Out-of-bounds Write Affecting cyrus-sasl package, versions <2.1.27-r5


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.51% (77th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-ALPINE313-CYRUSSASL-1067006
  • published 19 Dec 2019
  • disclosed 19 Dec 2019

How to fix?

Upgrade Alpine:3.13 cyrus-sasl to version 2.1.27-r5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream cyrus-sasl package and not the cyrus-sasl package as distributed by Alpine. See How to fix? for Alpine:3.13 relevant fixed versions and status.

cyrus-sasl (aka Cyrus SASL) 2.1.27 has an out-of-bounds write leading to unauthenticated remote denial-of-service in OpenLDAP via a malformed LDAP packet. The OpenLDAP crash is ultimately caused by an off-by-one error in _sasl_add_string in common.c in cyrus-sasl.

References

CVSS Scores

version 3.1
Expand this section

NVD

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

Red Hat

7.5 high
Expand this section

SUSE

7.5 high