Access Restriction Bypass Affecting gnutls28 package, versions <3.5.3-4


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.62% (79th percentile)

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  • Snyk ID SNYK-DEBIAN10-GNUTLS28-340717
  • published 27 Sep 2016
  • disclosed 27 Sep 2016

How to fix?

Upgrade Debian:10 gnutls28 to version 3.5.3-4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gnutls28 package and not the gnutls28 package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

The gnutls_ocsp_resp_check_crt function in lib/x509/ocsp.c in GnuTLS before 3.4.15 and 3.5.x before 3.5.4 does not verify the serial length of an OCSP response, which might allow remote attackers to bypass an intended certificate validation mechanism via vectors involving trailing bytes left by gnutls_malloc.