Test ID:	1.3.6.1.4.1.25623.1.0.893327
Category:	Debian Local Security Checks
Title:	Debian: Security Advisory (DLA-3327-1)
Summary:	The remote host is missing an update for the Debian 'nss' package(s) announced via the DLA-3327-1 advisory.
Description:	Summary: The remote host is missing an update for the Debian 'nss' package(s) announced via the DLA-3327-1 advisory. Vulnerability Insight: Multiple security vulnerabilities have been discovered in nss, the Network Security Service libraries. 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. 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. 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. CVE-2020-12403 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. CVE-2023-0767 Christian Holler discovered that incorrect handling of PKCS 12 Safe Bag attributes may result in execution of arbitrary code if a specially crafted PKCS 12 certificate bundle is processed. For Debian 10 buster, these problems have been fixed in version 2:3.42.1-1+deb10u6. We recommend that you upgrade your nss packages. For the detailed security status of nss please refer to its security tracker page at: [link moved to references] Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: [link moved to references] Affected Software/OS: 'nss' package(s) on Debian 10. Solution: Please install the updated package(s). CVSS Score: 6.4 CVSS Vector: AV:N/AC:L/Au:N/C:P/I:N/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2020-12400 https://bugzilla.mozilla.org/show_bug.cgi?id=1623116 https://www.mozilla.org/security/advisories/mfsa2020-36/ https://www.mozilla.org/security/advisories/mfsa2020-39/ https://lists.debian.org/debian-lts-announce/2023/02/msg00021.html Common Vulnerability Exposure (CVE) ID: CVE-2020-12401 https://bugzilla.mozilla.org/show_bug.cgi?id=1631573 Common Vulnerability Exposure (CVE) ID: CVE-2020-12403 https://bugzilla.redhat.com/show_bug.cgi?id=1868931 https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.55_release_notes Common Vulnerability Exposure (CVE) ID: CVE-2020-6829 https://bugzilla.mozilla.org/show_bug.cgi?id=1631583 Common Vulnerability Exposure (CVE) ID: CVE-2023-0767 https://alas.aws.amazon.com/AL2/ALAS-2023-1992.html https://bugzilla.mozilla.org/show_bug.cgi?id=1804640 https://www.mozilla.org/security/advisories/mfsa2023-05/ https://www.mozilla.org/security/advisories/mfsa2023-06/ https://www.mozilla.org/security/advisories/mfsa2023-07/
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