Vulnerabilities > CVE-2020-6796 - Out-of-bounds Write vulnerability in Mozilla Firefox
Attack vector
NETWORK Attack complexity
MEDIUM Privileges required
NONE Confidentiality impact
PARTIAL Integrity impact
PARTIAL Availability impact
PARTIAL Summary
A content process could have modified shared memory relating to crash reporting information, crash itself, and cause an out-of-bound write. This could have caused memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 73 and Firefox < ESR68.5.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Nessus
NASL family Debian Local Security Checks NASL id DEBIAN_DLA-2102.NASL description Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code. For Debian 8 last seen 2020-05-09 modified 2020-02-14 plugin id 133697 published 2020-02-14 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133697 title Debian DLA-2102-1 : firefox-esr security update NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2020-0519.NASL description An update for firefox is now available for Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Mozilla Firefox is an open source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 68.5.0 ESR. Security Fix(es) : * Mozilla: Missing bounds check on shared memory read in the parent process (CVE-2020-6796) * Mozilla: Memory safety bugs fixed in Firefox 73 and Firefox ESR 68.5 (CVE-2020-6800) * Mozilla: Incorrect parsing of template tag could result in JavaScript injection (CVE-2020-6798) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. last seen 2020-06-02 modified 2020-02-18 plugin id 133751 published 2020-02-18 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133751 title RHEL 8 : firefox (RHSA-2020:0519) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-4278-1.NASL description Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, conduct cross-site scripting (XSS) attacks, or execute arbitrary code. 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 2020-05-09 modified 2020-02-14 plugin id 133715 published 2020-02-14 reporter Ubuntu Security Notice (C) 2020 Canonical, Inc. / NASL script (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133715 title Ubuntu 18.04 LTS / 19.10 : firefox vulnerabilities (USN-4278-1) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2020-0520.NASL description From Red Hat Security Advisory 2020:0520 : An update for firefox is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Mozilla Firefox is an open source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 68.5.0 ESR. Security Fix(es) : * Mozilla: Missing bounds check on shared memory read in the parent process (CVE-2020-6796) * Mozilla: Memory safety bugs fixed in Firefox 73 and Firefox ESR 68.5 (CVE-2020-6800) * Mozilla: Incorrect parsing of template tag could result in JavaScript injection (CVE-2020-6798) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. last seen 2020-05-31 modified 2020-02-18 plugin id 133745 published 2020-02-18 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133745 title Oracle Linux 7 : firefox (ELSA-2020-0520) NASL family SuSE Local Security Checks NASL id OPENSUSE-2020-230.NASL description This update for MozillaFirefox fixes the following issues : - Firefox Extended Support Release 68.5.0 ESR - Fixed: Various stability and security fixes - Mozilla Firefox ESR68.5 MFSA 2020-06 (bsc#1163368) - CVE-2020-6796 (bmo#1610426) Missing bounds check on shared memory read in the parent process - CVE-2020-6797 (bmo#1596668) Extensions granted downloads.open permission could open arbitrary applications on Mac OSX - CVE-2020-6798 (bmo#1602944) Incorrect parsing of template tag could result in JavaScript injection - CVE-2020-6799 (bmo#1606596) Arbitrary code execution when opening pdf links from other applications, when Firefox is configured as default pdf reader - CVE-2020-6800 (bmo#1595786, bmo#1596706, bmo#1598543, bmo#1604851, bmo#1605777, bmo#1608580, bmo#1608785) Memory safety bugs fixed in Firefox 73 and Firefox ESR 68.5 This update was imported from the SUSE:SLE-15:Update update project. last seen 2020-05-09 modified 2020-02-18 plugin id 133759 published 2020-02-18 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133759 title openSUSE Security Update : MozillaFirefox (openSUSE-2020-230) NASL family SuSE Local Security Checks NASL id SUSE_SU-2020-0383-1.NASL description This update for MozillaFirefox fixes the following issues : Firefox Extended Support Release 68.5.0 ESR - Fixed: Various stability and security fixes Mozilla Firefox ESR68.5 MFSA 2020-06 (bsc#1163368) - CVE-2020-6796 (bmo#1610426) Missing bounds check on shared memory read in the parent process - CVE-2020-6797 (bmo#1596668) Extensions granted downloads.open permission could open arbitrary applications on Mac OSX - CVE-2020-6798 (bmo#1602944) Incorrect parsing of template tag could result in JavaScript injection - CVE-2020-6799 (bmo#1606596) Arbitrary code execution when opening pdf links from other applications, when Firefox is configured as default pdf reader - CVE-2020-6800 (bmo#1595786, bmo#1596706, bmo#1598543, bmo#1604851, bmo#1605777, bmo#1608580, bmo#1608785) Memory safety bugs fixed in Firefox 73 and Firefox ESR 68.5 Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-09 modified 2020-02-18 plugin id 133761 published 2020-02-18 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133761 title SUSE SLED15 / SLES15 Security Update : MozillaFirefox (SUSE-SU-2020:0383-1) NASL family MacOS X Local Security Checks NASL id MACOS_FIREFOX_73_0.NASL description The version of Firefox installed on the remote macOS or Mac OS X host is prior to 73.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-05 advisory. Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-05-09 modified 2020-02-14 plugin id 133692 published 2020-02-14 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133692 title Mozilla Firefox < 73.0 NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2020-0521.NASL description An update for firefox is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Mozilla Firefox is an open source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 68.5.0 ESR. Security Fix(es) : * Mozilla: Missing bounds check on shared memory read in the parent process (CVE-2020-6796) * Mozilla: Memory safety bugs fixed in Firefox 73 and Firefox ESR 68.5 (CVE-2020-6800) * Mozilla: Incorrect parsing of template tag could result in JavaScript injection (CVE-2020-6798) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. last seen 2020-05-09 modified 2020-02-19 plugin id 133769 published 2020-02-19 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133769 title CentOS 6 : firefox (CESA-2020:0521) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2020-0512.NASL description An update for firefox is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Mozilla Firefox is an open source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 68.5.0 ESR. Security Fix(es) : * Mozilla: Missing bounds check on shared memory read in the parent process (CVE-2020-6796) * Mozilla: Memory safety bugs fixed in Firefox 73 and Firefox ESR 68.5 (CVE-2020-6800) * Mozilla: Incorrect parsing of template tag could result in JavaScript injection (CVE-2020-6798) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. last seen 2020-06-02 modified 2020-02-18 plugin id 133747 published 2020-02-18 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133747 title RHEL 8 : firefox (RHSA-2020:0512) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2020-0520.NASL description An update for firefox is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Mozilla Firefox is an open source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 68.5.0 ESR. Security Fix(es) : * Mozilla: Missing bounds check on shared memory read in the parent process (CVE-2020-6796) * Mozilla: Memory safety bugs fixed in Firefox 73 and Firefox ESR 68.5 (CVE-2020-6800) * Mozilla: Incorrect parsing of template tag could result in JavaScript injection (CVE-2020-6798) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. last seen 2020-06-02 modified 2020-02-18 plugin id 133752 published 2020-02-18 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133752 title RHEL 7 : firefox (RHSA-2020:0520) NASL family Windows NASL id MOZILLA_FIREFOX_68_5_ESR.NASL description The version of Firefox installed on the remote Windows host is prior to 68.5. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-06 advisory. Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-05-09 modified 2020-02-13 plugin id 133677 published 2020-02-13 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133677 title Mozilla Firefox ESR < 68.5 Multiple Vulnerabilities NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-202003-02.NASL description The remote host is affected by the vulnerability described in GLSA-202003-02 (Mozilla Firefox: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in Mozilla Firefox. Please review the CVE identifiers referenced below for details. Impact : A remote attacker could entice a user to view a specially crafted web page, possibly resulting in the execution of arbitrary code with the privileges of the process or a Denial of Service condition. Furthermore, a remote attacker may be able to perform Man-in-the-Middle attacks, obtain sensitive information, spoof the address bar, conduct clickjacking attacks, bypass security restrictions and protection mechanisms, or have other unspecified impact. Workaround : There is no known workaround at this time. last seen 2020-05-08 modified 2020-03-13 plugin id 134469 published 2020-03-13 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134469 title GLSA-202003-02 : Mozilla Firefox: Multiple vulnerabilities NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2020-0520.NASL description An update for firefox is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Mozilla Firefox is an open source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 68.5.0 ESR. Security Fix(es) : * Mozilla: Missing bounds check on shared memory read in the parent process (CVE-2020-6796) * Mozilla: Memory safety bugs fixed in Firefox 73 and Firefox ESR 68.5 (CVE-2020-6800) * Mozilla: Incorrect parsing of template tag could result in JavaScript injection (CVE-2020-6798) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. last seen 2020-05-09 modified 2020-02-19 plugin id 133768 published 2020-02-19 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133768 title CentOS 7 : firefox (CESA-2020:0520) NASL family MacOS X Local Security Checks NASL id MACOS_FIREFOX_68_5_ESR.NASL description The version of Firefox ESR installed on the remote macOS or Mac OS X host is prior to 68.4. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-06 advisory. Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-05-09 modified 2020-02-21 plugin id 133849 published 2020-02-21 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133849 title Mozilla Firefox ESR < 68.5 Multiple Vulnerabilities NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2020-0521.NASL description An update for firefox is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Mozilla Firefox is an open source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 68.5.0 ESR. Security Fix(es) : * Mozilla: Missing bounds check on shared memory read in the parent process (CVE-2020-6796) * Mozilla: Memory safety bugs fixed in Firefox 73 and Firefox ESR 68.5 (CVE-2020-6800) * Mozilla: Incorrect parsing of template tag could result in JavaScript injection (CVE-2020-6798) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. last seen 2020-06-02 modified 2020-02-18 plugin id 133753 published 2020-02-18 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133753 title RHEL 6 : firefox (RHSA-2020:0521) NASL family Windows NASL id MOZILLA_FIREFOX_73_0.NASL description The version of Firefox installed on the remote Windows host is prior to 73.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-05 advisory. Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-05-09 modified 2020-02-14 plugin id 133693 published 2020-02-14 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133693 title Mozilla Firefox < 73.0 NASL family Scientific Linux Local Security Checks NASL id SL_20200217_FIREFOX_ON_SL6_X.NASL description Security Fix(es) : - Mozilla: Missing bounds check on shared memory read in the parent process (CVE-2020-6796) - Mozilla: Memory safety bugs fixed in Firefox 73 and Firefox ESR 68.5 (CVE-2020-6800) last seen 2020-05-31 modified 2020-02-18 plugin id 133754 published 2020-02-18 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133754 title Scientific Linux Security Update : firefox on SL6.x i386/x86_64 (20200217) NASL family Slackware Local Security Checks NASL id SLACKWARE_SSA_2020-042-01.NASL description New mozilla-firefox packages are available for Slackware 14.2 and -current to fix security issues. last seen 2020-05-09 modified 2020-02-12 plugin id 133642 published 2020-02-12 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133642 title Slackware 14.2 / current : mozilla-firefox (SSA:2020-042-01) NASL family NewStart CGSL Local Security Checks NASL id NEWSTART_CGSL_NS-SA-2020-0026_FIREFOX.NASL description The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has firefox packages installed that are affected by multiple vulnerabilities: - A content process could have modified shared memory relating to crash reporting information, crash itself, and cause an out-of-bound write. This could have caused memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 73 and Firefox < ESR68.5. (CVE-2020-6796) - If a template tag was used in a select tag, the parser could be confused and allow JavaScript parsing and execution when it should not be allowed. A site that relied on the browser behaving correctly could suffer a cross-site scripting vulnerability as a result. In general, this flaw cannot be exploited through email in the Thunderbird product because scripting is disabled when reading mail, but is potentially a risk in browser or browser-like contexts. This vulnerability affects Thunderbird < 68.5, Firefox < 73, and Firefox < ESR68.5. (CVE-2020-6798) - Mozilla developers and community members reported memory safety bugs present in Firefox 72 and Firefox ESR 68.4. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. In general, these flaws cannot be exploited through email in the Thunderbird product because scripting is disabled when reading mail, but are potentially risks in browser or browser-like contexts. This vulnerability affects Thunderbird < 68.5, Firefox < 73, and Firefox < ESR68.5. (CVE-2020-6800) Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-06-05 modified 2020-05-27 plugin id 136906 published 2020-05-27 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/136906 title NewStart CGSL CORE 5.04 / MAIN 5.04 : firefox Multiple Vulnerabilities (NS-SA-2020-0026) NASL family Debian Local Security Checks NASL id DEBIAN_DSA-4620.NASL description Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code. last seen 2020-05-09 modified 2020-02-13 plugin id 133657 published 2020-02-13 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133657 title Debian DSA-4620-1 : firefox-esr - security update NASL family SuSE Local Security Checks NASL id SUSE_SU-2020-0384-1.NASL description This update for MozillaFirefox fixes the following issues : Firefox Extended Support Release 68.5.0 ESR - CVE-2020-6796 (bmo#1610426) Missing bounds check on shared memory read in the parent process - CVE-2020-6797 (bmo#1596668) Extensions granted downloads.open permission could open arbitrary applications on Mac OSX - CVE-2020-6798 (bmo#1602944) Incorrect parsing of template tag could result in JavaScript injection - CVE-2020-6799 (bmo#1606596) Arbitrary code execution when opening pdf links from other applications, when Firefox is configured as default pdf reader - CVE-2020-6800 (bmo#1595786, bmo#1596706, bmo#1598543, bmo#1604851, bmo#1605777, bmo#1608580, bmo#1608785) Memory safety bugs fixed in Firefox 73 and Firefox ESR 68.5 - Fixed: Fixed various issues opening files with spaces in their path (bmo#1601905, bmo#1602726) Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-09 modified 2020-02-18 plugin id 133762 published 2020-02-18 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133762 title SUSE SLED12 / SLES12 Security Update : MozillaFirefox (SUSE-SU-2020:0384-1) NASL family Scientific Linux Local Security Checks NASL id SL_20200217_FIREFOX_ON_SL7_X.NASL description Security Fix(es) : - Mozilla: Missing bounds check on shared memory read in the parent process (CVE-2020-6796) - Mozilla: Memory safety bugs fixed in Firefox 73 and Firefox ESR 68.5 (CVE-2020-6800) - Mozilla: Incorrect parsing of template tag could result in JavaScript injection (CVE-2020-6798) last seen 2020-05-31 modified 2020-02-18 plugin id 133755 published 2020-02-18 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133755 title Scientific Linux Security Update : firefox on SL7.x x86_64 (20200217)
Redhat
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