An update for nss is now available for openEuler-20.03-LTS Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2021-1115 Final 1.0 1.0 2021-04-07 Initial 2021-04-07 2021-04-07 openEuler SA Tool V1.0 2021-04-07 nss security update An update for nss is now available for openEuler-20.03-LTS. Network Security Services (NSS) is a set of libraries designed to support cross-platform development of security-enabled client and server applications. Applications built with NSS can support SSL v2 and v3, TLS, PKCS #5, PKCS #7, PKCS #11, PKCS #12, S/MIME, X.509 v3 certificates, and other security standards. Security Fix(es): 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. The highest threat from this vulnerability is to confidentiality and system availability.(CVE-2020-12403) A flaw was found in the way NSS handled CCS (ChangeCipherSpec) messages in TLS 1.3. This flaw allows a remote attacker to send multiple CCS messages, causing a denial of service for servers compiled with the NSS library. The highest threat from this vulnerability is to system availability. This flaw affects NSS versions before 3.58.(CVE-2020-25648) In Network Security Services before 3.44, a malformed Netscape Certificate Sequence can cause NSS to crash, resulting in a denial of service.(CVE-2019-17007) An update for nss is now available for openEuler-20.03-LTS. openEuler Security has rated this update as having a security impact of high. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. High nss https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1115 https://openeuler.org/en/security/cve/detail.html?id=CVE-2020-12403 https://openeuler.org/en/security/cve/detail.html?id=CVE-2020-25648 https://openeuler.org/en/security/cve/detail.html?id=CVE-2019-17007 https://nvd.nist.gov/vuln/detail/CVE-2020-12403 https://nvd.nist.gov/vuln/detail/CVE-2020-25648 https://nvd.nist.gov/vuln/detail/CVE-2019-17007 openEuler-20.03-LTS nss-3.54.0-6.oe1.aarch64.rpm nss-help-3.54.0-6.oe1.aarch64.rpm nss-util-3.54.0-6.oe1.aarch64.rpm nss-debugsource-3.54.0-6.oe1.aarch64.rpm nss-util-devel-3.54.0-6.oe1.aarch64.rpm nss-softokn-devel-3.54.0-6.oe1.aarch64.rpm nss-devel-3.54.0-6.oe1.aarch64.rpm nss-softokn-3.54.0-6.oe1.aarch64.rpm nss-debuginfo-3.54.0-6.oe1.aarch64.rpm nss-3.54.0-6.oe1.src.rpm nss-util-3.54.0-6.oe1.x86_64.rpm nss-debugsource-3.54.0-6.oe1.x86_64.rpm nss-3.54.0-6.oe1.x86_64.rpm nss-help-3.54.0-6.oe1.x86_64.rpm nss-softokn-3.54.0-6.oe1.x86_64.rpm nss-debuginfo-3.54.0-6.oe1.x86_64.rpm nss-softokn-devel-3.54.0-6.oe1.x86_64.rpm nss-util-devel-3.54.0-6.oe1.x86_64.rpm nss-devel-3.54.0-6.oe1.x86_64.rpm 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. The highest threat from this vulnerability is to confidentiality and system availability. 2021-04-07 CVE-2020-12403 openEuler-20.03-LTS Medium 6.8 AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:H nss security update 2021-04-07 https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1115 A flaw was found in the way NSS handled CCS (ChangeCipherSpec) messages in TLS 1.3. This flaw allows a remote attacker to send multiple CCS messages, causing a denial of service for servers compiled with the NSS library. The highest threat from this vulnerability is to system availability. This flaw affects NSS versions before 3.58. 2021-04-07 CVE-2020-25648 openEuler-20.03-LTS High 7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H nss security update 2021-04-07 https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1115 In Network Security Services before 3.44, a malformed Netscape Certificate Sequence can cause NSS to crash, resulting in a denial of service. 2021-04-07 CVE-2019-17007 openEuler-20.03-LTS High 7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H nss security update 2021-04-07 https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1115