Vulnerabilities > CVE-2011-3149 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Linux-Pam
Attack vector
UNKNOWN Attack complexity
UNKNOWN Privileges required
UNKNOWN Confidentiality impact
UNKNOWN Integrity impact
UNKNOWN Availability impact
UNKNOWN Summary
The _expand_arg function in the pam_env module (modules/pam_env/pam_env.c) in Linux-PAM (aka pam) before 1.1.5 does not properly handle when environment variable expansion can overflow, which allows local users to cause a denial of service (CPU consumption).
Vulnerable Configurations
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.
Nessus
NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2013-0521.NASL description From Red Hat Security Advisory 2013:0521 : Updated pam packages that fix two security issues, several bugs, and add various enhancements 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. Pluggable Authentication Modules (PAM) provide a system whereby administrators can set up authentication policies without having to recompile programs to handle authentication. A stack-based buffer overflow flaw was found in the way the pam_env module parsed users last seen 2020-06-01 modified 2020-06-02 plugin id 68757 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/68757 title Oracle Linux 6 : pam (ELSA-2013-0521) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Red Hat Security Advisory RHSA-2013:0521 and # Oracle Linux Security Advisory ELSA-2013-0521 respectively. # include("compat.inc"); if (description) { script_id(68757); script_version("1.5"); script_cvs_date("Date: 2019/09/30 10:58:18"); script_cve_id("CVE-2011-3148", "CVE-2011-3149"); script_bugtraq_id(50343); script_xref(name:"RHSA", value:"2013:0521"); script_name(english:"Oracle Linux 6 : pam (ELSA-2013-0521)"); script_summary(english:"Checks rpm output for the updated packages"); script_set_attribute( attribute:"synopsis", value:"The remote Oracle Linux host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "From Red Hat Security Advisory 2013:0521 : Updated pam packages that fix two security issues, several bugs, and add various enhancements 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. Pluggable Authentication Modules (PAM) provide a system whereby administrators can set up authentication policies without having to recompile programs to handle authentication. A stack-based buffer overflow flaw was found in the way the pam_env module parsed users' '~/.pam_environment' files. If an application's PAM configuration contained 'user_readenv=1' (this is not the default), a local attacker could use this flaw to crash the application or, possibly, escalate their privileges. (CVE-2011-3148) A denial of service flaw was found in the way the pam_env module expanded certain environment variables. If an application's PAM configuration contained 'user_readenv=1' (this is not the default), a local attacker could use this flaw to cause the application to enter an infinite loop. (CVE-2011-3149) Red Hat would like to thank Kees Cook of the Google ChromeOS Team for reporting the CVE-2011-3148 and CVE-2011-3149 issues. These updated pam packages include numerous bug fixes and enhancements. Space precludes documenting all of these changes in this advisory. Users are directed to the Red Hat Enterprise Linux 6.4 Technical Notes, linked to in the References, for information on the most significant of these changes. All pam users are advised to upgrade to these updated packages, which contain backported patches to correct these issues and add these enhancements." ); script_set_attribute( attribute:"see_also", value:"https://oss.oracle.com/pipermail/el-errata/2013-February/003283.html" ); script_set_attribute(attribute:"solution", value:"Update the affected pam packages."); script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"exploit_available", value:"false"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:pam"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:pam-devel"); script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:6"); script_set_attribute(attribute:"vuln_publication_date", value:"2012/07/22"); script_set_attribute(attribute:"patch_publication_date", value:"2013/02/25"); script_set_attribute(attribute:"plugin_publication_date", value:"2013/07/12"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Oracle Linux Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/OracleLinux", "Host/RedHat/release", "Host/RedHat/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/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux"); release = get_kb_item("Host/RedHat/release"); if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux"); os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux"); os_ver = os_ver[1]; if (! preg(pattern:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 6", "Oracle Linux " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Oracle Linux", cpu); flag = 0; if (rpm_check(release:"EL6", reference:"pam-1.1.1-13.el6")) flag++; if (rpm_check(release:"EL6", reference:"pam-devel-1.1.1-13.el6")) 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, "pam / pam-devel"); }NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-1237-1.NASL description Kees Cook discovered that the PAM pam_env module incorrectly handled certain malformed environment files. A local attacker could use this flaw to cause a denial of service, or possibly gain privileges. The default compiler options for affected releases should reduce the vulnerability to a denial of service. (CVE-2011-3148) Kees Cook discovered that the PAM pam_env module incorrectly handled variable expansion. A local attacker could use this flaw to cause a denial of service. (CVE-2011-3149) Stephane Chazelas discovered that the PAM pam_motd module incorrectly cleaned the environment during execution of the motd scripts. In certain environments, a local attacker could use this to execute arbitrary code as root, and gain privileges. 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 56629 published 2011-10-25 reporter Ubuntu Security Notice (C) 2011-2019 Canonical, Inc. / NASL script (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/56629 title Ubuntu 8.04 LTS / 10.04 LTS / 10.10 / 11.04 / 11.10 : pam vulnerabilities (USN-1237-1) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Ubuntu Security Notice USN-1237-1. The text # itself is copyright (C) Canonical, Inc. See # <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered # trademark of Canonical, Inc. # include("compat.inc"); if (description) { script_id(56629); script_version("1.12"); script_cvs_date("Date: 2019/09/19 12:54:27"); script_cve_id("CVE-2011-3148", "CVE-2011-3149", "CVE-2011-3628"); script_xref(name:"USN", value:"1237-1"); script_name(english:"Ubuntu 8.04 LTS / 10.04 LTS / 10.10 / 11.04 / 11.10 : pam vulnerabilities (USN-1237-1)"); script_summary(english:"Checks dpkg output for updated package."); script_set_attribute( attribute:"synopsis", value:"The remote Ubuntu host is missing a security-related patch." ); script_set_attribute( attribute:"description", value: "Kees Cook discovered that the PAM pam_env module incorrectly handled certain malformed environment files. A local attacker could use this flaw to cause a denial of service, or possibly gain privileges. The default compiler options for affected releases should reduce the vulnerability to a denial of service. (CVE-2011-3148) Kees Cook discovered that the PAM pam_env module incorrectly handled variable expansion. A local attacker could use this flaw to cause a denial of service. (CVE-2011-3149) Stephane Chazelas discovered that the PAM pam_motd module incorrectly cleaned the environment during execution of the motd scripts. In certain environments, a local attacker could use this to execute arbitrary code as root, and gain privileges. 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." ); script_set_attribute( attribute:"see_also", value:"https://usn.ubuntu.com/1237-1/" ); script_set_attribute( attribute:"solution", value:"Update the affected libpam-modules package." ); script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"exploit_available", value:"false"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libpam-modules"); script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:10.04:-:lts"); script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:10.10"); script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:11.04"); script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:11.10"); script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:8.04:-:lts"); script_set_attribute(attribute:"vuln_publication_date", value:"2012/07/22"); script_set_attribute(attribute:"patch_publication_date", value:"2011/10/24"); script_set_attribute(attribute:"plugin_publication_date", value:"2011/10/25"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"Ubuntu Security Notice (C) 2011-2019 Canonical, Inc. / NASL script (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Ubuntu Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l"); exit(0); } include("audit.inc"); include("ubuntu.inc"); include("misc_func.inc"); if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/Ubuntu/release"); if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu"); release = chomp(release); if (! preg(pattern:"^(8\.04|10\.04|10\.10|11\.04|11\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 8.04 / 10.04 / 10.10 / 11.04 / 11.10", "Ubuntu " + release); if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu); flag = 0; if (ubuntu_check(osver:"8.04", pkgname:"libpam-modules", pkgver:"0.99.7.1-5ubuntu6.5")) flag++; if (ubuntu_check(osver:"10.04", pkgname:"libpam-modules", pkgver:"1.1.1-2ubuntu5.4")) flag++; if (ubuntu_check(osver:"10.10", pkgname:"libpam-modules", pkgver:"1.1.1-4ubuntu2.4")) flag++; if (ubuntu_check(osver:"11.04", pkgname:"libpam-modules", pkgver:"1.1.2-2ubuntu8.4")) flag++; if (ubuntu_check(osver:"11.10", pkgname:"libpam-modules", pkgver:"1.1.3-2ubuntu2.1")) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_WARNING, extra : ubuntu_report_get() ); exit(0); } else { tested = ubuntu_pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "libpam-modules"); }NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2013-0521.NASL description Updated pam packages that fix two security issues, several bugs, and add various enhancements 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. Pluggable Authentication Modules (PAM) provide a system whereby administrators can set up authentication policies without having to recompile programs to handle authentication. A stack-based buffer overflow flaw was found in the way the pam_env module parsed users last seen 2020-06-01 modified 2020-06-02 plugin id 64768 published 2013-02-21 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/64768 title RHEL 6 : pam (RHSA-2013:0521) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Red Hat Security Advisory RHSA-2013:0521. The text # itself is copyright (C) Red Hat, Inc. # include("compat.inc"); if (description) { script_id(64768); script_version("1.14"); script_cvs_date("Date: 2019/10/24 15:35:36"); script_cve_id("CVE-2011-3148", "CVE-2011-3149"); script_xref(name:"RHSA", value:"2013:0521"); script_name(english:"RHEL 6 : pam (RHSA-2013:0521)"); script_summary(english:"Checks the rpm output for the updated packages"); script_set_attribute( attribute:"synopsis", value:"The remote Red Hat host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "Updated pam packages that fix two security issues, several bugs, and add various enhancements 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. Pluggable Authentication Modules (PAM) provide a system whereby administrators can set up authentication policies without having to recompile programs to handle authentication. A stack-based buffer overflow flaw was found in the way the pam_env module parsed users' '~/.pam_environment' files. If an application's PAM configuration contained 'user_readenv=1' (this is not the default), a local attacker could use this flaw to crash the application or, possibly, escalate their privileges. (CVE-2011-3148) A denial of service flaw was found in the way the pam_env module expanded certain environment variables. If an application's PAM configuration contained 'user_readenv=1' (this is not the default), a local attacker could use this flaw to cause the application to enter an infinite loop. (CVE-2011-3149) Red Hat would like to thank Kees Cook of the Google ChromeOS Team for reporting the CVE-2011-3148 and CVE-2011-3149 issues. These updated pam packages include numerous bug fixes and enhancements. Space precludes documenting all of these changes in this advisory. Users are directed to the Red Hat Enterprise Linux 6.4 Technical Notes, linked to in the References, for information on the most significant of these changes. All pam users are advised to upgrade to these updated packages, which contain backported patches to correct these issues and add these enhancements." ); # https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/6/ script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?b5caa05f" ); script_set_attribute( attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2013:0521" ); script_set_attribute( attribute:"see_also", value:"https://access.redhat.com/security/cve/cve-2011-3149" ); script_set_attribute( attribute:"see_also", value:"https://access.redhat.com/security/cve/cve-2011-3148" ); script_set_attribute( attribute:"solution", value:"Update the affected pam, pam-debuginfo and / or pam-devel packages." ); script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"exploit_available", value:"false"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:pam"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:pam-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:pam-devel"); script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6"); script_set_attribute(attribute:"vuln_publication_date", value:"2012/07/22"); script_set_attribute(attribute:"patch_publication_date", value:"2013/02/21"); script_set_attribute(attribute:"plugin_publication_date", value:"2013/02/21"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Red Hat Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("misc_func.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/RedHat/release"); if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat"); os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat"); os_ver = os_ver[1]; if (! preg(pattern:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 6.x", "Red Hat " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu); yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo"); if (!empty_or_null(yum_updateinfo)) { rhsa = "RHSA-2013:0521"; yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa); if (!empty_or_null(yum_report)) { security_report_v4( port : 0, severity : SECURITY_WARNING, extra : yum_report ); exit(0); } else { audit_message = "affected by Red Hat security advisory " + rhsa; audit(AUDIT_OS_NOT, audit_message); } } else { flag = 0; if (rpm_check(release:"RHEL6", reference:"pam-1.1.1-13.el6")) flag++; if (rpm_check(release:"RHEL6", reference:"pam-debuginfo-1.1.1-13.el6")) flag++; if (rpm_check(release:"RHEL6", reference:"pam-devel-1.1.1-13.el6")) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_WARNING, extra : rpm_report_get() + redhat_report_package_caveat() ); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "pam / pam-debuginfo / pam-devel"); } }NASL family Fedora Local Security Checks NASL id FEDORA_2011-16390.NASL description Low impact security update from upstream. Only minor and safe changes. 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 2020-06-01 modified 2020-06-02 plugin id 57002 published 2011-12-05 reporter This script is Copyright (C) 2011-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/57002 title Fedora 16 : pam-1.1.5-1.fc16 (2011-16390) NASL family SuSE Local Security Checks NASL id SUSE_11_4_PAM-111025.NASL description The pam_env module is vulnerable to a stack overflow (CVE-2011-3148) and a DoS condition (CVE-2011-3149) when parsing users .pam_environment files. last seen 2020-06-01 modified 2020-06-02 plugin id 75991 published 2014-06-13 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/75991 title openSUSE Security Update : pam (openSUSE-SU-2011:1204-1) NASL family Debian Local Security Checks NASL id DEBIAN_DSA-2326.NASL description Kees Cook of the ChromeOS security team discovered a buffer overflow in pam_env, a PAM module to set environment variables through the PAM stack, which allowed the execution of arbitrary code. An additional issue in argument parsing allows denial of service. The oldstable distribution (lenny) is not affected. last seen 2020-03-17 modified 2011-10-25 plugin id 56622 published 2011-10-25 reporter This script is Copyright (C) 2011-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/56622 title Debian DSA-2326-1 : pam - several vulnerabilities NASL family Scientific Linux Local Security Checks NASL id SL_20130221_PAM_ON_SL6_X.NASL description A stack-based buffer overflow flaw was found in the way the pam_env module parsed users last seen 2020-03-18 modified 2013-03-01 plugin id 64955 published 2013-03-01 reporter This script is Copyright (C) 2013-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/64955 title Scientific Linux Security Update : pam on SL6.x i386/x86_64 (20130221) NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-201206-31.NASL description The remote host is affected by the vulnerability described in GLSA-201206-31 (Linux-PAM: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in Linux-PAM. Please review the CVE identifiers referenced below for details. Impact : A local attacker could use specially crafted files to cause a buffer overflow, possibly resulting in privilege escalation or Denial of Service. Furthermore, a local attacker could execute specially crafted programs or symlink attacks, possibly resulting in data loss or disclosure of sensitive information. Workaround : There is no known workaround at this time. last seen 2020-06-01 modified 2020-06-02 plugin id 59704 published 2012-06-26 reporter This script is Copyright (C) 2012-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/59704 title GLSA-201206-31 : Linux-PAM: Multiple vulnerabilities NASL family SuSE Local Security Checks NASL id SUSE_11_PAM-111025.NASL description The pam_env module is vulnerable to a stack overflow (CVE-2011-3148) and a DoS condition (CVE-2011-3149) when parsing users .pam_environment files. Additionally a missing return value check inside pam_xauth has been fixed. (CVE-2010-3316) last seen 2020-06-01 modified 2020-06-02 plugin id 57126 published 2011-12-13 reporter This script is Copyright (C) 2011-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/57126 title SuSE 11.1 Security Update : pam (SAT Patch Number 5342) NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2013-0521.NASL description Updated pam packages that fix two security issues, several bugs, and add various enhancements 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. Pluggable Authentication Modules (PAM) provide a system whereby administrators can set up authentication policies without having to recompile programs to handle authentication. A stack-based buffer overflow flaw was found in the way the pam_env module parsed users last seen 2020-06-01 modified 2020-06-02 plugin id 65152 published 2013-03-10 reporter This script is Copyright (C) 2013-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/65152 title CentOS 6 : pam (CESA-2013:0521) NASL family SuSE Local Security Checks NASL id SUSE_PAM-7814.NASL description The pam_env module is vulnerable to a stack overflow (CVE-2011-3148) and a DoS condition (CVE-2011-3149) when parsing users .pam_environment files. Additionally a missing return value check inside pam_xauth has been fixed. (CVE-2010-3316) last seen 2020-06-01 modified 2020-06-02 plugin id 57239 published 2011-12-13 reporter This script is Copyright (C) 2011-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/57239 title SuSE 10 Security Update : pam (ZYPP Patch Number 7814) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2013-0579.NASL description An updated rhev-hypervisor6 package that fixes three security issues, various bugs, and adds an enhancement is now available. The Red Hat Security Response Team has rated this update as having important 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. A flaw was found in the way the vhost kernel module handled descriptors that spanned multiple regions. A privileged guest user could use this flaw to crash the host or, potentially, escalate their privileges on the host. (CVE-2013-0311) It was found that the default SCSI command filter does not accommodate commands that overlap across device classes. A privileged guest user could potentially use this flaw to write arbitrary data to a LUN that is passed-through as read-only. (CVE-2012-4542) It was discovered that dnsmasq, when used in combination with certain libvirtd configurations, could incorrectly process network packets from network interfaces that were intended to be prohibited. A remote, unauthenticated attacker could exploit this flaw to cause a denial of service via DNS amplification attacks. (CVE-2012-3411) The CVE-2012-4542 issue was discovered by Paolo Bonzini of Red Hat. This updated package provides updated components that include fixes for several security issues. These issues had no security impact on Red Hat Enterprise Virtualization Hypervisor itself, however. The security fixes included in this update address the following CVE numbers : CVE-2012-3955 (dhcp issue) CVE-2011-4355 (gdb issue) CVE-2012-4508, CVE-2013-0190, CVE-2013-0309, and CVE-2013-0310 (kernel issues) CVE-2012-5536 (openssh issue) CVE-2011-3148 and CVE-2011-3149 (pam issues) CVE-2013-0157 (util-linux-ng issue) This updated Red Hat Enterprise Virtualization Hypervisor package also fixes the following bugs : * Previously, the Administration Portal would always display the option to upgrade the Red Hat Enterprise Virtualization Hypervisor ISO regardless of whether or not the selected host was up-to-date. Now, the VDSM version compatibility is considered and the upgrade message only displays if there is an upgrade relevant to the host available. (BZ#853092) * An out of date version of libvirt was included in the Red Hat Enterprise Virtualization Hypervisor 6.4 package. As a result, virtual machines with supported CPU models were not being properly parsed by libvirt and failed to start. A more recent version of libvirt has been included in this updated hypervisor package. Virtual machines now start normally. (BZ#895078) As well, this update adds the following enhancement : * Hypervisor packages now take advantage of the installonlypkg function provided by yum. This allows for multiple versions of the hypervisor package to be installed on a system concurrently without making changes to the yum configuration as was previously required. (BZ#863579) This update includes the ovirt-node build from RHBA-2013:0556 : https://rhn.redhat.com/errata/RHBA-2013-0556.html Users of the Red Hat Enterprise Virtualization Hypervisor are advised to upgrade to this updated package, which fixes these issues and adds this enhancement. last seen 2020-06-01 modified 2020-06-02 plugin id 78950 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/78950 title RHEL 6 : rhev-hypervisor6 (RHSA-2013:0579) NASL family SuSE Local Security Checks NASL id SUSE_PAM-7815.NASL description The pam_env module is vulnerable to a stack overflow (CVE-2011-3148) and a DoS condition (CVE-2011-3149) when parsing users .pam_environment files. Additionally a missing return value check inside pam_xauth has been fixed. (CVE-2010-3316) last seen 2020-06-01 modified 2020-06-02 plugin id 56701 published 2011-11-03 reporter This script is Copyright (C) 2011-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/56701 title SuSE 10 Security Update : pam (ZYPP Patch Number 7815) NASL family Amazon Linux Local Security Checks NASL id ALA_ALAS-2013-160.NASL description A stack-based buffer overflow flaw was found in the way the pam_env module parsed users last seen 2020-06-01 modified 2020-06-02 plugin id 69719 published 2013-09-04 reporter This script is Copyright (C) 2013-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/69719 title Amazon Linux AMI : pam (ALAS-2013-160) NASL family SuSE Local Security Checks NASL id SUSE_11_3_PAM-111025.NASL description The pam_env module is vulnerable to a stack overflow (CVE-2011-3148) and a DoS condition (CVE-2011-3149) when parsing users .pam_environment files. Additionally a missing return value check inside pam_xauth has been fixed (CVE-2010-3316). last seen 2020-06-01 modified 2020-06-02 plugin id 75704 published 2014-06-13 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/75704 title openSUSE Security Update : pam (openSUSE-SU-2011:1208-1) NASL family Fedora Local Security Checks NASL id FEDORA_2011-16365.NASL description Low impact security update from upstream. Only minor and safe changes. 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 2020-06-01 modified 2020-06-02 plugin id 57073 published 2011-12-12 reporter This script is Copyright (C) 2011-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/57073 title Fedora 15 : pam-1.1.5-1.fc15 (2011-16365)
Redhat
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References
- http://secunia.com/advisories/46583
- http://secunia.com/advisories/49711
- https://bugs.launchpad.net/ubuntu/+source/pam/+bug/874565
- http://security.gentoo.org/glsa/glsa-201206-31.xml
- http://www.ubuntu.com/usn/USN-1237-1
- http://git.fedorahosted.org/git/?p=linux-pam.git%3Ba=commitdiff%3Bh=109823cb621c900c07c4b6cdc99070d354d19444