K31372672 : Mozilla NSS vulnerabilities CVE-2015-7181, CVE-2015-7182, and CVE-2015-7183

Security Advisory Description

• CVE-2015-7181

The sec_asn1d_parse_leaf function in Mozilla Network Security Services (NSS) before 3.19.2.1 and 3.20.x before 3.20.1, as used in Firefox before 42.0 and Firefox ESR 38.x before 38.4 and other products, improperly restricts access to an unspecified data structure, which allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via crafted OCTET STRING data, related to a “use-after-poison” issue.

• CVE-2015-7182

Heap-based buffer overflow in the ASN.1 decoder in Mozilla Network Security Services (NSS) before 3.19.2.1 and 3.20.x before 3.20.1, as used in Firefox before 42.0 and Firefox ESR 38.x before 38.4 and other products, allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via crafted OCTET STRING data.

• CVE-2015-7183

Integer overflow in the PL_ARENA_ALLOCATE implementation in Netscape Portable Runtime (NSPR) in Mozilla Network Security Services (NSS) before 3.19.2.1 and 3.20.x before 3.20.1, as used in Firefox before 42.0 and Firefox ESR 38.x before 38.4 and other products, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via unspecified vectors.
Impact
When these vulnerabilities are exploited, an attacker may be able to cause a denial-of-service (DoS) attack or execute arbitrary code. While this vulnerable code exists in BIG-IP, BIG-IQ, and Enterprise Manager products, the use case is limited for affected NSS libraries. There are no known remote access vectors, and local exposure is limited. To trigger an attack using a custom binary, an attacker would need to have directly logged in to the BIG-IP, BIG-IQ, or Enterprise Manager system using a shell.