What is the severity of CVE-2017-7797?

CVE-2017-7797 has a high severity rating due to its potential for cross-origin exposure of header names.

How do I fix CVE-2017-7797?

To mitigate CVE-2017-7797, upgrade your Mozilla Firefox to version 55 or later.

Which versions of Firefox are affected by CVE-2017-7797?

CVE-2017-7797 affects all versions of Mozilla Firefox prior to version 55.

What type of vulnerability is CVE-2017-7797?

CVE-2017-7797 is a vulnerability related to inadequate same-origin protections for response header name interning.

What impact does CVE-2017-7797 have on users?

CVE-2017-7797 can allow attackers to access response headers across different origins, potentially leading to data exposure.

Vulnerability/
CVE-2017-7797

high

7.5

CWE

346

8/8/2017

11/6/2018

5/8/2024

CVE-2017-7797

First published: Tue Aug 08 2017(Updated: )

Response header name interning does not have same-origin protections and these headers are stored in a global registry. This allows stored header names to be available cross-origin.

Credit: security@mozilla.org

Affected Software	Affected Version	How to fix
Mozilla Firefox	<55	55
	<55	55
Mozilla Firefox	<55.0

Remedy

https://bugzilla.mozilla.org/show_bug.cgi?id=1334776

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

MFSA2017-18

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

What is the severity of CVE-2017-7797?
CVE-2017-7797 has a high severity rating due to its potential for cross-origin exposure of header names.
How do I fix CVE-2017-7797?
To mitigate CVE-2017-7797, upgrade your Mozilla Firefox to version 55 or later.
Which versions of Firefox are affected by CVE-2017-7797?
CVE-2017-7797 affects all versions of Mozilla Firefox prior to version 55.
What type of vulnerability is CVE-2017-7797?
CVE-2017-7797 is a vulnerability related to inadequate same-origin protections for response header name interning.
What impact does CVE-2017-7797 have on users?
CVE-2017-7797 can allow attackers to access response headers across different origins, potentially leading to data exposure.

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collector/mitre-cve
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vendor/mozilla
canonical/mozilla firefox

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Resources

Contact

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Frequently Asked Questions

What is the severity of CVE-2017-7797?
CVE-2017-7797 has a high severity rating due to its potential for cross-origin exposure of header names.
How do I fix CVE-2017-7797?
To mitigate CVE-2017-7797, upgrade your Mozilla Firefox to version 55 or later.
Which versions of Firefox are affected by CVE-2017-7797?
CVE-2017-7797 affects all versions of Mozilla Firefox prior to version 55.
What type of vulnerability is CVE-2017-7797?
CVE-2017-7797 is a vulnerability related to inadequate same-origin protections for response header name interning.
What impact does CVE-2017-7797 have on users?
CVE-2017-7797 can allow attackers to access response headers across different origins, potentially leading to data exposure.