Vulnerabilities > CVE-2012-3571 - Improper Restriction of Operations Within the Bounds of A Memory Buffer vulnerability in multiple products
Attack vector
ADJACENT_NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
COMPLETE Summary
ISC DHCP 4.1.2 through 4.2.4 and 4.1-ESV before 4.1-ESV-R6 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a malformed client identifier.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 28 | |
| OS | 3 | |
| OS | 2 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Buffer Overflow via Environment Variables This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
- Overflow Buffers Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
- Client-side Injection-induced Buffer Overflow This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
- Filter Failure through Buffer Overflow In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
- MIME Conversion An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
Exploit-Db
| description | ISC DHCP 4.x Multiple Denial of Service Vulnerabilities. CVE-2012-3571. Dos exploit for linux platform |
| id | EDB-ID:37538 |
| last seen | 2016-02-04 |
| modified | 2012-07-25 |
| published | 2012-07-25 |
| reporter | Markus Hietava |
| source | https://www.exploit-db.com/download/37538/ |
| title | ISC DHCP 4.x Multiple Denial of Service Vulnerabilities |
Nessus
NASL family SuSE Local Security Checks NASL id OPENSUSE-2012-522.NASL description This update of dhcp fixed multiple security vulnerabilities (memory leak, Denial of Service). last seen 2020-06-05 modified 2014-06-13 plugin id 74718 published 2014-06-13 reporter This script is Copyright (C) 2014-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/74718 title openSUSE Security Update : dhcp (openSUSE-SU-2012:1006-1) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from openSUSE Security Update openSUSE-2012-522. # # The text description of this plugin is (C) SUSE LLC. # include("compat.inc"); if (description) { script_id(74718); script_version("1.6"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04"); script_cve_id("CVE-2012-3570", "CVE-2012-3571", "CVE-2012-3954"); script_name(english:"openSUSE Security Update : dhcp (openSUSE-SU-2012:1006-1)"); script_summary(english:"Check for the openSUSE-2012-522 patch"); script_set_attribute( attribute:"synopsis", value:"The remote openSUSE host is missing a security update." ); script_set_attribute( attribute:"description", value: "This update of dhcp fixed multiple security vulnerabilities (memory leak, Denial of Service)." ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.novell.com/show_bug.cgi?id=721829" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.novell.com/show_bug.cgi?id=739696" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.novell.com/show_bug.cgi?id=762108" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.novell.com/show_bug.cgi?id=767661" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.novell.com/show_bug.cgi?id=770236" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.novell.com/show_bug.cgi?id=772924" ); script_set_attribute( attribute:"see_also", value:"https://lists.opensuse.org/opensuse-updates/2012-08/msg00030.html" ); script_set_attribute(attribute:"solution", value:"Update the affected dhcp packages."); script_set_cvss_base_vector("CVSS2#AV:A/AC:L/Au:N/C:N/I:N/A:C"); script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available"); script_set_attribute(attribute:"exploit_available", value:"true"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:dhcp"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:dhcp-client"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:dhcp-client-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:dhcp-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:dhcp-debugsource"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:dhcp-devel"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:dhcp-relay"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:dhcp-relay-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:dhcp-server"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:dhcp-server-debuginfo"); script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:12.1"); script_set_attribute(attribute:"vuln_publication_date", value:"2012/07/25"); script_set_attribute(attribute:"patch_publication_date", value:"2012/08/09"); script_set_attribute(attribute:"plugin_publication_date", value:"2014/06/13"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2014-2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"SuSE Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu"); 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); release = get_kb_item("Host/SuSE/release"); if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE"); if (release !~ "^(SUSE12\.1)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "12.1", release); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); ourarch = get_kb_item("Host/cpu"); if (!ourarch) audit(AUDIT_UNKNOWN_ARCH); if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch); flag = 0; if ( rpm_check(release:"SUSE12.1", reference:"dhcp-4.2.4.P1-0.6.10.1") ) flag++; if ( rpm_check(release:"SUSE12.1", reference:"dhcp-client-4.2.4.P1-0.6.10.1") ) flag++; if ( rpm_check(release:"SUSE12.1", reference:"dhcp-client-debuginfo-4.2.4.P1-0.6.10.1") ) flag++; if ( rpm_check(release:"SUSE12.1", reference:"dhcp-debuginfo-4.2.4.P1-0.6.10.1") ) flag++; if ( rpm_check(release:"SUSE12.1", reference:"dhcp-debugsource-4.2.4.P1-0.6.10.1") ) flag++; if ( rpm_check(release:"SUSE12.1", reference:"dhcp-devel-4.2.4.P1-0.6.10.1") ) flag++; if ( rpm_check(release:"SUSE12.1", reference:"dhcp-relay-4.2.4.P1-0.6.10.1") ) flag++; if ( rpm_check(release:"SUSE12.1", reference:"dhcp-relay-debuginfo-4.2.4.P1-0.6.10.1") ) flag++; if ( rpm_check(release:"SUSE12.1", reference:"dhcp-server-4.2.4.P1-0.6.10.1") ) flag++; if ( rpm_check(release:"SUSE12.1", reference:"dhcp-server-debuginfo-4.2.4.P1-0.6.10.1") ) flag++; if (flag) { if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get()); else security_warning(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "dhcp / dhcp-client / dhcp-client-debuginfo / dhcp-debuginfo / etc"); }NASL family Fedora Local Security Checks NASL id FEDORA_2012-11110.NASL description This is security bugfix release fixing several vulnerabilities. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-03-17 modified 2012-08-07 plugin id 61442 published 2012-08-07 reporter This script is Copyright (C) 2012-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/61442 title Fedora 16 : dhcp-4.2.3-11.P2.fc16 (2012-11110) NASL family Scientific Linux Local Security Checks NASL id SL_20120803_DHCP_ON_SL6_X.NASL description The Dynamic Host Configuration Protocol (DHCP) is a protocol that allows individual devices on an IP network to get their own network configuration information, including an IP address, a subnet mask, and a broadcast address. A denial of service flaw was found in the way the dhcpd daemon handled zero-length client identifiers. A remote attacker could use this flaw to send a specially crafted request to dhcpd, possibly causing it to enter an infinite loop and consume an excessive amount of CPU time. (CVE-2012-3571) Two memory leak flaws were found in the dhcpd daemon. A remote attacker could use these flaws to cause dhcpd to exhaust all available memory by sending a large number of DHCP requests. (CVE-2012-3954) Users of DHCP should upgrade to these updated packages, which contain backported patches to correct these issues. After installing this update, all DHCP servers will be restarted automatically. last seen 2020-03-18 modified 2012-08-06 plugin id 61428 published 2012-08-06 reporter This script is Copyright (C) 2012-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/61428 title Scientific Linux Security Update : dhcp on SL6.x i386/x86_64 (20120803) NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2012-1140.NASL description Updated dhcp packages that fix one security issue are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. The Dynamic Host Configuration Protocol (DHCP) is a protocol that allows individual devices on an IP network to get their own network configuration information, including an IP address, a subnet mask, and a broadcast address. A denial of service flaw was found in the way the dhcpd daemon handled zero-length client identifiers. A remote attacker could use this flaw to send a specially crafted request to dhcpd, possibly causing it to enter an infinite loop and consume an excessive amount of CPU time. (CVE-2012-3571) Upstream acknowledges Markus Hietava of the Codenomicon CROSS project as the original reporter of this issue. Users of DHCP should upgrade to these updated packages, which contain a backported patch to correct this issue. After installing this update, all DHCP servers will be restarted automatically. last seen 2020-06-01 modified 2020-06-02 plugin id 61400 published 2012-08-03 reporter This script is Copyright (C) 2012-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/61400 title CentOS 5 : dhcp (CESA-2012:1140) NASL family Debian Local Security Checks NASL id DEBIAN_DSA-2516.NASL description Two security vulnerabilities affecting ISC dhcpd, a server for automatic IP address assignment, in Debian have been discovered. - CVE-2012-3571 Markus Hietava of the Codenomicon CROSS project discovered that it is possible to force the server to enter an infinite loop via messages with malformed client identifiers. - CVE-2012-3954 Glen Eustace discovered that DHCP servers running in DHCPv6 mode and possibly DHCPv4 mode suffer of memory leaks while processing messages. An attacker can use this flaw to exhaust resources and perform denial of service attacks. last seen 2020-03-17 modified 2012-07-30 plugin id 60142 published 2012-07-30 reporter This script is Copyright (C) 2012-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/60142 title Debian DSA-2516-1 : isc-dhcp - several vulnerabilities NASL family Debian Local Security Checks NASL id DEBIAN_DSA-2519.NASL description Several security vulnerabilities affecting ISC dhcpd, a server for automatic IP address assignment, have been discovered. Additionally, the latest security update for isc-dhcp, DSA-2516-1, did not properly apply the patches for CVE-2012-3571 and CVE-2012-3954. This has been addressed in this additional update. - CVE-2011-4539 BlueCat Networks discovered that it is possible to crash DHCP servers configured to evaluate requests with regular expressions via crafted DHCP request packets. - CVE-2012-3571 Markus Hietava of the Codenomicon CROSS project discovered that it is possible to force the server to enter an infinite loop via messages with malformed client identifiers. - CVE-2012-3954 Glen Eustace discovered that DHCP servers running in DHCPv6 mode and possibly DHCPv4 mode suffer of memory leaks while processing messages. An attacker can use this flaw to exhaust resources and perform denial of service attacks. last seen 2020-03-17 modified 2012-08-02 plugin id 61382 published 2012-08-02 reporter This script is Copyright (C) 2012-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/61382 title Debian DSA-2519-2 : isc-dhcp - several vulnerabilities NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2012-1141.NASL description Updated dhcp packages that fix three security issues are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The Dynamic Host Configuration Protocol (DHCP) is a protocol that allows individual devices on an IP network to get their own network configuration information, including an IP address, a subnet mask, and a broadcast address. A denial of service flaw was found in the way the dhcpd daemon handled zero-length client identifiers. A remote attacker could use this flaw to send a specially crafted request to dhcpd, possibly causing it to enter an infinite loop and consume an excessive amount of CPU time. (CVE-2012-3571) Two memory leak flaws were found in the dhcpd daemon. A remote attacker could use these flaws to cause dhcpd to exhaust all available memory by sending a large number of DHCP requests. (CVE-2012-3954) Upstream acknowledges Markus Hietava of the Codenomicon CROSS project as the original reporter of CVE-2012-3571, and Glen Eustace of Massey University, New Zealand, as the original reporter of CVE-2012-3954. Users of DHCP should upgrade to these updated packages, which contain backported patches to correct these issues. After installing this update, all DHCP servers will be restarted automatically. last seen 2020-06-01 modified 2020-06-02 plugin id 61437 published 2012-08-07 reporter This script is Copyright (C) 2012-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/61437 title CentOS 6 : dhcp (CESA-2012:1141) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-1519-1.NASL description Markus Hietava discovered that the DHCP server incorrectly handled certain malformed client identifiers. A remote attacker could use this issue to cause DHCP to crash, resulting in a denial of service. (CVE-2012-3571) Glen Eustace discovered that the DHCP server incorrectly handled memory. A remote attacker could use this issue to cause DHCP to crash, resulting in a denial of service. (CVE-2012-3954). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 60137 published 2012-07-27 reporter Ubuntu Security Notice (C) 2012-2019 Canonical, Inc. / NASL script (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/60137 title Ubuntu 11.04 / 11.10 / 12.04 LTS : isc-dhcp vulnerabilities (USN-1519-1) NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-201301-06.NASL description The remote host is affected by the vulnerability described in GLSA-201301-06 (ISC DHCP: Denial of Service) Multiple vulnerabilities have been discovered in ISC DHCP. Please review the CVE identifiers referenced below for details. Impact : The vulnerabilities might allow remote attackers to execute arbitrary code or cause a Denial of Service. Workaround : There is no known workaround at this time. last seen 2020-06-01 modified 2020-06-02 plugin id 63440 published 2013-01-09 reporter This script is Copyright (C) 2013-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/63440 title GLSA-201301-06 : ISC DHCP: Denial of Service NASL family Mandriva Local Security Checks NASL id MANDRIVA_MDVSA-2012-115.NASL description Multiple vulnerabilities has been discovered and corrected in ISC DHCP : An unexpected client identifier parameter can cause the ISC DHCP daemon to segmentation fault when running in DHCPv6 mode, resulting in a denial of service to further client requests. In order to exploit this condition, an attacker must be able to send requests to the DHCP server (CVE-2012-3570). An error in the handling of malformed client identifiers can cause a DHCP server running affected versions (see Impact) to enter a state where further client requests are not processed and the server process loops endlessly, consuming all available CPU cycles. Under normal circumstances this condition should not be triggered, but a non-conforming or malicious client could deliberately trigger it in a vulnerable server. In order to exploit this condition an attacker must be able to send requests to the DHCP server (CVE-2012-3571). Two memory leaks have been found and fixed in ISC DHCP. Both are reproducible when running in DHCPv6 mode (with the -6 command-line argument.) The first leak is confirmed to only affect servers operating in DHCPv6 mode, but based on initial code analysis the second may theoretically affect DHCPv4 servers (though this has not been demonstrated.) (CVE-2012-3954). The updated packages have been upgraded to the latest version (4.2.4-P1) which is not affected by these issues. last seen 2020-06-01 modified 2020-06-02 plugin id 61967 published 2012-09-06 reporter This script is Copyright (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/61967 title Mandriva Linux Security Advisory : dhcp (MDVSA-2012:115) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2012-1141.NASL description Updated dhcp packages that fix three security issues are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The Dynamic Host Configuration Protocol (DHCP) is a protocol that allows individual devices on an IP network to get their own network configuration information, including an IP address, a subnet mask, and a broadcast address. A denial of service flaw was found in the way the dhcpd daemon handled zero-length client identifiers. A remote attacker could use this flaw to send a specially crafted request to dhcpd, possibly causing it to enter an infinite loop and consume an excessive amount of CPU time. (CVE-2012-3571) Two memory leak flaws were found in the dhcpd daemon. A remote attacker could use these flaws to cause dhcpd to exhaust all available memory by sending a large number of DHCP requests. (CVE-2012-3954) Upstream acknowledges Markus Hietava of the Codenomicon CROSS project as the original reporter of CVE-2012-3571, and Glen Eustace of Massey University, New Zealand, as the original reporter of CVE-2012-3954. Users of DHCP should upgrade to these updated packages, which contain backported patches to correct these issues. After installing this update, all DHCP servers will be restarted automatically. last seen 2020-06-01 modified 2020-06-02 plugin id 61405 published 2012-08-03 reporter This script is Copyright (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/61405 title RHEL 6 : dhcp (RHSA-2012:1141) NASL family SuSE Local Security Checks NASL id SUSE_11_DHCP-120813.NASL description This update of dhcp fixes two security vulnerabilities : - Malformed client identifiers could cause a Denial of Service (excessive CPU consumption), effectively causing further client requests to not be processed anymore. (CVE-2012-3571) - Two unspecified memory leaks. (CVE-2012-3954) Additionally, the following issues were fixed : - The init script of dhcp-server was fixed to check syntax and fail on force-reload and restart to avoid stopping of running daemon followed by start failure - Added libgcc_s.so to chroot, so the server can report an assert/crash line. last seen 2020-06-05 modified 2013-01-25 plugin id 64123 published 2013-01-25 reporter This script is Copyright (C) 2013-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/64123 title SuSE 11.1 Security Update : dhcp (SAT Patch Number 6671) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2012-1140.NASL description Updated dhcp packages that fix one security issue are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. The Dynamic Host Configuration Protocol (DHCP) is a protocol that allows individual devices on an IP network to get their own network configuration information, including an IP address, a subnet mask, and a broadcast address. A denial of service flaw was found in the way the dhcpd daemon handled zero-length client identifiers. A remote attacker could use this flaw to send a specially crafted request to dhcpd, possibly causing it to enter an infinite loop and consume an excessive amount of CPU time. (CVE-2012-3571) Upstream acknowledges Markus Hietava of the Codenomicon CROSS project as the original reporter of this issue. Users of DHCP should upgrade to these updated packages, which contain a backported patch to correct this issue. After installing this update, all DHCP servers will be restarted automatically. last seen 2020-06-01 modified 2020-06-02 plugin id 61404 published 2012-08-03 reporter This script is Copyright (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/61404 title RHEL 5 : dhcp (RHSA-2012:1140) NASL family Scientific Linux Local Security Checks NASL id SL_20120803_DHCP_ON_SL5_X.NASL description The Dynamic Host Configuration Protocol (DHCP) is a protocol that allows individual devices on an IP network to get their own network configuration information, including an IP address, a subnet mask, and a broadcast address. A denial of service flaw was found in the way the dhcpd daemon handled zero-length client identifiers. A remote attacker could use this flaw to send a specially crafted request to dhcpd, possibly causing it to enter an infinite loop and consume an excessive amount of CPU time. (CVE-2012-3571) Users of DHCP should upgrade to these updated packages, which contain a backported patch to correct this issue. After installing this update, all DHCP servers will be restarted automatically. last seen 2020-03-18 modified 2012-08-06 plugin id 61427 published 2012-08-06 reporter This script is Copyright (C) 2012-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/61427 title Scientific Linux Security Update : dhcp on SL5.x i386/x86_64 (20120803) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2012-1141.NASL description From Red Hat Security Advisory 2012:1141 : Updated dhcp packages that fix three security issues are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The Dynamic Host Configuration Protocol (DHCP) is a protocol that allows individual devices on an IP network to get their own network configuration information, including an IP address, a subnet mask, and a broadcast address. A denial of service flaw was found in the way the dhcpd daemon handled zero-length client identifiers. A remote attacker could use this flaw to send a specially crafted request to dhcpd, possibly causing it to enter an infinite loop and consume an excessive amount of CPU time. (CVE-2012-3571) Two memory leak flaws were found in the dhcpd daemon. A remote attacker could use these flaws to cause dhcpd to exhaust all available memory by sending a large number of DHCP requests. (CVE-2012-3954) Upstream acknowledges Markus Hietava of the Codenomicon CROSS project as the original reporter of CVE-2012-3571, and Glen Eustace of Massey University, New Zealand, as the original reporter of CVE-2012-3954. Users of DHCP should upgrade to these updated packages, which contain backported patches to correct these issues. After installing this update, all DHCP servers will be restarted automatically. last seen 2020-06-01 modified 2020-06-02 plugin id 68594 published 2013-07-12 reporter This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/68594 title Oracle Linux 6 : dhcp (ELSA-2012-1141) NASL family OracleVM Local Security Checks NASL id ORACLEVM_OVMSA-2016-0058.NASL description The remote OracleVM system is missing necessary patches to address critical security updates : - exit(2) after sending DHCPDECLINE when dhclient has been started with last seen 2020-06-01 modified 2020-06-02 plugin id 91742 published 2016-06-22 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/91742 title OracleVM 3.2 : dhcp (OVMSA-2016-0058) NASL family Fedora Local Security Checks NASL id FEDORA_2012-11079.NASL description This is security bugfix release fixing several vulnerabilities. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-03-17 modified 2012-08-02 plugin id 61387 published 2012-08-02 reporter This script is Copyright (C) 2012-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/61387 title Fedora 17 : dhcp-4.2.4-9.P1.fc17 (2012-11079) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2012-1140.NASL description From Red Hat Security Advisory 2012:1140 : Updated dhcp packages that fix one security issue are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. The Dynamic Host Configuration Protocol (DHCP) is a protocol that allows individual devices on an IP network to get their own network configuration information, including an IP address, a subnet mask, and a broadcast address. A denial of service flaw was found in the way the dhcpd daemon handled zero-length client identifiers. A remote attacker could use this flaw to send a specially crafted request to dhcpd, possibly causing it to enter an infinite loop and consume an excessive amount of CPU time. (CVE-2012-3571) Upstream acknowledges Markus Hietava of the Codenomicon CROSS project as the original reporter of this issue. Users of DHCP should upgrade to these updated packages, which contain a backported patch to correct this issue. After installing this update, all DHCP servers will be restarted automatically. last seen 2020-06-01 modified 2020-06-02 plugin id 68593 published 2013-07-12 reporter This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/68593 title Oracle Linux 5 : dhcp (ELSA-2012-1140) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2012-1200.NASL description An updated rhev-hypervisor6 package that fixes multiple security issues and various bugs is now available. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The rhev-hypervisor6 package provides a Red Hat Enterprise Virtualization Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor is a dedicated Kernel-based Virtual Machine (KVM) hypervisor. It includes everything necessary to run and manage virtual machines: A subset of the Red Hat Enterprise Linux operating environment and the Red Hat Enterprise Virtualization Agent. Note: Red Hat Enterprise Virtualization Hypervisor is only available for the Intel 64 and AMD64 architectures with virtualization extensions. Multiple errors in glibc last seen 2020-06-01 modified 2020-06-02 plugin id 78931 published 2014-11-08 reporter This script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/78931 title RHEL 6 : rhev-hypervisor6 (RHSA-2012:1200) NASL family Solaris Local Security Checks NASL id SOLARIS11_ISC-DHCP_20120821.NASL description The remote Solaris system is missing necessary patches to address security updates : - ISC DHCP 4.1.2 through 4.2.4 and 4.1-ESV before 4.1-ESV-R6 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a malformed client identifier. (CVE-2012-3571) - Multiple memory leaks in ISC DHCP 4.1.x and 4.2.x before 4.2.4-P1 and 4.1-ESV before 4.1-ESV-R6 allow remote attackers to cause a denial of service (memory consumption) by sending many requests. (CVE-2012-3954) last seen 2020-06-01 modified 2020-06-02 plugin id 80647 published 2015-01-19 reporter This script is Copyright (C) 2015-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/80647 title Oracle Solaris Third-Party Patch Update : isc-dhcp (multiple_denial_of_service_dos4) NASL family Amazon Linux Local Security Checks NASL id ALA_ALAS-2012-115.NASL description A denial of service flaw was found in the way the dhcpd daemon handled zero-length client identifiers. A remote attacker could use this flaw to send a specially crafted request to dhcpd, possibly causing it to enter an infinite loop and consume an excessive amount of CPU time. (CVE-2012-3571) Two memory leak flaws were found in the dhcpd daemon. A remote attacker could use these flaws to cause dhcpd to exhaust all available memory by sending a large number of DHCP requests. (CVE-2012-3954) last seen 2020-06-01 modified 2020-06-02 plugin id 69605 published 2013-09-04 reporter This script is Copyright (C) 2013-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/69605 title Amazon Linux AMI : dhcp (ALAS-2012-115) NASL family SuSE Local Security Checks NASL id SUSE_11_DHCP-120730.NASL description This update provides dhcp 4.2.4-p1, which fixes the dhcpv6 server crashing while accessing the lease on heap and provides the following additional fixes : - Security fixes : - Previously the server code was relaxed to allow packets with zero length client ids to be processed. Under some situations use of zero length client ids can cause the server to go into an infinite loop. As such ids are not valid according to RFC 2132 section 9.14 the server no longer accepts them. Client ids with a length of 1 are also invalid but the server still accepts them in order to minimize disruption. The restriction will likely be tightened in the future to disallow ids with a length of 1. (ISC-Bugs #29851, CVE-2012-3571) - When attempting to convert a DUID from a client id option into a hardware address handle unexpected client ids properly. (ISC-Bugs #29852, CVE-2012-3570) - A pair of memory leaks were found and fixed. (ISC-Bugs #30024, (CVE-2012-3954) ) - Further upstream fixes : - Moved lease file check to a separate action so it is not used in restart -- it can fail when the daemon rewrites the lease causing a restart failure then. - Request dhcp6.sntp-servers in /etc/dhclient6.conf and forward to netconfig for processing. - Rotate the lease file when running in v6 mode. (ISC-Bugs #24887) - Fixed the code that checks if an address the server is planning to hand out is in a reserved range. This would appear as the server being out of addresses in pools with particular ranges. (ISC-Bugs #26498) - In the DDNS code handle error conditions more gracefully and add more logging code. The major change is to handle unexpected cancel events from the DNS client code. (ISC-Bugs #26287) - Tidy up the receive calls and eliminate the need for found_pkt. (ISC-Bugs #25066) - Add support for Infiniband over sockets to the server and relay code. - Modify the code that determines if an outstanding DDNS request should be cancelled. This patch results in cancelling the outstanding request less often. It fixes the problem caused by a client doing a release where the TXT and PTR records weren last seen 2020-06-05 modified 2013-01-25 plugin id 64122 published 2013-01-25 reporter This script is Copyright (C) 2013-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/64122 title SuSE 11.2 Security Update : dhcp (SAT Patch Number 6606) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2012-1185.NASL description An updated rhev-hypervisor5 package that fixes one security issue and various bugs is now available. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. The rhev-hypervisor5 package provides a Red Hat Enterprise Virtualization Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor is a dedicated Kernel-based Virtual Machine (KVM) hypervisor. It includes everything necessary to run and manage virtual machines: A subset of the Red Hat Enterprise Linux operating environment and the Red Hat Enterprise Virtualization Agent. Note: Red Hat Enterprise Virtualization Hypervisor is only available for the Intel 64 and AMD64 architectures with virtualization extensions. It was discovered that the formatted printing functionality in glibc did not properly restrict the use of alloca(). This could allow an attacker to bypass FORTIFY_SOURCE protections and execute arbitrary code using a format string flaw in an application, even though these protections are expected to limit the impact of such flaws to an application abort. (CVE-2012-3406) This updated package provides updated components that include fixes for various security issues. These issues have no security impact on Red Hat Enterprise Virtualization Hypervisor itself, however. The security fixes included in this update address the following CVE numbers : CVE-2012-3817 (bind issue) CVE-2012-3571 (dhcp issue) CVE-2012-2313 (kernel issue) CVE-2012-0441 (nss issue) CVE-2012-2337 and CVE-2012-3440 (sudo issues) CVE-2012-2625 (xen issue) Users of Red Hat Enterprise Virtualization Hypervisor are advised to upgrade to this updated package, which fixes these issues. last seen 2020-06-01 modified 2020-06-02 plugin id 78930 published 2014-11-08 reporter This script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/78930 title RHEL 5 : rhev-hypervisor5 (RHSA-2012:1185) NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_C7FA3618D5FF11E190A2000C299B62E1.NASL description ISC reports : An unexpected client identifier parameter can cause the ISC DHCP daemon to segmentation fault when running in DHCPv6 mode, resulting in a denial of service to further client requests. In order to exploit this condition, an attacker must be able to send requests to the DHCP server. An error in the handling of malformed client identifiers can cause a DHCP server running affected versions (see last seen 2020-06-01 modified 2020-06-02 plugin id 60115 published 2012-07-25 reporter This script is Copyright (C) 2012-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/60115 title FreeBSD : isc-dhcp -- multiple vulnerabilities (c7fa3618-d5ff-11e1-90a2-000c299b62e1) NASL family SuSE Local Security Checks NASL id SUSE_DHCP-8245.NASL description This update of dhcp fixed two security vulnerabilities : - Malformed client identifiers could cause a Denial of Service (excessive CPU consumption), effectively causing further client requests to not be processed anymore. (CVE-2012-3571) - Two unspecified memory leaks. (CVE-2012-3954) last seen 2020-06-05 modified 2012-08-20 plugin id 61595 published 2012-08-20 reporter This script is Copyright (C) 2012-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/61595 title SuSE 10 Security Update : dhcp (ZYPP Patch Number 8245)
Packetstorm
| data source | https://packetstormsecurity.com/files/download/115094/dhcp412-dos.txt |
| id | PACKETSTORM:115094 |
| last seen | 2016-12-05 |
| published | 2012-07-29 |
| reporter | K1P0D |
| source | https://packetstormsecurity.com/files/115094/SC-DHCP-4.1.2-Denial-Of-Service.html |
| title | SC DHCP 4.1.2 Denial Of Service |
Redhat
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References
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761
- http://lists.opensuse.org/opensuse-updates/2012-08/msg00030.html
- http://rhn.redhat.com/errata/RHSA-2012-1140.html
- http://rhn.redhat.com/errata/RHSA-2012-1141.html
- http://security.gentoo.org/glsa/glsa-201301-06.xml
- http://www.debian.org/security/2012/dsa-2516
- http://www.debian.org/security/2012/dsa-2519
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:115
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:116
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- http://www.securityfocus.com/bid/54665
- http://www.ubuntu.com/usn/USN-1519-1
- https://kb.isc.org/article/AA-00712