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Gentoo Linux Security Advisory GLSA 202101-04 |
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https://security.gentoo.org/ |
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Severity: Normal |
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Title: Mozilla Firefox: Remote code execution |
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Date: January 10, 2021 |
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Bugs: #764161 |
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ID: 202101-04 |
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Synopsis |
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======== |
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|
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A use-after-free in Mozilla Firefox's SCTP handling may allow remote |
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code execution. |
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Background |
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========== |
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|
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Mozilla Firefox is a popular open-source web browser from the Mozilla |
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project. |
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 www-client/firefox < 84.0.2 >= 78.6.1:0/esr78 |
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>= 84.0.2 |
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2 www-client/firefox-bin < 84.0.2 >= 78.6.1:0/esr78 |
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>= 84.0.2 |
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------------------------------------------------------------------- |
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2 affected packages |
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|
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Description |
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=========== |
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|
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A use-after-free bug was discovered in Mozilla Firefox's handling of |
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SCTP. |
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|
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Impact |
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====== |
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|
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A remote attacker could possibly execute arbitrary code with the |
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privileges of the process, or cause a Denial of Service condition. |
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|
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Workaround |
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========== |
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There is no known workaround at this time. |
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Resolution |
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========== |
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All Firefox ESR users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot -v ">=www-client/firefox-78.6.1:0/esr78" |
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|
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All Firefox ESR binary users should upgrade to the latest version: |
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|
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# emerge --sync |
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# emerge --ask --oneshot -v ">=www-client/firefox-bin-78.6.1:0/esr78" |
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|
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All Firefox users should upgrade to the latest version: |
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|
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=www-client/firefox-84.0.2" |
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|
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All Firefox binary users should upgrade to the latest version: |
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|
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=www-client/firefox-bin-84.0.2" |
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|
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References |
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========== |
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|
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[ 1 ] CVE-2020-16044 |
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https://nvd.nist.gov/vuln/detail/CVE-2020-16044 |
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[ 2 ] MFSA-2021-01 |
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https://www.mozilla.org/en-US/security/advisories/mfsa2021-01/ |
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|
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Availability |
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============ |
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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https://security.gentoo.org/glsa/202101-04 |
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Concerns? |
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========= |
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users' machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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https://bugs.gentoo.org. |
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License |
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======= |
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Copyright 2021 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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|
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https://creativecommons.org/licenses/by-sa/2.5 |
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