Heap buffer overflow in SwiftShader in Google Chrome prior to 84.0.4147.135 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Multiple security issues were discovered in the Chromium web browser, which could result in the execution of arbitrary code, denial of service or information disclosure.

This update for opera fixes the following issues :

opera was updated to version 71.0.3770.228

  - DNA-87466 Hide extensions icon is black in dark theme

  - DNA-88580 Implement search_in_tabs telemetry benchmark

  - DNA-88591 Allow to scroll down the Keyboards Shortcuts     section with URL

  - DNA-88693 Random crash in SmartFilesBrowserTest

  - DNA-88793 change VPN disclaimer modal layout

  - DNA-88799 Only active workspaces and active messengers     should be listed in keyboard shortcuts settings

  - DNA-88838 add automatic VPN connection preference     setting

  - DNA-88870 Align VPN popup to new design

  - DNA-88900 Turn off Tutorials in Opera GX &ndash;
    implementation

  - DNA-88931 Add info about channel and product (OPR,     OPRGX) to rollout requests

  - DNA-88940 Allow continue-shopping|booking-host-override     switch to handle host and path

  - DNA-88946 Auto-connect VPN after browser startup only     for existing VPN users

  - DNA-89009 Change URL for search-suggestions

  - DNA-89021 Make RH test driver pack to a separate archive

  - DNA-89150 Unhardcode &lsquo;From&rsquo; and     &lsquo;To&rsquo; strings in Advanced History Search

  - DNA-89175 Desktop without a flow paring should not     initialize in browser startup

Opera was updated to version 71.0.3770.198

  - CHR-8106 Update chromium on desktop-stable-85-3770 to     85.0.4183.121

  - DNA-85648 Reconnecting Flow with iOS is unstable

  - DNA-87130 Spinner is stretched instead of clipped

  - DNA-87989 In Find in Page, &ldquo;No matches&rdquo;
    doesn&rsquo;t go away after deleting all text

  - DNA-88098 Data URLs entries should not open new tab     after click on new history page

  - DNA-88267 Extra semicolon in Russian BABE translation

  - DNA-88312 [Win] Downloads file drag and drop     doesn&rsquo;t work in Opera

  - DNA-88363 Add premium extension functionality

  - DNA-88580 Implement search_in_tabs telemetry benchmark

  - DNA-88611 Black font on a dark background in sync login     dialog

  - DNA-88626 Disable #easy-files on desktop-stable-85-xxxx

  - DNA-88701 String &ldquo;Type a shortcut&rdquo; is     hardcoded

  - DNA-88755 Crash at     extensions::WebstoreOneClickInstallerUIImpl::
    RemoveAllInfobarsExcept(opera::ExtensionInstallInfoBarDe     legate*)

  - DNA-88797 Change &lsquo;Register&rsquo; to     &lsquo;Tab&rsquo; in German

  - DNA-88851 [History][Resized window] Button and date     input look bad

  - DNA-88958 Crash at net::`anonymous     namespace&rdquo;::Escape

  - The update to chromium 85.0.4183.121 fixes following     issues :

  - CVE-2020-15960, CVE-2020-15961, CVE-2020-15962,     CVE-2020-15963, CVE-2020-15965, CVE-2020-15966,     CVE-2020-15964

  - Update to version 71.0.3770.148

  - CHR-8091 Update chromium on desktop-stable-85-3770 to     85.0.4183.102

  - DNA-87785 [Mac] &ldquo;Alitools&rdquo; text in extension     toolbar overlaps Install button

  - DNA-87935 Make SSD smaller by 25%

  - DNA-87963 Hidden Avira extension in avira_2 edition

  - DNA-88015 [MyFlow] Desktop doesn&rsquo;t show itself in     devices list

  - DNA-88469 Add context menu options to configure     shortcuts

  - DNA-88496 Define a/b test in ab_tests.json

  - DNA-88537 Don&rsquo;t filter out hashes from feature     reference groups coming from rollout

  - DNA-88580 Implement search_in_tabs telemetry benchmark

  - DNA-88604 [History panel] Search bar covers the     &ldquo;Clear browsing data&rdquo; button

  - DNA-88619 String &lsquo;Download complete&rsquo; is cut     on download popup

  - DNA-88645 Remove option should not be available for last     workspace

  - DNA-88718 [History panel] fix delete button overflow     issue

  - The update to chromium 85.0.4183.102 fixes following     issues :

  - CVE-2020-6573, CVE-2020-6574, CVE-2020-6575,     CVE-2020-6576, CVE-2020-15959

  - Complete Opera 71.0 changelog at:
    https://blogs.opera.com/desktop/changelog-for-71/

  - Update to version 70.0.3728.144

  - CHR-8057 Update chromium on desktop-stable-84-3728 to     84.0.4147.135

  - DNA-88027 [Mac] Downloads icon disappears when downloads     popup is shown

  - DNA-88204 Crash at     opera::DownloadItemView::OnMousePressed (ui::MouseEvent     const&)

  - The update to chromium 84.0.4147.135 fixes following     issues :

  - CVE-2020-6556

Update to Chromium 85.0.4183.83. Bugs fixed, security holes patched, and features added. Hold on to your butts.

List of CVEs resolved with this update: CVE-2020-6532 CVE-2020-6537 CVE-2020-6538 CVE-2020-6539 CVE-2020-6540 CVE-2020-6541 CVE-2020-6542 CVE-2020-6543 CVE-2020-6544 CVE-2020-6545 CVE-2020-6546 CVE-2020-6547 CVE-2020-6548 CVE-2020-6549 CVE-2020-6550 CVE-2020-6551 CVE-2020-6552 CVE-2020-6553 CVE-2020-6554 CVE-2020-6555 CVE-2020-6556 CVE-2020-6559 CVE-2020-6560 CVE-2020-6561 CVE-2020-6562 CVE-2020-6563 CVE-2020-6564 CVE-2020-6565 CVE-2020-6566 CVE-2020-6567 CVE-2020-6568 CVE-2020-6569 CVE-2020-6570 CVE-2020-6571

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for chromium fixes the following issues :

  - Update to 84.0.4147.135 (boo#1175505) :

  - CVE-2020-6556: Heap buffer overflow in SwiftShader

The remote Redhat Enterprise Linux 6 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2020:3560 advisory.

  - chromium-browser: Use after free in ANGLE (CVE-2020-6542)

  - chromium-browser: Use after free in task scheduling (CVE-2020-6543)

  - chromium-browser: Use after free in media (CVE-2020-6544, CVE-2020-6549)

  - chromium-browser: Use after free in audio (CVE-2020-6545)

  - chromium-browser: Inappropriate implementation in installer (CVE-2020-6546)

  - chromium-browser: Incorrect security UI in media (CVE-2020-6547)

  - chromium-browser: Heap buffer overflow in Skia (CVE-2020-6548)

  - chromium-browser: Use after free in IndexedDB (CVE-2020-6550)

  - chromium-browser: Use after free in WebXR (CVE-2020-6551)

  - chromium-browser: Use after free in Blink (CVE-2020-6552)

  - chromium-browser: Use after free in offline mode (CVE-2020-6553)

  - chromium-browser: Use after free in extensions (CVE-2020-6554)

  - chromium-browser: Out of bounds read in WebGL (CVE-2020-6555)

  - chromium-browser: Heap buffer overflow in SwiftShader (CVE-2020-6556)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote host is affected by the vulnerability described in GLSA-202008-10 (Chromium, Google Chrome: Heap buffer overflow)

    A buffer overflow has been discovered in Chromium and Google Chrome&rsquo;s       SwiftShader component.
  Impact :

    A remote attacker, by enticing a user to visit a specially crafted       website, could execute arbitrary code with the privileges of the process.
  Workaround :

    There is no known workaround at this time.

The version of Google Chrome installed on the remote Windows host is prior to 84.0.4147.135. It is, therefore, affected by a vulnerability as referenced in the 2020_08_stable-channel-update-for-desktop_18 advisory. Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The version of Google Chrome installed on the remote macOS host is prior to 84.0.4147.135. It is, therefore, affected by a vulnerability as referenced in the 2020_08_stable-channel-update-for-desktop_18 advisory. Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Chrome Releases reports :

This release contains one security fix :

- [1115345] High CVE-2020-6556: Heap buffer overflow in SwiftShader.
Reported by Alison Huffman, Microsoft Browser Vulnerability Research on 2020-08-12

The version of Google Chrome installed on the remote host is prior to 84.0.4147.135. It is, therefore, affected by a vulnerability as referenced in the 2020_08_stable-channel-update-for-desktop_18 advisory. Note that Nessus Network Monitor has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
144672	Debian DSA-4824-1 : chromium - security update	Nessus	Debian Local Security Checks	critical
141905	openSUSE Security Update : opera (openSUSE-2020-1713)	Nessus	SuSE Local Security Checks	critical
140550	Fedora 31 : chromium (2020-88bf0a76d1)	Nessus	Fedora Local Security Checks	high
140307	Fedora 32 : chromium (2020-a1f140614b)	Nessus	Fedora Local Security Checks	high
139902	openSUSE Security Update : chromium (openSUSE-2020-1263)	Nessus	SuSE Local Security Checks	high
139899	openSUSE Security Update : chromium (openSUSE-2020-1260)	Nessus	SuSE Local Security Checks	high
139860	RHEL 6 : chromium-browser (RHSA-2020:3560)	Nessus	Red Hat Local Security Checks	high
139834	GLSA-202008-10 : Chromium, Google Chrome: Heap buffer overflow	Nessus	Gentoo Local Security Checks	high
139695	Google Chrome < 84.0.4147.135 Vulnerability	Nessus	Windows	high
139694	Google Chrome < 84.0.4147.135 Vulnerability	Nessus	MacOS X Local Security Checks	high
139683	FreeBSD : chromium -- heap buffer overflow (64575bb6-e188-11ea-beed-e09467587c17)	Nessus	FreeBSD Local Security Checks	high
701284	Google Chrome < 84.0.4147.135 Vulnerability	Nessus Network Monitor	Web Clients	high

Detections

Analytics

CVE-2020-6556

high

Tenable Plugins

critical

critical

high

high

high

high

high

high

high

high

high

high