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

critical Nessus Plugin ID 150659
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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.

See Also

https://bugzilla.suse.com/1141322

https://bugzilla.suse.com/1158527

https://bugzilla.suse.com/1159819

https://bugzilla.suse.com/1168669

https://bugzilla.suse.com/1169746

https://bugzilla.suse.com/1170908

https://bugzilla.suse.com/1171978

https://bugzilla.suse.com/1173032

http://www.nessus.org/u?2066354a

https://www.suse.com/security/cve/CVE-2019-11727

https://www.suse.com/security/cve/CVE-2019-11745

https://www.suse.com/security/cve/CVE-2019-17006

https://www.suse.com/security/cve/CVE-2020-12399

https://www.suse.com/security/cve/CVE-2020-12402

Plugin Details

Severity: Critical

ID: 150659

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

Version: 1.2

Type: local

Agent: unix

Published: 6/10/2021

Updated: 6/10/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2019-17006

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

Temporal Vector: E:U/RL:OF/RC:C

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: E:U/RL:O/RC:C

Vulnerability Information

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

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

Exploit Ease: No known 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

SuSE: SUSE-SU-2020:14418-1

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