CVE-2020-15999: Google Chrome Heap Buffer Overflow Vulnerability
First published: Mon Oct 19 2020(Updated: )
### Impact A memory corruption bug(Heap overflow) in the FreeType font rendering library. > This can be exploited by attackers to execute arbitrary code by using specially crafted fonts with embedded PNG images . As per https://www.secpod.com/blog/chrome-zero-day-under-active-exploitation-patch-now/ Google is aware of reports that an exploit for CVE-2020-15999 exists in the wild. ### Patches Upgrade to 85.3.130 or higher ### References - https://www.secpod.com/blog/chrome-zero-day-under-active-exploitation-patch-now/ - https://www.zdnet.com/article/google-releases-chrome-security-update-to-patch-actively-exploited-zero-day/ - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15999 - https://magpcss.org/ceforum/viewtopic.php?f=10&t=17942 To review the `CEF/Chromium` patch see https://bitbucket.org/chromiumembedded/cef/commits/cd6cbe008b127990036945fb75e7c2c1594ab10d
Credit: chrome-cve-admin@google.com Sergei Glazunov Google Project Zero chrome-cve-admin@google.com chrome-cve-admin@google.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/chromium | 90.0.4430.212-1~deb10u1 | |
| debian/freetype | 2.9.1-3+deb10u3 2.9.1-3+deb10u2 2.10.4+dfsg-1+deb11u1 2.12.1+dfsg-5 2.13.2+dfsg-1 | |
| Mozilla Firefox ESR | <78.5 | 78.5 |
| Google Android | ||
| Google Chrome | <86.0.4240.111 | |
| Freetype Freetype | >=2.6.0<2.10.4 | |
| Debian Debian Linux | =10.0 | |
| Fedoraproject Fedora | =31 | |
| openSUSE Backports SLE | =15.0-sp2 | |
| Mozilla Thunderbird | <78.5 | 78.5 |
| Google Chrome | <86.0.4240.111 | 86.0.4240.111 |
| nuget/CefSharp.Wpf.HwndHost | <85.3.130 | 85.3.130 |
| nuget/CefSharp.WinForms | <85.3.130 | 85.3.130 |
| nuget/CefSharp.Wpf | <85.3.130 | 85.3.130 |
| nuget/CefSharp.Common | <85.3.130 | 85.3.130 |
| Mozilla Firefox | <83 | 83 |
| Google Chrome FreeType |
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Reference Links
- https://www.openwall.com/lists/oss-security/2020/10/20/7
- https://savannah.nongnu.org/bugs/?59308
- https://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=a3bab162b2ae616074c8877a04556932998aeacd
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2103
- https://security-tracker.debian.org/tracker/CVE-2020-15999
- https://bugzilla.mozilla.org/show_bug.cgi?id=1672223
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-51/
- https://android.googlesource.com/platform/external/freetype/+/358c238408a1fdc357d9afef6811369a7701e004
- https://source.android.com/docs/security/bulletin/2021-01-01 (Advisory)
- https://crbug.com/1139963
- https://chromereleases.googleblog.com/2020/10/stable-channel-update-for-desktop_20.html (Advisory)
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00016.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J3QVIGAAJ4D62YEJAJJWMCCBCOQ6TVL7/
- https://security.gentoo.org/glsa/202011-12
- http://seclists.org/fulldisclosure/2020/Nov/33
- https://security.gentoo.org/glsa/202012-04
- https://www.debian.org/security/2021/dsa-4824
- https://googleprojectzero.blogspot.com/p/rca-cve-2020-15999.html
- https://security.gentoo.org/glsa/202401-19
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/J3QVIGAAJ4D62YEJAJJWMCCBCOQ6TVL7/
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-52/
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-50/
- https://github.com/cefsharp/CefSharp/security/advisories/GHSA-pv36-h7jh-qm62
- https://www.nuget.org/packages/CefSharp.WinForms
- https://www.nuget.org/packages/CefSharp.Wpf
- https://www.nuget.org/packages/CefSharp.Wpf.HwndHost
- https://nvd.nist.gov/vuln/detail/CVE-2020-15999
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J3QVIGAAJ4D62YEJAJJWMCCBCOQ6TVL7
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/J3QVIGAAJ4D62YEJAJJWMCCBCOQ6TVL7
- https://www.nuget.org/packages/CefSharp.Common
- https://github.com/advisories/GHSA-pv36-h7jh-qm62 (Advisory)
Parent vulnerabilities
(Appears in the following advisories)
Peer vulnerabilities
(Found alongside the following vulnerabilities)
- CVE-2020-26951
- CVE-2020-16012
- CVE-2020-26953
- CVE-2020-26956
- CVE-2020-26958
- CVE-2020-26959
- CVE-2020-26960
- CVE-2020-15999
- CVE-2020-26961
- CVE-2020-26965
- CVE-2020-26966
- CVE-2020-26968
- CVE-2020-16000
- CVE-2020-16001
- CVE-2020-16002
- CVE-2020-16003
- CVE-2020-26952
- CVE-2020-26954
- CVE-2020-26955
- CVE-2020-26957
- CVE-2020-26962
- CVE-2020-26963
- CVE-2020-26964
- CVE-2020-26967
- CVE-2020-26969
Frequently Asked Questions
What is CVE-2020-15999?
CVE-2020-15999 is a Heap Buffer Overflow Vulnerability in Google Chrome caused by an integer overflow in the Load_SBit_Png function in Freetype.
How severe is CVE-2020-15999?
CVE-2020-15999 has a severity rating of 6.5 out of 10.
Which software is affected by CVE-2020-15999?
Google Chrome, Mozilla Thunderbird, Mozilla Firefox, Mozilla Firefox ESR, and Google Android are affected by CVE-2020-15999.
How can CVE-2020-15999 be fixed?
To fix CVE-2020-15999, update to the latest version of Google Chrome, Mozilla Thunderbird, Mozilla Firefox, Mozilla Firefox ESR, or Google Android.
Where can I find more information about CVE-2020-15999?
You can find more information about CVE-2020-15999 at the following references: [Bugzilla](https://bugzilla.mozilla.org/show_bug.cgi?id=1672223), [Mozilla Security Advisory](https://www.mozilla.org/en-US/security/advisories/mfsa2020-51/), [Android Source](https://android.googlesource.com/platform/external/freetype/+/358c238408a1fdc357d9afef6811369a7701e004).
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