NULL Dereference (CVE-2006-4334)
A stack modification vulnerability (where a stack buffer can be modified out of bounds, but not in the traditional stack overrun sense) exists in the LZH decompression support of gzip.
(CVE-2006-4335)
A .bss buffer underflow exists in gzipâs pack support, where a loop from build_tree() does not enforce any lower bound while constructing the prefix table. (CVE-2006-4336)
A .bss buffer overflow vulnerability exists in gzipâs LZH support, due to itâs inability to handle exceptional input in the make_table() function, a pathological decoding table can be constructed in such a way as to generate counts so high that the rapid growth of nextcode
exceeds the size of the table[] buffer. (CVE-2006-4337)
A possible infinite loop exists in code from unlzh.c for traversing the branches of a tree structure. This makes it possible to disrupt the operation of automated systems relying on gzip for data decompression, resulting in a minor DoS. (CVE-2006-4338) Updated packages have been patched to address these issues.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Mandrake Linux Security Advisory MDKSA-2006:167.
# The text itself is copyright (C) Mandriva S.A.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(24553);
script_version("1.16");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");
script_cve_id("CVE-2006-4334", "CVE-2006-4335", "CVE-2006-4336", "CVE-2006-4337", "CVE-2006-4338");
script_xref(name:"MDKSA", value:"2006:167");
script_name(english:"Mandrake Linux Security Advisory : gzip (MDKSA-2006:167)");
script_summary(english:"Checks rpm output for the updated package");
script_set_attribute(
attribute:"synopsis",
value:"The remote Mandrake Linux host is missing a security update."
);
script_set_attribute(
attribute:"description",
value:
"NULL Dereference (CVE-2006-4334)
A stack modification vulnerability (where a stack buffer can be
modified out of bounds, but not in the traditional stack overrun
sense) exists in the LZH decompression support of gzip.
(CVE-2006-4335)
A .bss buffer underflow exists in gzip's pack support, where a loop
from build_tree() does not enforce any lower bound while constructing
the prefix table. (CVE-2006-4336)
A .bss buffer overflow vulnerability exists in gzip's LZH support, due
to it's inability to handle exceptional input in the make_table()
function, a pathological decoding table can be constructed in such a
way as to generate counts so high that the rapid growth of `nextcode`
exceeds the size of the table[] buffer. (CVE-2006-4337)
A possible infinite loop exists in code from unlzh.c for traversing
the branches of a tree structure. This makes it possible to disrupt
the operation of automated systems relying on gzip for data
decompression, resulting in a minor DoS. (CVE-2006-4338) Updated
packages have been patched to address these issues."
);
script_set_attribute(attribute:"solution", value:"Update the affected gzip package.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:gzip");
script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2006");
script_set_attribute(attribute:"patch_publication_date", value:"2006/09/20");
script_set_attribute(attribute:"plugin_publication_date", value:"2007/02/18");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2007-2021 Tenable Network Security, Inc.");
script_family(english:"Mandriva Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/Mandrake/release", "Host/Mandrake/rpm-list");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Mandrake/release")) audit(AUDIT_OS_NOT, "Mandriva / Mandake Linux");
if (!get_kb_item("Host/Mandrake/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^(amd64|i[3-6]86|x86_64)$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Mandriva / Mandrake Linux", cpu);
flag = 0;
if (rpm_check(release:"MDK2006.0", reference:"gzip-1.2.4a-15.3.20060mdk", yank:"mdk")) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
else security_hole(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");