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CVE-2016-1632

The Extensions subsystem in Google Chrome before 49.0.2623.75 does not properly maintain own...

8.8 HighFix available

The Extensions subsystem in Google Chrome before 49.0.2623.75 does not properly maintain own properties, which allows remote attackers to bypass intended access restrictions via crafted JavaScript code that triggers an incorrect cast, related to extensions/renderer/v8_helpers.h and gin/converter.h.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

1.35%Down 0.6 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 8.8

The Extensions subsystem in Google Chrome before 49.0.2623.75 does not properly maintain own properties, which allows remote attackers to bypass intended access restrictions via crafted JavaScript code that triggers an incorrect cast, related to extensions/renderer/v8_helpers.h and gin/converter.h.

Record
CVE-2016-1632
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0
6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness
CWE-264
Updated
2026-11-02
CVE List No score

The Extensions subsystem in Google Chrome before 49.0.2623.75 does not properly maintain own properties, which allows remote attackers to bypass intended access restrictions via crafted JavaScript code that triggers an incorrect cast, related to extensions/renderer/v8_helpers.h and gin/converter.h.

Record
CVE-2016-1632
Updated
2026-11-02
EUVDEUVD-2016-2727 No score

The Extensions subsystem in Google Chrome before 49.0.2623.75 does not properly maintain own properties, which allows remote attackers to bypass intended access restrictions via crafted JavaScript code that triggers an incorrect cast, related to extensions/renderer/v8_helpers.h and gin/converter.h.

Record
EUVD-2016-2727
Updated
2026-11-03
GitHub AdvisoriesGHSA-ffm3-7v29-m7x8 8.8

The Extensions subsystem in Google Chrome before 49.0.2623.75 does not properly maintain own...

The Extensions subsystem in Google Chrome before 49.0.2623.75 does not properly maintain own properties, which allows remote attackers to bypass intended access restrictions via crafted JavaScript code that triggers an incorrect cast, related to extensions/renderer/v8_helpers.h and gin/converter.h.

Record
GHSA-ffm3-7v29-m7x8
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2016-1632 8.8

The Extensions subsystem in Google Chrome before 49.0.2623.75 does not properly maintain own properties, which allows remote attackers to bypass intended access restrictions via crafted JavaScript code that triggers an incorrect cast, related to extensions/renderer/v8_helpers.h and gin/converter.h.

Record
UBUNTU-CVE-2016-1632
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVMGASA-2016-0127 No score

Updated chromium-browser-stable packages fix security vulnerability

Chromium-browser-stable 49.0.2623.108 fixes security issues:

Multiple security issues were found in upstream chromium 49.0.2623.87: an out-of-bounds read problem in V8 (CVE-2016-1646), use-after-free bugs in Navigation (CVE-2016-1647) and Extensions (CVE-2016-1648); a buffer overflow in libANGLE (CVE-2016-1649), various security issues found in internal audits, fuzzing, and other initiatives (CVE-2016-1650); multiple vulnerabilities in V8 were fixed in 4.9.385.33.

The ImageInputType::ensurePrimaryContent function in WebKit/Source/core/html/forms/ImageInputType.cpp in Blink, as used in Google Chrome before 49.0.2623.87, does not properly maintain the user agent shadow DOM, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors that leverage "type confusion." (CVE-2016-1643)

WebKit/Source/core/layout/LayoutObject.cpp in Blink, as used in Google Chrome before 49.0.2623.87, does not properly restrict relayout scheduling, which allows remote attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact via a crafted HTML document. (CVE-2016-1644)

Multiple integer signedness errors in the opj_j2k_update_image_data function in j2k.c in OpenJPEG, as used in PDFium in Google Chrome before 49.0.2623.87, allow remote attackers to cause a denial of service (incorrect cast and out-of-bounds write) or possibly have unspecified other impact via crafted JPEG 2000 data. (CVE-2016-1645)

The ContainerNode::parserRemoveChild function in WebKit/Source/core/dom/ContainerNode.cpp in Blink, as used in Google Chrome before 49.0.2623.75, mishandles widget updates, which makes it easier for remote attackers to bypass the Same Origin Policy via a crafted web site. (CVE-2016-1630)

The PPB_Flash_MessageLoop_Impl::InternalRun function in content/renderer/pepper/ppb_flash_message_loop_impl.cc in the Pepper plugin in Google Chrome before 49.0.2623.75 mishandles nested message loops, which allows remote attackers to bypass the Same Origin Policy via a crafted web site. (CVE-2016-1631)

The Extensions subsystem in Google Chrome before 49.0.2623.75 does not properly maintain own properties, which allows remote attackers to bypass intended access restrictions via crafted JavaScript code that triggers an incorrect cast, related to extensions/renderer/v8_helpers.h and gin/converter.h. (CVE-2016-1632)

Use-after-free vulnerability in Blink, as used in Google Chrome before 49.0.2623.75, allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors. (CVE-2016-1633)

Use-after-free vulnerability in the StyleResolver::appendCSSStyleSheet function in WebKit/Source/core/css/resolver/StyleResolver.cpp in Blink, as used in Google Chrome before 49.0.2623.75, allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted web site that triggers Cascading Style Sheets (CSS) style invalidation during a certain subtree-removal action. (2016-1634)

extensions/renderer/render_frame_observer_natives.cc in Google Chrome before 49.0.2623.75 does not properly consider object lifetimes and re-entrancy issues during OnDocumentElementCreated handling, which allows remote attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact via unknown vectors. (CVE-2016-1635)

The PendingScript::notifyFinished function in WebKit/Source/core/dom/PendingScript.cpp in Google Chrome before 49.0.2623.75 relies on memory-cache information about integrity-check occurrences instead of integrity-check successes, which allows remote attackers to bypass the Subresource Integrity (aka SRI) protection mechanism by triggering two loads of the same resource. (CVE-2016-1636)

The SkATan2_255 function in effects/gradients/SkSweepGradient.cpp in Skia, as used in Google Chrome before 49.0.2623.75, mishandles arctangent calculations, which allows remote attackers to obtain sensitive…

Record
MGASA-2016-0127
Updated
2026-11-02
OSVopenSUSE-SU-2024:10171-1 No score

chromedriver-55.0.2883.75-3.1 on GA media

These are all security issues fixed in the chromedriver-55.0.2883.75-3.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10171-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:12948-1 No score

ungoogled-chromium-113.0.5672.92-1.1 on GA media

These are all security issues fixed in the ungoogled-chromium-113.0.5672.92-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:12948-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
chromium-browser
Debian:8
before 49.0.2623.75-1~deb8u1, plus listed versions
41.0.2272.118-142.0.2311.135-142.0.2311.135-1~deb8u142.0.2311.135-242.0.2311.90-1
Show 34 moreShow less
42.0.2311.90-1~deb8u142.0.2311.90-243.0.2357.124-143.0.2357.124-243.0.2357.124-343.0.2357.130-143.0.2357.65-143.0.2357.65-1~deb8u143.0.2357.81-144.0.2403.107-144.0.2403.107-244.0.2403.157-144.0.2403.89-144.0.2403.89-1~deb8u145.0.2454.101-145.0.2454.85-145.0.2454.85-1~deb8u146.0.2490.13-146.0.2490.71-146.0.2490.71-1~deb8u147.0.2526.111-147.0.2526.16-147.0.2526.73-147.0.2526.73-1~deb8u147.0.2526.80-147.0.2526.80-1~deb8u147.0.2526.80-247.0.2526.80-348.0.2564.116-148.0.2564.116-1~deb8u148.0.2564.23-148.0.2564.82-148.0.2564.82-1~deb8u148.0.2564.82-2
49.0.2623.75-1~deb8u1
chromium-browser-stable
Mageia:5
before 49.0.2623.108-1.1.mga5
49.0.2623.108-1.1.mga5
chromium-browser
Red Hat:rhel_extras:6
before 0:49.0.2623.75-1.el6
0:49.0.2623.75-1.el6
chromium-browser-debuginfo
Red Hat:rhel_extras:6
before 0:49.0.2623.75-1.el6
0:49.0.2623.75-1.el6
chromium-browser
Ubuntu:14.04:LTS
before 49.0.2623.87-0ubuntu0.14.04.1.1112, plus listed versions
29.0.1547.65-0ubuntu231.0.1650.63-0ubuntu1~20131204.132.0.1700.107-0ubuntu1~20140204.977.133.0.1750.152-0ubuntu1~pkg995.134.0.1847.116-0ubuntu2
Show 17 moreShow less
36.0.1985.125-0ubuntu1.14.04.0~pkg102937.0.2062.94-0ubuntu0.14.04.1~pkg104237.0.2062.120-0ubuntu0.14.04.1~pkg104938.0.2125.111-0ubuntu0.14.04.1.106139.0.2171.65-0ubuntu0.14.04.1.106440.0.2214.94-0ubuntu0.14.04.1.106840.0.2214.111-0ubuntu0.14.04.1.106941.0.2272.76-0ubuntu0.14.04.1.107643.0.2357.81-0ubuntu0.14.04.1.108943.0.2357.130-0ubuntu0.14.04.1.109244.0.2403.89-0ubuntu0.14.04.1.109545.0.2454.85-0ubuntu0.14.04.1.109745.0.2454.101-0ubuntu0.14.04.1.109947.0.2526.73-0ubuntu0.14.04.1.110647.0.2526.106-0ubuntu0.14.04.1.110748.0.2564.82-0ubuntu0.14.04.1.110848.0.2564.116-0ubuntu0.14.04.1.1111
49.0.2623.87-0ubuntu0.14.04.1.1112
chromium
openSUSE:Tumbleweed
before 55.0.2883.75-3.1
55.0.2883.75-3.1
chromium
openSUSE:Tumbleweed
before 113.0.5672.92-1.1
113.0.5672.92-1.1

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2016-1632 is a high vulnerability (CVSS 8.8) in Google Chrome, published March 5, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.35%, the 71st percentile. Fixed in chromium-browser 49.0.2623.75-1~deb8u1.

References

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Left out here: 2,223 references and the rest of 1 source description. The JSON record has them.

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