Detections
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RHEL 7 : nss and nspr (RHSA-2020:4076)
critical Nessus Plugin ID 141059
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Synopsis
The remote Red Hat host is missing one or more security updates.Description
The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4076 advisory.- nss: Out-of-bounds read when importing curve25519 private key (CVE-2019-11719)
- nss: PKCS#1 v1.5 signatures can be used for TLS 1.3 (CVE-2019-11727)
- 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: TLS 1.3 HelloRetryRequest downgrade request sets client into invalid state (CVE-2019-17023)
- nss: P-384 and P-521 implementation uses a side-channel vulnerable modular inversion function (CVE-2020-12400)
- nss: ECDSA timing attack mitigation bypass (CVE-2020-12401)
- nss: Side channel vulnerabilities during RSA key generation (CVE-2020-12402)
- nss: CHACHA20-POLY1305 decryption with undersized tag leads to out-of-bounds read (CVE-2020-12403)
- nss: Side channel attack on ECDSA signature generation (CVE-2020-6829)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the affected packages.See Also
https://access.redhat.com/security/cve/CVE-2019-11719
https://access.redhat.com/security/cve/CVE-2019-11727
https://access.redhat.com/security/cve/CVE-2019-11756
https://access.redhat.com/security/cve/CVE-2019-17006
https://access.redhat.com/security/cve/CVE-2019-17023
https://access.redhat.com/security/cve/CVE-2020-6829
https://access.redhat.com/security/cve/CVE-2020-12400
https://access.redhat.com/security/cve/CVE-2020-12401
https://access.redhat.com/security/cve/CVE-2020-12402
https://access.redhat.com/security/cve/CVE-2020-12403
https://access.redhat.com/errata/RHSA-2020:4076
https://bugzilla.redhat.com/1728436
https://bugzilla.redhat.com/1730988
https://bugzilla.redhat.com/1774835
https://bugzilla.redhat.com/1775916
https://bugzilla.redhat.com/1791225
https://bugzilla.redhat.com/1826187
https://bugzilla.redhat.com/1826231
https://bugzilla.redhat.com/1851294
Plugin Details
Severity: Critical
ID: 141059
File Name: redhat-RHSA-2020-4076.nasl
Version: 1.9
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 9/30/2020
Updated: 5/25/2023
Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2019-17006
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:nspr, p-cpe:/a:redhat:enterprise_linux:nspr-devel, p-cpe:/a:redhat:enterprise_linux:nss, p-cpe:/a:redhat:enterprise_linux:nss-devel, p-cpe:/a:redhat:enterprise_linux:nss-pkcs11-devel, p-cpe:/a:redhat:enterprise_linux:nss-softokn, p-cpe:/a:redhat:enterprise_linux:nss-softokn-devel, p-cpe:/a:redhat:enterprise_linux:nss-softokn-freebl, p-cpe:/a:redhat:enterprise_linux:nss-softokn-freebl-devel, p-cpe:/a:redhat:enterprise_linux:nss-sysinit, p-cpe:/a:redhat:enterprise_linux:nss-tools, p-cpe:/a:redhat:enterprise_linux:nss-util, p-cpe:/a:redhat:enterprise_linux:nss-util-devel
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Ease: No known exploits are available
Patch Publication Date: 9/29/2020
Vulnerability Publication Date: 7/9/2019
Reference Information
CVE: CVE-2019-11719, CVE-2019-11727, CVE-2019-11756, CVE-2019-17006, CVE-2019-17023, CVE-2020-12400, CVE-2020-12401, CVE-2020-12402, CVE-2020-12403, CVE-2020-6829