SUSE SLES11 Security Update : mozilla-nspr, mozilla-nss (SUSE-SU-2020:14418-1)

critical Nessus Plugin ID 150659

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Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLES11 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2020:14418-1 advisory.

- A vulnerability exists where it possible to force Network Security Services (NSS) to sign CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in CertificateRequest in TLS 1.3. PKCS#1 v1.5 signatures should not be used for TLS 1.3 messages. This vulnerability affects Firefox < 68. (CVE-2019-11727)

- When encrypting with a block cipher, if a call to NSC_EncryptUpdate was made with data smaller than the block size, a small out of bounds write could occur. This could have caused heap corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71. (CVE-2019-11745)

- In Network Security Services (NSS) before 3.46, several cryptographic primitives had missing length checks. In cases where the application calling the library did not perform a sanity check on the inputs it could result in a crash due to a buffer overflow. (CVE-2019-17006)

- NSS has shown timing differences when performing DSA signatures, which was exploitable and could eventually leak private keys. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9. (CVE-2020-12399)

- 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. (CVE-2020-12402)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

Plugin Details

Severity: Critical

ID: 150659

File Name: suse_SU-2020-14418-1.nasl

Version: 1.3

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 6/10/2021

Updated: 12/26/2023

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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: 8.8

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:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:mozilla-nss-tools, p-cpe:/a:novell:suse_linux:libfreebl3-32bit, p-cpe:/a:novell:suse_linux:libfreebl3, p-cpe:/a:novell:suse_linux:mozilla-nspr-32bit, p-cpe:/a:novell:suse_linux:mozilla-nspr-devel, p-cpe:/a:novell:suse_linux:mozilla-nss-32bit, cpe:/o:novell:suse_linux:11, p-cpe:/a:novell:suse_linux:mozilla-nss-certs, p-cpe:/a:novell:suse_linux:libsoftokn3, p-cpe:/a:novell:suse_linux:mozilla-nss, p-cpe:/a:novell:suse_linux:mozilla-nss-devel, p-cpe:/a:novell:suse_linux:mozilla-nss-certs-32bit, p-cpe:/a:novell:suse_linux:libsoftokn3-32bit, p-cpe:/a:novell:suse_linux:mozilla-nspr

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/6/2020

Vulnerability Publication Date: 7/9/2019

Reference Information

CVE: CVE-2019-11727, CVE-2019-11745, CVE-2019-17006, CVE-2020-12399, CVE-2020-12402

IAVA: 2019-A-0231-S, 2019-A-0438-S, 2020-A-0287-S

SuSE: SUSE-SU-2020:14418-1

Detections

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