RedHat Security Advisory RHSA-2009:1438

# SPDX-FileCopyrightText: 2009 E-Soft Inc.
# 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 OR GPL-3.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.64835");
  script_version("2024-03-21T05:06:54+0000");
  script_tag(name:"last_modification", value:"2024-03-21 05:06:54 +0000 (Thu, 21 Mar 2024)");
  script_tag(name:"creation_date", value:"2009-09-15 22:46:32 +0200 (Tue, 15 Sep 2009)");
  script_cve_id("CVE-2009-1883", "CVE-2009-1895", "CVE-2009-2847", "CVE-2009-2848");
  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_name("RedHat Security Advisory RHSA-2009:1438");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2009 E-Soft Inc.");
  script_family("Red Hat Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/rhel", "ssh/login/rpms", re:"ssh/login/release=RHENT_4");
  script_tag(name:"solution", value:"Please note that this update is available via
Red Hat Network.  To use Red Hat Network, launch the Red
Hat Update Agent with the following command: up2date");
  script_tag(name:"summary", value:"The remote host is missing updates to the Linux kernel announced in
advisory RHSA-2009:1438.

This update fixes the following security issues:

  * the ADDR_COMPAT_LAYOUT and MMAP_PAGE_ZERO flags were not cleared when a
setuid or setgid program was executed. A local, unprivileged user could use
this flaw to bypass the mmap_min_addr protection mechanism and perform a
NULL pointer dereference attack, or bypass the Address Space Layout
Randomization (ASLR) security feature. (CVE-2009-1895, Important)

  * it was discovered that, when executing a new process, the clear_child_tid
pointer in the Linux kernel is not cleared. If this pointer points to a
writable portion of the memory of the new program, the kernel could corrupt
four bytes of memory, possibly leading to a local denial of service or
privilege escalation. (CVE-2009-2848, Important)

  * Solar Designer reported a missing capability check in the z90crypt driver
in the Linux kernel. This missing check could allow a local user with an
effective user ID (euid) of 0 to bypass intended capability restrictions.
(CVE-2009-1883, Moderate)

  * a flaw was found in the way the do_sigaltstack() function in the Linux
kernel copies the stack_t structure to user-space. On 64-bit machines, this
flaw could lead to a four-byte information leak. (CVE-2009-2847, Moderate)");
  script_tag(name:"qod_type", value:"package");
  script_tag(name:"solution_type", value:"VendorFix");
  script_xref(name:"URL", value:"http://rhn.redhat.com/errata/RHSA-2009-1438.html");
  script_xref(name:"URL", value:"http://www.redhat.com/security/updates/classification/#important");

  exit(0);
}

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

res = "";
report = "";
if ((res = isrpmvuln(pkg:"kernel", rpm:"kernel~2.6.9~89.0.11.EL", rls:"RHENT_4")) != NULL) {
    report += res;
}
if ((res = isrpmvuln(pkg:"kernel-debuginfo", rpm:"kernel-debuginfo~2.6.9~89.0.11.EL", rls:"RHENT_4")) != NULL) {
    report += res;
}
if ((res = isrpmvuln(pkg:"kernel-devel", rpm:"kernel-devel~2.6.9~89.0.11.EL", rls:"RHENT_4")) != NULL) {
    report += res;
}
if ((res = isrpmvuln(pkg:"kernel-hugemem", rpm:"kernel-hugemem~2.6.9~89.0.11.EL", rls:"RHENT_4")) != NULL) {
    report += res;
}
if ((res = isrpmvuln(pkg:"kernel-hugemem-devel", rpm:"kernel-hugemem-devel~2.6.9~89.0.11.EL", rls:"RHENT_4")) != NULL) {
    report += res;
}
if ((res = isrpmvuln(pkg:"kernel-smp", rpm:"kernel-smp~2.6.9~89.0.11.EL", rls:"RHENT_4")) != NULL) {
    report += res;
}
if ((res = isrpmvuln(pkg:"kernel-smp-devel", rpm:"kernel-smp-devel~2.6.9~89.0.11.EL", rls:"RHENT_4")) != NULL) {
    report += res;
}
if ((res = isrpmvuln(pkg:"kernel-xenU", rpm:"kernel-xenU~2.6.9~89.0.11.EL", rls:"RHENT_4")) != NULL) {
    report += res;
}
if ((res = isrpmvuln(pkg:"kernel-xenU-devel", rpm:"kernel-xenU-devel~2.6.9~89.0.11.EL", rls:"RHENT_4")) != NULL) {
    report += res;
}
if ((res = isrpmvuln(pkg:"kernel-largesmp", rpm:"kernel-largesmp~2.6.9~89.0.11.EL", rls:"RHENT_4")) != NULL) {
    report += res;
}
if ((res = isrpmvuln(pkg:"kernel-largesmp-devel", rpm:"kernel-largesmp-devel~2.6.9~89.0.11.EL", rls:"RHENT_4")) != NULL) {
    report += res;
}
if ((res = isrpmvuln(pkg:"kernel-doc", rpm:"kernel-doc~2.6.9~89.0.11.EL", rls:"RHENT_4")) != NULL) {
    report += res;
}

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