Out-of-bounds Write Affecting nspr package, versions <0:4.21.0-1.43.amzn1


0.0
high

Snyk CVSS

    Attack Complexity High
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.33% (71st percentile)
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NVD
8.8 high
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SUSE
8.1 high
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Red Hat
8.1 high

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  • Snyk ID SNYK-AMZN201803-NSPR-1721501
  • published 27 Sep 2021
  • disclosed 8 Jan 2020

How to fix?

Upgrade Amazon-Linux:2018.03 nspr to version 0:4.21.0-1.43.amzn1 or higher.
This issue was patched in ALAS-2020-1355.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nspr package and not the nspr package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

When encrypting with a block cipher, if a call to NSC_EncryptUpdate was made with data smaller than the block size, a small out of bounds write could occur. This could have caused heap corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.