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             AUSCERT External Security Bulletin Redistribution

                               ESB-2021.1301
        Multiple NSS vulnerabilities CVE-2020-6829, CVE-2020-12400,
                    CVE-2020-12401, and CVE-2020-12402
                               16 April 2021

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           F5OS
                   Traffix SDC
Publisher:         F5 Networks
Operating System:  Network Appliance
Impact/Access:     Access Confidential Data -- Remote with User Interaction
                   Denial of Service        -- Remote with User Interaction
Resolution:        None
CVE Names:         CVE-2020-12403 CVE-2020-12402 CVE-2020-12401
                   CVE-2020-12400 CVE-2020-6829 

Reference:         ESB-2021.0986
                   ESB-2020.3355

Original Bulletin: 
   https://support.f5.com/csp/article/K61267093
   https://support.f5.com/csp/article/K13290208

Comment: This bulletin contains two (2) F5 Networks security advisories.

- --------------------------BEGIN INCLUDED TEXT--------------------

K61267093: Multiple NSS vulnerabilities CVE-2020-6829, CVE-2020-12400,
CVE-2020-12401, and CVE-2020-12402

Original Publication Date: 16 Apr, 2021

Security Advisory Description

o CVE-2020-6829

    When performing EC scalar point multiplication, the wNAF point
    multiplication algorithm was used; which leaked partial information about
    the nonce used during signature generation. Given an electro-magnetic trace
    of a few signature generations, the private key could have been computed.
    This vulnerability affects Firefox < 80 and Firefox for Android < 80.

  o CVE-2020-12400

    When converting coordinates from projective to affine, the modular
    inversion was not performed in constant time, resulting in a possible
    timing-based side channel attack. This vulnerability affects Firefox < 80
    and Firefox for Android < 80.

  o CVE-2020-12401

    During ECDSA signature generation, padding applied in the nonce designed to
    ensure constant-time scalar multiplication was removed, resulting in
    variable-time execution dependent on secret data. This vulnerability
    affects Firefox < 80 and Firefox for Android < 80.

  o CVE-2020-12402

    During RSA key generation, bignum implementations used a variation of the
    Binary Extended Euclidean Algorithm which entailed significantly
    input-dependent flow. This allowed an attacker able to perform
    electromagnetic-based side channel attacks to record traces leading to the
    recovery of the secret primes. *Note:* An unmodified Firefox browser does
    not generate RSA keys in normal operation and is not affected, but products
    built on top of it might. This vulnerability affects Firefox < 78.

Impact

CVE-2020-6829, CVE-2020-12400, and CVE-2020-12401

Given a small number of ECDSA signatures, this information can be used to steal
the private key. The highest threat from this vulnerability is to data
confidentiality.

CVE-2020-12402

An attacker with sufficient access to mount cache timing attacks during the RSA
key generation process could recover the private key. The highest threat to
this flaw is to confidentiality.

Security Advisory Status

F5 Product Development has assigned ID 1004309 (F5OS) and ID SDC-1054 (Traffix)
to this vulnerability.

To determine if your product and version have been evaluated for this
vulnerability, refer to the Applies to (see versions) box. To determine if your
release is known to be vulnerable, the components or features that are affected
by the vulnerability, and for information about releases, point releases, or
hotfixes that address the vulnerability, refer to the following table. For more
information about security advisory versioning, refer to K51812227:
Understanding security advisory versioning.

Note: After a fix is introduced for a given minor branch, that fix applies to
all subsequent maintenance and point releases for that branch, and no
additional fixes for that branch will be listed in the table. For example, when
a fix is introduced in 14.1.2.3, the fix also applies to 14.1.2.4, and all
later 14.1.x releases (14.1.3.x., 14.1.4.x). For more information, refer to
K51812227: Understanding security advisory versioning. Additionally, software
versions preceding those listed in the following table have reached the End of
Technical Support (EoTS) phase of their lifecycle and are no longer evaluated
for security issues. For more information, refer to the Security hotfixes
section of K4602: Overview of the F5 security vulnerability response policy.

+------------+------+--------------+----------+----------+------+-------------+
|            |      |Versions known|Fixes     |          |CVSSv3|Vulnerable   |
|Product     |Branch|to be         |introduced|Severity  |score^|component or |
|            |      |vulnerable^1  |in        |          |2     |feature      |
+------------+------+--------------+----------+----------+------+-------------+
|            |16.x  |None          |Not       |          |      |             |
|            |      |              |applicable|          |      |             |
|            +------+--------------+----------+          |      |             |
|            |15.x  |None          |Not       |          |      |             |
|            |      |              |applicable|          |      |             |
|            +------+--------------+----------+          |      |             |
|            |14.x  |None          |Not       |          |      |             |
|BIG-IP (all |      |              |applicable|Not       |      |             |
|modules)    +------+--------------+----------+vulnerable|None  |None         |
|            |13.x  |None          |Not       |          |      |             |
|            |      |              |applicable|          |      |             |
|            +------+--------------+----------+          |      |             |
|            |12.x  |None          |Not       |          |      |             |
|            |      |              |applicable|          |      |             |
|            +------+--------------+----------+          |      |             |
|            |11.x  |None          |Not       |          |      |             |
|            |      |              |applicable|          |      |             |
+------------+------+--------------+----------+----------+------+-------------+
|            |8.x   |None          |Not       |          |      |             |
|            |      |              |applicable|          |      |             |
|BIG-IQ      +------+--------------+----------+          |      |             |
|Centralized |7.x   |None          |Not       |Not       |None  |None         |
|Management  |      |              |applicable|vulnerable|      |             |
|            +------+--------------+----------+          |      |             |
|            |6.x   |None          |Not       |          |      |             |
|            |      |              |applicable|          |      |             |
+------------+------+--------------+----------+----------+------+-------------+
|F5OS        |1.x   |1.1.0         |None      |Medium    |4.4   |NSS          |
+------------+------+--------------+----------+----------+------+-------------+
|Traffix SDC |5.x   |5.1.0         |None      |Medium    |4.4   |NSS          |
+------------+------+--------------+----------+----------+------+-------------+

^1F5 evaluates only software versions that have not yet reached the End of
Technical Support (EoTS) phase of their lifecycle.

^2The CVSSv3 score link takes you to a resource outside of AskF5, and it is
possible that the document may be removed without our knowledge.

Recommended Actions

If you are running a version listed in the Versions known to be vulnerable
column, you can eliminate this vulnerability by installing a version listed in
the Fixes introduced in column. If the Fixes introduced in column does not list
a version for your branch, then no update candidate currently exists for that
branch and F5 recommends upgrading to a version with the fix (refer to the
table).

If the Fixes introduced in column lists a version prior to the one you are
running, in the same branch, then your version should have the fix.

Mitigation

None

Supplemental Information

o K41942608: Overview of security advisory articles
  o K4602: Overview of the F5 security vulnerability response policy
  o K4918: Overview of the F5 critical issue hotfix policy
  o K8986: F5 software lifecycle policy
  o K9502: BIG-IP hotfix and point release matrix
  o K13123: Managing BIG-IP product hotfixes (11.x - 16.x)
  o K167: Downloading software and firmware from F5
  o K9970: Subscribing to email notifications regarding F5 products
  o K9957: Creating a custom RSS feed to view new and updated documents


- --------------------------------------------------------------------------------


K13290208: NSS vulnerability CVE-2020-12403

Original Publication Date: 16 Apr, 2021

Security Advisory Description

A flaw was found in the way CHACHA20-POLY1305 was implemented in NSS. When
using multi-part Chacha20, it could cause out-of-bounds reads. This issue was
fixed by explicitly disabling multi-part ChaCha20 (which was not functioning
correctly) and strictly enforcing tag length. The highest threat from this
vulnerability is to confidentiality and system availability. (CVE-2020-12403)

Impact

The highest threat from this vulnerability is to confidentiality and system
availability.

Security Advisory Status

F5 Product Development has assigned ID 1004309 (F5OS) and ID SDC-1054 (Traffix)
to this vulnerability.

To determine if your product and version have been evaluated for this
vulnerability, refer to the Applies to (see versions) box. To determine if your
release is known to be vulnerable, the components or features that are affected
by the vulnerability, and for information about releases, point releases, or
hotfixes that address the vulnerability, refer to the following table. For more
information about security advisory versioning, refer to K51812227:
Understanding security advisory versioning.

Note: After a fix is introduced for a given minor branch, that fix applies to
all subsequent maintenance and point releases for that branch, and no
additional fixes for that branch will be listed in the table. For example, when
a fix is introduced in 14.1.2.3, the fix also applies to 14.1.2.4, and all
later 14.1.x releases (14.1.3.x., 14.1.4.x). For more information, refer to
K51812227: Understanding security advisory versioning. Additionally, software
versions preceding those listed in the following table have reached the End of
Technical Support (EoTS) phase of their lifecycle and are no longer evaluated
for security issues. For more information, refer to the Security hotfixes
section of K4602: Overview of the F5 security vulnerability response policy.

+------------+------+--------------+----------+----------+------+-------------+
|            |      |Versions known|Fixes     |          |CVSSv3|Vulnerable   |
|Product     |Branch|to be         |introduced|Severity  |score^|component or |
|            |      |vulnerable^1  |in        |          |2     |feature      |
+------------+------+--------------+----------+----------+------+-------------+
|            |16.x  |None          |Not       |          |      |             |
|            |      |              |applicable|          |      |             |
|            +------+--------------+----------+          |      |             |
|            |15.x  |None          |Not       |          |      |             |
|            |      |              |applicable|          |      |             |
|            +------+--------------+----------+          |      |             |
|            |14.x  |None          |Not       |          |      |             |
|BIG-IP (all |      |              |applicable|Not       |      |             |
|modules)    +------+--------------+----------+vulnerable|None  |None         |
|            |13.x  |None          |Not       |          |      |             |
|            |      |              |applicable|          |      |             |
|            +------+--------------+----------+          |      |             |
|            |12.x  |None          |Not       |          |      |             |
|            |      |              |applicable|          |      |             |
|            +------+--------------+----------+          |      |             |
|            |11.x  |None          |Not       |          |      |             |
|            |      |              |applicable|          |      |             |
+------------+------+--------------+----------+----------+------+-------------+
|            |8.x   |None          |Not       |          |      |             |
|            |      |              |applicable|          |      |             |
|BIG-IQ      +------+--------------+----------+          |      |             |
|Centralized |7.x   |None          |Not       |Not       |None  |None         |
|Management  |      |              |applicable|vulnerable|      |             |
|            +------+--------------+----------+          |      |             |
|            |6.x   |None          |Not       |          |      |             |
|            |      |              |applicable|          |      |             |
+------------+------+--------------+----------+----------+------+-------------+
|F5OS        |1.x   |1.1.0         |None      |High      |6.8   |NSS          |
+------------+------+--------------+----------+----------+------+-------------+
|Traffix SDC |5.x   |5.1.0         |None      |High      |6.8   |NSS          |
+------------+------+--------------+----------+----------+------+-------------+

^1F5 evaluates only software versions that have not yet reached the End of
Technical Support (EoTS) phase of their lifecycle.

^2The CVSSv3 score link takes you to a resource outside of AskF5, and it is
possible that the document may be removed without our knowledge.

Recommended Actions

If you are running a version listed in the Versions known to be vulnerable
column, you can eliminate this vulnerability by installing a version listed in
the Fixes introduced in column. If the Fixes introduced in column does not list
a version for your branch, then no update candidate currently exists for that
branch and F5 recommends upgrading to a version with the fix (refer to the
table).

If the Fixes introduced in column lists a version prior to the one you are
running, in the same branch, then your version should have the fix.

Mitigation

None

Supplemental Information

o K41942608: Overview of security advisory articles
  o K4602: Overview of the F5 security vulnerability response policy
  o K4918: Overview of the F5 critical issue hotfix policy
  o K8986: F5 software lifecycle policy
  o K9502: BIG-IP hotfix and point release matrix
  o K13123: Managing BIG-IP product hotfixes (11.x - 16.x)
  o K167: Downloading software and firmware from F5
  o K9970: Subscribing to email notifications regarding F5 products
  o K9957: Creating a custom RSS feed to view new and updated documents

- --------------------------END INCLUDED TEXT--------------------

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===========================================================================
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