-default-debuginfo", rpm:"kgraft-patch-4_4_180-94_124-default-debuginfo~3~2.2", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kgraft-patch-4_4_180-94_127-default", rpm:"kgraft-patch-4_4_180-94_127-default~3~2.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kgraft-patch-4_4_180-94_127-default-debuginfo", rpm:"kgraft-patch-4_4_180-94_127-default-debuginfo~3~2.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

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

exit(0);