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redhatRedHatRHSA-2021:1026
HistoryMar 30, 2021 - 7:24 a.m.

(RHSA-2021:1026) Moderate: nss-softokn security update

2021-03-3007:24:03
access.redhat.com
62
nss-softokn
security update
use-after-free
cryptographic primitives
chacha20-poly1305
cve-2019-11756
cve-2019-17006
cve-2020-12403

CVSS2

10

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.004

Percentile

73.6%

The nss-softokn package provides the Network Security Services Softoken Cryptographic Module.

Security Fix(es):

  • nss: Use-after-free in sftk_FreeSession due to improper refcounting (CVE-2019-11756)

  • nss: Check length of inputs for cryptographic primitives (CVE-2019-17006)

  • nss: CHACHA20-POLY1305 decryption with undersized tag leads to out-of-bounds read (CVE-2020-12403)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

CVSS2

10

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.004

Percentile

73.6%