Vulnerabilities > CVE-2014-3676 - Out-Of-Bounds Write vulnerability in Redhat Shim
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
PARTIAL Integrity impact
PARTIAL Availability impact
PARTIAL Summary
Heap-based buffer overflow in Shim allows remote attackers to execute arbitrary code via a crafted IPv6 address, related to the "tftp:// DHCPv6 boot option."
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 4 |
Common Weakness Enumeration (CWE)
Nessus
NASL family Fedora Local Security Checks NASL id FEDORA_2014-14059.NASL description This update fixes CVEs CVE-2014-3675, CVE-2014-3676, and CVE-2014-3677, as well as moving to the 0.8 release, which adds support for Aarch64 and fixes several bugs. 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 2014-11-12 plugin id 79195 published 2014-11-12 reporter This script is Copyright (C) 2014-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/79195 title Fedora 19 : mokutil-0.2.0-1.fc19 / shim-signed-0.8-2 (2014-14059) NASL family SuSE Local Security Checks NASL id SUSE_11_SHIM-2014-11-20-141119.NASL description shim has been updated to fix three security issues : - OOB read access when parsing DHCPv6 packets (remote DoS). (CVE-2014-3675) - Heap overflow when parsing IPv6 addresses provided by tftp:// DHCPv6 boot option (RCE). (CVE-2014-3676) - Memory corruption when processing user provided MOK lists. (CVE-2014-3677) last seen 2020-06-05 modified 2014-12-15 plugin id 80024 published 2014-12-15 reporter This script is Copyright (C) 2014-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/80024 title SuSE 11.3 Security Update : shim (SAT Patch Number 9997) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2014-1801.NASL description From Red Hat Security Advisory 2014:1801 : Updated shim packages that fix three security issues are now available for Red Hat Enterprise Linux 7. Red Hat Product Security 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. Shim is the initial UEFI bootloader that handles chaining to a trusted full bootloader under secure boot environments. A heap-based buffer overflow flaw was found the way shim parsed certain IPv6 addresses. If IPv6 network booting was enabled, a malicious server could supply a crafted IPv6 address that would cause shim to crash or, potentially, execute arbitrary code. (CVE-2014-3676) An out-of-bounds memory write flaw was found in the way shim processed certain Machine Owner Keys (MOKs). A local attacker could potentially use this flaw to execute arbitrary code on the system. (CVE-2014-3677) An out-of-bounds memory read flaw was found in the way shim parsed certain IPv6 packets. A specially crafted DHCPv6 packet could possibly cause shim to crash, preventing the system from booting if IPv6 booting was enabled. (CVE-2014-3675) Red Hat would like to thank the SUSE Security Team for reporting these issues. All shim users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect. last seen 2020-06-01 modified 2020-06-02 plugin id 78882 published 2014-11-06 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/78882 title Oracle Linux 7 : shim (ELSA-2014-1801) NASL family Scientific Linux Local Security Checks NASL id SL_20141104_SHIM_ON_SL7_X.NASL description A heap-based buffer overflow flaw was found the way shim parsed certain IPv6 addresses. If IPv6 network booting was enabled, a malicious server could supply a crafted IPv6 address that would cause shim to crash or, potentially, execute arbitrary code. (CVE-2014-3676) An out-of-bounds memory write flaw was found in the way shim processed certain Machine Owner Keys (MOKs). A local attacker could potentially use this flaw to execute arbitrary code on the system. (CVE-2014-3677) An out-of-bounds memory read flaw was found in the way shim parsed certain IPv6 packets. A specially crafted DHCPv6 packet could possibly cause shim to crash, preventing the system from booting if IPv6 booting was enabled. (CVE-2014-3675) The system must be rebooted for this update to take effect. last seen 2020-03-18 modified 2015-02-11 plugin id 81294 published 2015-02-11 reporter This script is Copyright (C) 2015-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/81294 title Scientific Linux Security Update : shim on SL7.x x86_64 (20141104) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2014-1801.NASL description Updated shim packages that fix three security issues are now available for Red Hat Enterprise Linux 7. Red Hat Product Security 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. Shim is the initial UEFI bootloader that handles chaining to a trusted full bootloader under secure boot environments. A heap-based buffer overflow flaw was found the way shim parsed certain IPv6 addresses. If IPv6 network booting was enabled, a malicious server could supply a crafted IPv6 address that would cause shim to crash or, potentially, execute arbitrary code. (CVE-2014-3676) An out-of-bounds memory write flaw was found in the way shim processed certain Machine Owner Keys (MOKs). A local attacker could potentially use this flaw to execute arbitrary code on the system. (CVE-2014-3677) An out-of-bounds memory read flaw was found in the way shim parsed certain IPv6 packets. A specially crafted DHCPv6 packet could possibly cause shim to crash, preventing the system from booting if IPv6 booting was enabled. (CVE-2014-3675) Red Hat would like to thank the SUSE Security Team for reporting these issues. All shim users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect. last seen 2020-06-01 modified 2020-06-02 plugin id 78867 published 2014-11-05 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/78867 title RHEL 7 : shim (RHSA-2014:1801) NASL family SuSE Local Security Checks NASL id OPENSUSE-2015-48.NASL description shim was updated to fix several security issues. - OOB read access when parsing DHCPv6 packets (remote DoS) (CVE-2014-3675). - Heap overflow when parsing IPv6 addresses provided by tftp:// DHCPv6 boot option (RCE) (CVE-2014-3676). - Memory corruption when processing user provided MOK lists (CVE-2014-3677). More information is available at https://bugzilla.novell.com/show_bug.cgi?id=889332 To enable this update gnu-efi was updated to 3.0u and pesign to version 0.109 last seen 2020-06-05 modified 2015-01-23 plugin id 80926 published 2015-01-23 reporter This script is Copyright (C) 2015-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/80926 title openSUSE Security Update : gnu-efi / pesign / shim (openSUSE-2015-48) NASL family Fedora Local Security Checks NASL id FEDORA_2014-14058.NASL description This update fixes CVEs CVE-2014-3675, CVE-2014-3676, and CVE-2014-3677, as well as moving to the 0.8 release, which adds support for Aarch64 and fixes several bugs. 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 2014-11-12 plugin id 79194 published 2014-11-12 reporter This script is Copyright (C) 2014-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/79194 title Fedora 20 : mokutil-0.2.0-1.fc20 / shim-signed-0.8-3 (2014-14058) NASL family Fedora Local Security Checks NASL id FEDORA_2014-13581.NASL description This update fixes CVEs CVE-2014-3675, CVE-2014-3676, and CVE-2014-3677, as well as moving to the 0.8 release, which adds support for Aarch64 and fixes several bugs. 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 2014-11-03 plugin id 78809 published 2014-11-03 reporter This script is Copyright (C) 2014-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/78809 title Fedora 21 : mokutil-0.2.0-1.fc21 / shim-0.8-1.fc22 / shim-signed-0.8-1.fc22 (2014-13581)
Redhat
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