CVE-2017-5403: Use After Free

Reference Links

• https://bugzilla.mozilla.org/show_bug.cgi?id=1340186
• https://www.mozilla.org/en-US/security/advisories/mfsa2017-05/
• https://www.mozilla.org/en-US/security/advisories/mfsa2017-09/
• http://www.securityfocus.com/bid/96691
• http://www.securitytracker.com/id/1037966
• https://www.mozilla.org/security/advisories/mfsa2017-05/
• https://www.mozilla.org/security/advisories/mfsa2017-09/

Parent vulnerabilities

(Appears in the following advisories)

• MFSA2017-05
• MFSA2017-09

Peer vulnerabilities

(Found alongside the following vulnerabilities)

• CVE-2017-5400
• CVE-2017-5401
• CVE-2017-5402
• CVE-2017-5403
• CVE-2017-5404
• CVE-2017-5406
• CVE-2017-5407
• CVE-2017-5410
• CVE-2017-5411
• CVE-2017-5409
• CVE-2017-5408
• CVE-2017-5412
• CVE-2017-5413
• CVE-2017-5414
• CVE-2017-5415
• CVE-2017-5416
• CVE-2017-5417
• CVE-2017-5425
• CVE-2017-5426
• CVE-2017-5427
• CVE-2017-5418
• CVE-2017-5419
• CVE-2017-5420
• CVE-2017-5405
• CVE-2017-5421
• CVE-2017-5422
• CVE-2017-5399
• CVE-2017-5398

Frequently Asked Questions

• What is the severity of CVE-2017-5403?

  CVE-2017-5403 has a severity rating classified as medium due to the potential for crashes and possible exploitation.

• How do I fix CVE-2017-5403?

  To fix CVE-2017-5403, ensure that you update to the latest version of Mozilla Firefox or Mozilla Thunderbird beyond version 52.

• What are the products affected by CVE-2017-5403?

  CVE-2017-5403 affects Mozilla Firefox and Mozilla Thunderbird versions up to but not including version 52.

• Can CVE-2017-5403 be exploited remotely?

  CVE-2017-5403 poses risks that could potentially be exploited remotely due to its nature of affecting web applications.

• What happens if CVE-2017-5403 is not addressed?

  If CVE-2017-5403 is not addressed, users may experience crashes and may be vulnerable to potential exploit scenarios.