Access Restriction Bypass Affecting nss package, versions <2:3.15.3-1


Severity

0.0
medium
0
10

    Threat Intelligence

    EPSS
    0.8% (82nd percentile)

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  • Snyk ID SNYK-DEBIAN8-NSS-421185
  • published 18 Nov 2013
  • disclosed 18 Nov 2013

How to fix?

Upgrade Debian:8 nss to version 2:3.15.3-1 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:8 relevant fixed versions and status.

The CERT_VerifyCert function in lib/certhigh/certvfy.c in Mozilla Network Security Services (NSS) 3.15 before 3.15.3 provides an unexpected return value for an incompatible key-usage certificate when the CERTVerifyLog argument is valid, which might allow remote attackers to bypass intended access restrictions via a crafted certificate.

CVSS Scores

version 3.1
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Snyk

5.4 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    Low
  • Integrity (I)
    Low
  • Availability (A)
    None
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NVD

5.4 medium
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Red Hat

4.3 medium