Out-of-bounds Write Affecting nss package, versions <2:3.42.1-1+deb10u2


0.0
high

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.37% (73rd 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-DEBIAN10-NSS-535472
  • published 24 Nov 2019
  • disclosed 8 Jan 2020

How to fix?

Upgrade Debian:10 nss to version 2:3.42.1-1+deb10u2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nss package and not the nss package as distributed by Debian. See How to fix? for Debian:10 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.