Heap-based Buffer Overflow Affecting nss package, versions <0:3.53.1-11.el8_2


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.4% (74th percentile)

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  • Snyk ID SNYK-RHEL8-NSS-3790685
  • published 26 Jul 2021
  • disclosed 26 Dec 2019

How to fix?

Upgrade RHEL:8 nss to version 0:3.53.1-11.el8_2 or higher.
This issue was patched in RHSA-2020:3280.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nss package and not the nss package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

In Network Security Services (NSS) before 3.46, several cryptographic primitives had missing length checks. In cases where the application calling the library did not perform a sanity check on the inputs it could result in a crash due to a buffer overflow.

CVSS Scores

version 3.1
Expand this section

NVD

9.8 critical
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
Expand this section

SUSE

6.8 medium