critical
9.8
CWE
119 787
Advisory Published
Updated

CVE-2019-11693: Buffer Overflow

First published: Tue May 21 2019(Updated: )

The `bufferdata` function in WebGL is vulnerable to a buffer overflow with specific graphics drivers on Linux. This could result in malicious content freezing a tab or triggering a potentially exploitable crash. *Note: this issue only occurs on Linux. Other operating systems are unaffected.* External Reference: <a href="https://www.mozilla.org/en-US/security/advisories/mfsa2019-14/#CVE-2019-11693">https://www.mozilla.org/en-US/security/advisories/mfsa2019-14/#CVE-2019-11693</a>

Credit: security@mozilla.org security@mozilla.org

Affected SoftwareAffected VersionHow to fix
Mozilla Thunderbird<60.7
60.7
Mozilla Firefox ESR<60.7
60.7
Mozilla Firefox<67
67
All of
Any of
Mozilla Firefox<67.0
Mozilla Firefox ESR<60.7.0
Mozilla Thunderbird<60.7.0
Linux Linux kernel
Mozilla Firefox<67.0
Mozilla Firefox ESR<60.7.0
Mozilla Thunderbird<60.7.0
Linux Linux kernel
ubuntu/firefox<67.0+
67.0+
ubuntu/firefox<67.0+
67.0+
ubuntu/firefox<67.0+
67.0+
ubuntu/firefox<67.0+
67.0+
ubuntu/firefox<67.0+
67.0+
ubuntu/firefox<67.0+
67.0+
ubuntu/firefox<67.0+
67.0+
ubuntu/firefox<67.0+
67.0+
ubuntu/firefox<67.0+
67.0+
ubuntu/firefox<67.0+
67.0+
ubuntu/firefox<67.0+
67.0+
ubuntu/firefox<67.0+
67.0+
ubuntu/firefox<67.0+
67.0+
ubuntu/firefox<67.0
67.0
ubuntu/firefox<67.0+
67.0+
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
ubuntu/thunderbird<60.7
60.7
ubuntu/thunderbird<1:60.7.0+
1:60.7.0+
debian/firefox
125.0.3-1
debian/firefox-esr
91.12.0esr-1~deb10u1
115.10.0esr-1~deb10u1
115.7.0esr-1~deb11u1
115.10.0esr-1~deb11u1
115.7.0esr-1~deb12u1
115.10.0esr-1~deb12u1
115.10.0esr-1
debian/thunderbird
1:91.12.0-1~deb10u1
1:115.10.1-1~deb10u1
1:115.7.0-1~deb11u1
1:115.10.1-1~deb11u1
1:115.7.0-1~deb12u1
1:115.10.1-1~deb12u1
1:115.10.1-1

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID?

    The vulnerability ID is CVE-2019-11693.

  • What is the severity of the vulnerability?

    The severity of the vulnerability is critical with a CVSS score of 9.8.

  • Which graphics drivers on Linux are affected by this vulnerability?

    The specific graphics drivers on Linux that are affected by this vulnerability have not been specified.

  • Which operating systems are affected by this vulnerability?

    This vulnerability only occurs on Linux. Other operating systems are unaffected.

  • How can I fix this vulnerability?

    Update your Mozilla Firefox or Mozilla Thunderbird to version 67.0+ or apply the appropriate patch according to your Linux distribution.

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