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CentOS Update for kernel CESA-2013:0621 centos5

🗓️ 15 Mar 2013 00:00:00Reported by Copyright (C) 2013 Greenbone AGType 
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CentOS Update for kernel CESA-2013:0621 centos5. The remote host is missing an update for the 'kernel' package(s) announced via the referenced advisory. It fixes a flaw in file permission checks and a race condition in ptrace implementation

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# SPDX-FileCopyrightText: 2013 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_xref(name:"URL", value:"http://lists.centos.org/pipermail/centos-announce/2013-March/019644.html");
  script_oid("1.3.6.1.4.1.25623.1.0.881684");
  script_version("2026-04-24T06:23:04+0000");
  script_tag(name:"last_modification", value:"2026-04-24 06:23:04 +0000 (Fri, 24 Apr 2026)");
  script_tag(name:"creation_date", value:"2013-03-15 09:51:52 +0530 (Fri, 15 Mar 2013)");
  script_cve_id("CVE-2013-0268", "CVE-2013-0871");
  script_tag(name:"cvss_base", value:"6.9");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:M/Au:N/C:C/I:C/A:C");
  script_xref(name:"CESA", value:"2013:0621");
  script_name("CentOS Update for kernel CESA-2013:0621 centos5");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'kernel'
  package(s) announced via the referenced advisory.");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2013 Greenbone AG");
  script_family("CentOS Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/centos", "ssh/login/rpms", re:"ssh/login/release=CentOS5");
  script_tag(name:"affected", value:"kernel on CentOS 5");
  script_tag(name:"solution", value:"Please install the updated packages.");
  script_tag(name:"insight", value:"The kernel packages contain the Linux kernel, the core of any Linux
  operating system.

  This update fixes the following security issues:

  * A flaw was found in the way file permission checks for the
   files were performed in restricted root environments
  (for example, when using a capability-based security model). A local user
  with the ability to write to these files could use this flaw to escalate
  their privileges to kernel level, for example, by writing to the
  SYSENTER_EIP_MSR register. (CVE-2013-0268, Important)

  * A race condition was found in the way the Linux kernel's ptrace
  implementation handled PTRACE_SETREGS requests when the debuggee was woken
  due to a SIGKILL signal instead of being stopped. A local, unprivileged
  user could use this flaw to escalate their privileges. (CVE-2013-0871,
  Important)

  Users should upgrade to these updated packages, which contain backported
  patches to correct these issues. The system must be rebooted for this
  update to take effect.");
  script_tag(name:"qod_type", value:"package");
  script_tag(name:"solution_type", value:"VendorFix");
  exit(0);
}

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

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

res = "";

if(release == "CentOS5")
{

  if ((res = isrpmvuln(pkg:"kernel", rpm:"kernel~2.6.18~348.3.1.el5", rls:"CentOS5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"kernel-debug", rpm:"kernel-debug~2.6.18~348.3.1.el5", rls:"CentOS5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"kernel-debug-devel", rpm:"kernel-debug-devel~2.6.18~348.3.1.el5", rls:"CentOS5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"kernel-devel", rpm:"kernel-devel~2.6.18~348.3.1.el5", rls:"CentOS5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"kernel-doc", rpm:"kernel-doc~2.6.18~348.3.1.el5", rls:"CentOS5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"kernel-headers", rpm:"kernel-headers~2.6.18~348.3.1.el5", rls:"CentOS5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"kernel-PAE", rpm:"kernel-PAE~2.6.18~348.3.1.el5", rls:"CentOS5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"kernel-PAE-devel", rpm:"kernel-PAE-devel~2.6.18~348.3.1.el5", rls:"CentOS5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"kernel-xen", rpm:"kernel-xen~2.6.18~348.3.1.el5", rls:"CentOS5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"kernel-xen-devel", rpm:"kernel-xen-devel~2.6.18~348.3.1.el5", rls:"CentOS5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if (__pkg_match) exit(99);
  exit(0);
}

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24 Apr 2026 00:00Current
6.7Medium risk
Vulners AI Score6.7
CVSS 26.9
EPSS0.01557
35