Buffer Overflow Affecting firefox package, versions <0:68.2.0-1.0.1.el7_7


Severity

Recommended
critical

Based on Oracle Linux security rating

    Threat Intelligence

    EPSS
    1.39% (87th percentile)

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  • Snyk ID SNYK-ORACLE7-FIREFOX-2542271
  • published 10 Apr 2022
  • disclosed 8 Jan 2020

How to fix?

Upgrade Oracle:7 firefox to version 0:68.2.0-1.0.1.el7_7 or higher.
This issue was patched in ELSA-2019-3193.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Oracle. See How to fix? for Oracle:7 relevant fixed versions and status.

An attacker could have caused 4 bytes of HMAC output to be written past the end of a buffer stored on the stack. This could be used by an attacker to execute arbitrary code or more likely lead to a crash. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.

CVSS Scores

version 3.1
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NVD

8.8 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
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SUSE

8.8 high
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Red Hat

8.8 high