Multiple security issues were discovered in NSS. If a user were tricked into connecting to a malicious server, an attacker could possibly exploit these to cause a denial of service via application crash, potentially execute arbitrary code, or lead to information disclosure.

This update also adds TLS v1.2 support to Ubuntu 10.04 LTS, Ubuntu 12.04 LTS, Ubuntu 12.10, and Ubuntu 13.04.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Updated nss and nspr packages that fix multiple security issues, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

Network Security Services (NSS) is a set of libraries designed to support the cross-platform development of security-enabled client and server applications. Netscape Portable Runtime (NSPR) provides platform independence for non-GUI operating system facilities.

A flaw was found in the way NSS handled invalid handshake packets. A remote attacker could use this flaw to cause a TLS/SSL client using NSS to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2013-5605)

It was found that the fix for CVE-2013-1620 released via RHSA-2013:1135 introduced a regression causing NSS to read uninitialized data when a decryption failure occurred. A remote attacker could use this flaw to cause a TLS/SSL server using NSS to crash. (CVE-2013-1739)

An integer overflow flaw was discovered in both NSS and NSPR's implementation of certification parsing on 64-bit systems. A remote attacker could use these flaws to cause an application using NSS or NSPR to crash. (CVE-2013-1741, CVE-2013-5607)

It was discovered that NSS did not reject certificates with incompatible key usage constraints when validating them while the verifyLog feature was enabled. An application using the NSS certificate validation API could accept an invalid certificate.
(CVE-2013-5606)

Red Hat would like to thank the Mozilla project for reporting CVE-2013-1741, CVE-2013-5606, and CVE-2013-5607. Upstream acknowledges Tavis Ormandy as the original reporter of CVE-2013-1741, Camilo Viecco as the original reporter of CVE-2013-5606, and Pascal Cuoq, Kamil Dudka, and Wan-Teh Chang as the original reporters of CVE-2013-5607.

In addition, the nss package has been upgraded to upstream version 3.15.3, and the nspr package has been upgraded to upstream version 4.10.2. These updates provide a number of bug fixes and enhancements over the previous versions. (BZ#1033478, BZ#1020520)

This update also fixes the following bug :

* The RHBA-2013:1318 update introduced a regression that prevented the use of certificates that have an MD5 signature. This update fixes this regression and certificates that have an MD5 signature are once again supported. To prevent the use of certificates that have an MD5 signature, set the 'NSS_HASH_ALG_SUPPORT' environment variable to '-MD5'. (BZ#1033499)

Users of NSS and NSPR are advised to upgrade to these updated packages, which fix these issues and add these enhancements. After installing this update, applications using NSS or NSPR must be restarted for this update to take effect.

The remote Oracle Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2013-1829 advisory.

    - Resolves: rhbz#1032485 - CVE-2013-5607 (MFSA 2013-103) Avoid unsigned integer wrapping in     PL_ArenaAllocate (MFSA 2013-103)

    nss
    - Resolves: Bug 1032470 - CVE-2013-5605 CVE-2013-5606 CVE-2013-1741

    nss-util

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

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

A flaw was found in the way NSS handled invalid handshake packets. A remote attacker could use this flaw to cause a TLS/SSL client using NSS to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2013-5605)

It was found that the fix for CVE-2013-1620 introduced a regression causing NSS to read uninitialized data when a decryption failure occurred. A remote attacker could use this flaw to cause a TLS/SSL server using NSS to crash. (CVE-2013-1739)

An integer overflow flaw was discovered in both NSS and NSPR's implementation of certification parsing on 64-bit systems. A remote attacker could use these flaws to cause an application using NSS or NSPR to crash. (CVE-2013-1741 , CVE-2013-5607)

It was discovered that NSS did not reject certificates with incompatible key usage constraints when validating them while the verifyLog feature was enabled. An application using the NSS certificate validation API could accept an invalid certificate.
(CVE-2013-5606)

The remote host is affected by the vulnerability described in GLSA-201504-01 (Mozilla Products: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in Firefox, Thunderbird,       and SeaMonkey. Please review the CVE identifiers referenced below for       details.
  Impact :

    A remote attacker could entice a user to view a specially crafted web       page or email, possibly resulting in execution of arbitrary code or a       Denial of Service condition. Furthermore, a remote attacker may be able       to perform Man-in-the-Middle attacks, obtain sensitive information, spoof       the address bar, conduct clickjacking attacks, bypass security       restrictions and protection mechanisms,  or have other unspecified       impact.
  Workaround :

    There are no known workarounds at this time.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
70962	Ubuntu 10.04 LTS / 12.04 LTS / 12.10 / 13.04 / 13.10 : nss vulnerabilities (USN-2030-1)	Nessus	Ubuntu Local Security Checks	2013/11/19	2019/9/19	high
71237	CentOS 5 : nspr / nss (CESA-2013:1791)	Nessus	CentOS Local Security Checks	2013/12/6	2021/1/4	high
71388	Oracle Linux 6 : nss, / nspr, / and / nss-util (ELSA-2013-1829)	Nessus	Oracle Linux Local Security Checks	2013/12/13	2024/10/22	critical
71578	Amazon Linux AMI : nspr (ALAS-2013-266)	Nessus	Amazon Linux Local Security Checks	2013/12/23	2018/4/18	high
82632	GLSA-201504-01 : Mozilla Products: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	2015/4/8	2021/1/11	critical

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