CVE-2020-12403

nss: Network Security Services (NSS) is a set of libraries designed to support the cross-platform development of security-...

CVE-2020-12403 is fixed in 12 products on 1 platform, first by libnss3 2:3.35-2ubuntu2.12, released August 17, 2020. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
9.1
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0154
75th percentile

Network Security Services (NSS) is a set of libraries designed to support the cross-platform development of security-enabled client and server applications. Security Fix(es): * nss: Side channel attack on ECDSA signature generation (CVE-2020-6829) * nss: P-384 and P-521 implementation uses a side-channel vulnerable modular inversion function (CVE-2020-12400) * 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. Bug Fix(es): * Support key wrap/unwrap with RSA-OAEP (BZ#1896431) * 1536bit group from RFC3526 is allowed in FIPS mode when in policy DH-MIN is set to be lower than 1536 (BZ#1896432) * when NSS_SDB_USE_CACHE not set, after curl access https, dentry increase but never released - consider alternative algorithm for benchmarking ACCESS call in sdb_measureAccess [rhel-8] (BZ#1896933) * Policy should allow overriding library defaults (BZ#1898702) * KDF-self-tests-induced changes for nss in RHEL 8.4 (BZ#1898953) * nss: non-blocksize requests to IKEv1 KDF returns bogus output (BZ#1904408)

Where it's fixed

ProductFixed inFixReleased
Linux
libnss3 · Ubuntu 18.04.6 LTS (bionic) 2:3.35-2ubuntu2.12 libnss3 2:3.35-2ubuntu2.12 Aug 17, 2020
libnss3 · Ubuntu 20.04 LTS (focal) 2:3.49.1-1ubuntu1.5 libnss3 2:3.49.1-1ubuntu1.5 Aug 17, 2020
libnss3-tools · Ubuntu 18.04.6 LTS (bionic) 2:3.35-2ubuntu2.12 libnss3-tools 2:3.35-2ubuntu2.12 Aug 17, 2020
libnss3-tools · Ubuntu 20.04 LTS (focal) 2:3.49.1-1ubuntu1.5 libnss3-tools 2:3.49.1-1ubuntu1.5 Aug 17, 2020
nss · RHEL 8 0:3.53.1-17.el8_3 RHSA-2021:0538 Feb 16, 2021
nss · ol 8 0:3.53.1-17.el8_3 ELSA-2021-0538 Feb 17, 2021
nss-devel · RHEL 8 0:3.53.1-17.el8_3 RHSA-2021:0538 Feb 16, 2021
nss-devel · ol 8 0:3.53.1-17.el8_3 ELSA-2021-0538 Feb 17, 2021
nss-softokn · RHEL 8 0:3.53.1-17.el8_3 RHSA-2021:0538 Feb 16, 2021
nss-softokn · ol 8 0:3.53.1-17.el8_3 ELSA-2021-0538 Feb 17, 2021
nss-softokn-devel · RHEL 8 0:3.53.1-17.el8_3 RHSA-2021:0538 Feb 16, 2021
nss-softokn-devel · ol 8 0:3.53.1-17.el8_3 ELSA-2021-0538 Feb 17, 2021
nss-softokn-freebl · RHEL 8 0:3.53.1-17.el8_3 RHSA-2021:0538 Feb 16, 2021
nss-softokn-freebl · ol 8 0:3.53.1-17.el8_3 ELSA-2021-0538 Feb 17, 2021
nss-softokn-freebl-devel · RHEL 8 0:3.53.1-17.el8_3 RHSA-2021:0538 Feb 16, 2021
nss-softokn-freebl-devel · ol 8 0:3.53.1-17.el8_3 ELSA-2021-0538 Feb 17, 2021
nss-sysinit · RHEL 8 0:3.53.1-17.el8_3 RHSA-2021:0538 Feb 16, 2021
nss-sysinit · ol 8 0:3.53.1-17.el8_3 ELSA-2021-0538 Feb 17, 2021
nss-tools · RHEL 8 0:3.53.1-17.el8_3 RHSA-2021:0538 Feb 16, 2021
nss-tools · ol 8 0:3.53.1-17.el8_3 ELSA-2021-0538 Feb 17, 2021
nss-util · RHEL 8 0:3.53.1-17.el8_3 RHSA-2021:0538 Feb 16, 2021
nss-util · ol 8 0:3.53.1-17.el8_3 ELSA-2021-0538 Feb 17, 2021
nss-util-devel · RHEL 8 0:3.53.1-17.el8_3 RHSA-2021:0538 Feb 16, 2021
nss-util-devel · ol 8 0:3.53.1-17.el8_3 ELSA-2021-0538 Feb 17, 2021

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.