7.8 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
6.5 Medium
AI Score
Confidence
Low
0.015 Low
EPSS
Percentile
87.0%
The remote host is missing an update for the Debian
# SPDX-FileCopyrightText: 2012 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("1.3.6.1.4.1.25623.1.0.70689");
script_cve_id("CVE-2011-4528", "CVE-2011-4869");
script_tag(name:"creation_date", value:"2012-02-11 08:15:52 +0000 (Sat, 11 Feb 2012)");
script_version("2024-02-01T14:37:10+0000");
script_tag(name:"last_modification", value:"2024-02-01 14:37:10 +0000 (Thu, 01 Feb 2024)");
script_tag(name:"cvss_base", value:"7.8");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:C");
script_name("Debian: Security Advisory (DSA-2370-1)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2012 Greenbone AG");
script_family("Debian Local Security Checks");
script_dependencies("gather-package-list.nasl");
script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages", re:"ssh/login/release=DEB(5|6)");
script_xref(name:"Advisory-ID", value:"DSA-2370-1");
script_xref(name:"URL", value:"https://www.debian.org/security/2011/DSA-2370-1");
script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-2370");
script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'unbound' package(s) announced via the DSA-2370-1 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"It was discovered that Unbound, a recursive DNS resolver, would crash when processing certain malformed DNS responses from authoritative DNS servers, leading to denial of service.
CVE-2011-4528
Unbound attempts to free unallocated memory during processing of duplicate CNAME records in a signed zone.
CVE-2011-4869
Unbound does not properly process malformed responses which lack expected NSEC3 records.
For the oldstable distribution (lenny), these problems have been fixed in version 1.4.6-1~lenny2.
For the stable distribution (squeeze), these problems have been fixed in version 1.4.6-1+squeeze2.
For the testing distribution (wheezy) and the unstable distribution (sid), these problems have been fixed in version 1.4.14-1.
We recommend that you upgrade your unbound packages.");
script_tag(name:"affected", value:"'unbound' package(s) on Debian 5, Debian 6.");
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-deb.inc");
release = dpkg_get_ssh_release();
if(!release)
exit(0);
res = "";
report = "";
if(release == "DEB5") {
if(!isnull(res = isdpkgvuln(pkg:"libunbound-dev", ver:"1.4.6-1~lenny2", rls:"DEB5"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libunbound2", ver:"1.4.6-1~lenny2", rls:"DEB5"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"unbound", ver:"1.4.6-1~lenny2", rls:"DEB5"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"unbound-host", ver:"1.4.6-1~lenny2", rls:"DEB5"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
if(release == "DEB6") {
if(!isnull(res = isdpkgvuln(pkg:"libunbound-dev", ver:"1.4.6-1+squeeze2", rls:"DEB6"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libunbound2", ver:"1.4.6-1+squeeze2", rls:"DEB6"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"unbound", ver:"1.4.6-1+squeeze2", rls:"DEB6"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"unbound-host", ver:"1.4.6-1+squeeze2", rls:"DEB6"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);