The installed version of Thunderbird is earlier than 24.1.1 and is, therefore, potentially affected the following vulnerabilities:

  - An error exists related to handling input greater than     half the maximum size of the 'PRUint32' value.
    (CVE-2013-1741)

  - An error exists in the 'Null_Cipher' function in the     file 'ssl/ssl3con.c' related to handling invalid     handshake packets that could allow arbitrary code     execution. (CVE-2013-5605)

  - An error exists in the 'CERT_VerifyCert' function in     the file 'lib/certhigh/certvfy.c' that could allow     invalid certificates to be treated as valid.
    (CVE-2013-5606)

  - An integer truncation error exists in the function     'PL_ArenaAllocate' in the Netscape Portable Runtime     (NSPR) library. (CVE-2013-5607)

Mozilla NSPR and NSS were updated to fix various security bugs that could be used to crash the browser or potentially execute code.

Mozilla NSPR 4.10.2 has the following bug fixes :

  - Bug 770534: Possible pointer overflow in     PL_ArenaAllocate(). Fixed by Pascal Cuoq and Kamil     Dudka.

  - Bug 888546: ptio.c:PR_ImportUDPSocket doesn't work.
    Fixed by Miloslav Trmac.

  - Bug 915522: VS2013 support for NSPR. Fixed by Makoto     Kato.

  - Bug 927687: Avoid unsigned integer wrapping in     PL_ArenaAllocate. (CVE-2013-5607) Mozilla NSS 3.15.3 is     a patch release for NSS 3.15 and includes the following     bug fixes :

  - Bug 925100: Ensure a size is <= half of the maximum     PRUint32 value. (CVE-2013-1741)

  - Bug 934016: Handle invalid handshake packets.
    (CVE-2013-5605)

  - Bug 910438: Return the correct result in CERT_VerifyCert     on failure, if a verifyLog isn't used. (CVE-2013-5606)

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2013-1791 advisory.

    - Resolves: rhbz#1032466 - CVE-2013-5605 CVE-2013-5606 CVE-2013-1741 nss: various flaws [rhel-5.10]
    - Resolves: rhbz#1032466 - CVE-2013-5605 CVE-2013-5606 CVE-2013-1741 nss: various flaws [rhel-5.10]
    - Resolves: rhbz#1032466 - CVE-2013-5605 CVE-2013-5606 CVE-2013-1741 nss: various flaws [rhel-5.10]

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.

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.

Multiple security issues was identified and fixed in mozilla NSPR and NSS :

Mozilla Network Security Services (NSS) before 3.15.2 does not ensure that data structures are initialized before read operations, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors that trigger a decryption failure (CVE-2013-1739).

Integer overflow in Mozilla Network Security Services (NSS) 3.15 before 3.15.3 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a large size value (CVE-2013-1741).

The RC4 algorithm, as used in the TLS protocol and SSL protocol, has many single-byte biases, which makes it easier for remote attackers to conduct plaintext-recovery attacks via statistical analysis of ciphertext in a large number of sessions that use the same plaintext (CVE-2013-2566).

Mozilla Network Security Services (NSS) 3.14 before 3.14.5 and 3.15 before 3.15.3 allows remote attackers to cause a denial of service or possibly have unspecified other impact via invalid handshake packets (CVE-2013-5605).

The CERT_VerifyCert function in lib/certhigh/certvfy.c in Mozilla Network Security Services (NSS) 3.15 before 3.15.3 provides an unexpected return value for an incompatible key-usage certificate when the CERTVerifyLog argument is valid, which might allow remote attackers to bypass intended access restrictions via a crafted certificate (CVE-2013-5606).

Integer overflow in the PL_ArenaAllocate function in Mozilla Netscape Portable Runtime (NSPR) before 4.10.2, as used in Firefox before 25.0.1, Firefox ESR 17.x before 17.0.11 and 24.x before 24.1.1, and SeaMonkey before 2.22.1, allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted X.509 certificate, a related issue to CVE-2013-1741 (CVE-2013-5607).

The NSPR packages has been upgraded to the 4.10.2 version and the NSS packages has been upgraded to the 3.15.3 version which is unaffected by these security flaws.

Additionally the rootcerts packages has been upgraded with the latest certdata.txt file as of 2013/11/11 from mozilla.

ID	Name	Product	Family	Published	Updated	Severity
71045	Mozilla Thunderbird < 24.1.1 NSS and NSPR Multiple Vulnerabilities	Nessus	Windows	11/22/2013	11/27/2019	high
71172	SuSE 11.2 / 11.3 Security Update : mozilla-nspr, mozilla-nss (SAT Patch Numbers 8572 / 8573)	Nessus	SuSE Local Security Checks	12/3/2013	1/19/2021	high
71241	Oracle Linux 5 : nss / and / nspr (ELSA-2013-1791)	Nessus	Oracle Linux Local Security Checks	12/6/2013	4/29/2025	critical
71243	RHEL 5 : nss and nspr (RHSA-2013:1791)	Nessus	Red Hat Local Security Checks	12/6/2013	1/14/2021	high
70998	Mandriva Linux Security Advisory : nss (MDVSA-2013:270)	Nessus	Mandriva Local Security Checks	11/21/2013	1/6/2021	high

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