==========================================================================
Ubuntu Security Notice USN-4060-1
July 16, 2019
nss vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 19.04
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS
Summary:
Several security issues were fixed in NSS.
Software Description:
– nss: Network Security Service library
Details:
Henry Corrigan-Gibbs discovered that NSS incorrectly handled importing
certain curve25519 private keys. An attacker could use this issue to cause
NSS to crash, resulting in a denial of service, or possibly obtain
sensitive information. (CVE-2019-11719)
Hubert Kario discovered that NSS incorrectly handled PKCS#1 v1.5 signatures
when using TLSv1.3. An attacker could possibly use this issue to trick NSS
into using PKCS#1 v1.5 signatures, contrary to expectations. This issue
only applied to Ubuntu 19.04. (CVE-2019-11727)
Jonas Allmann discovered that NSS incorrectly handled certain p256-ECDH
public keys. An attacker could possibly use this issue to cause NSS to
crash, resulting in a denial of service. (CVE-2019-11729)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 19.04:
libnss3 2:3.42-1ubuntu2.1
Ubuntu 18.04 LTS:
libnss3 2:3.35-2ubuntu2.3
Ubuntu 16.04 LTS:
libnss3 2:3.28.4-0ubuntu0.16.04.6
After a standard system update you need to restart any applications that
use NSS, such as Evolution, to make all the necessary changes.
References:
https://usn.ubuntu.com/4060-1
CVE-2019-11719, CVE-2019-11727, CVE-2019-11729
Package Information:
https://launchpad.net/ubuntu/+source/nss/2:3.42-1ubuntu2.1
https://launchpad.net/ubuntu/+source/nss/2:3.35-2ubuntu2.3
https://launchpad.net/ubuntu/+source/nss/2:3.28.4-0ubuntu0.16.04.6
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========================================================================== Ubuntu Security Notice USN-4060-2 July 16, 2019 nss vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 14.04 ESM - Ubuntu 12.04 ESM Summary: Several security issues were fixed in NSS. Software Description: - nss: Network Security Service library Details: USN-4060-1 fixed several vulnerabilities in nss. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. Original advisory details: Henry Corrigan-Gibbs discovered that NSS incorrectly handled importing certain curve25519 private keys. An attacker could use this issue to cause NSS to crash, resulting in a denial of service, or possibly obtain sensitive information. (CVE-2019-11719) Jonas Allmann discovered that NSS incorrectly handled certain p256-ECDH public keys. An attacker could possibly use this issue to cause NSS to crash, resulting in a denial of service. (CVE-2019-11729) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 ESM: libnss3 2:3.28.4-0ubuntu0.14.04.5+esm1 Ubuntu 12.04 ESM: libnss3 2:3.28.4-0ubuntu0.12.04.4 After a standard system update you need to restart any applications that use NSS, such as Evolution, to make all the necessary changes. References: https://usn.ubuntu.com/4060-2 https://usn.ubuntu.com/4060-1 CVE-2019-11719, CVE-2019-11729 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJdLgLHAAoJEEW851uECx9pjIIP/iEdY+2KAHOKQx1ZVnm6kjo5 O2FeVMX8aVwNdHvBAbg25Sj1ZoVCWkVdUI+HD+79J+z6iVO6W5kJW/ApGwAhDA9C XSxIPZyeaJPLjK+1n1IUs5K9UAP9Rw+/IAo/g5Ddi06GelpHnoJ5Z9C96FklWsqM JYmOs/8GY9+5FRcCl81xZPe1KYQxPSJziLReXpiL5CF4sjTT5TM6ZNdMyfYNBYtx tJVCWrBce1AYreq+Bfi96jZ05AFKi4/Za2Ok2J1bx+kp9OY/2YYyJIIm2y/mmvTj SgbaKSw1DIT91dOPwd0nDKGVv4UopJjHsKnwFJVfAUJZW6Zc/i//K1gFmnEnTsMV 6NSJgbLOES97SoZcVvX3343Z2JiMqHClRY/q/MmlqdKG7/wuFaqgB/g57cu5Odbr bf+3Hai1YiRzaHT9fMflL45WS80vhsc9HzEezm63rgUtT1x3SgbuNXpAuTHdYkbo Z8txSEl2Yj1BiWr6NR7QFnq915bA6NYXnacqL/vFKWs4fkjlBN15AYKdsGH6tAQq EpNF9WahNahg1MNhgYmmMF/4gK6KbrGpq7xPxW7/c973MiL7wRjJVDYRhcslsDpH w7NG4g+a2d9m4Gdjw/UMNMwtaFZopp8vM/ED4bMsTP6IbfPpbSBk2dMEc/DoeKaq H+kXQoINF5YGjDke5PCT =1gAi -----END PGP SIGNATURE----- -- ubuntu-security-announce mailing list ubuntu-security-announce@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce
