The X509_cmp_time function in crypto/x509/x509_vfy.c in OpenSSL before 0.9.8zg, 1.0.0 before 1.0.0s, 1.0.1 before 1.0.1n, and 1.0.2 before 1.0.2b allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted length field in ASN1_TIME data, as demonstrated by an attack against a server that supports client authentication with a custom verification callback.
Monthly Archives: June 2015
CVE-2015-1790
The PKCS7_dataDecodefunction in crypto/pkcs7/pk7_doit.c in OpenSSL before 0.9.8zg, 1.0.0 before 1.0.0s, 1.0.1 before 1.0.1n, and 1.0.2 before 1.0.2b allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a PKCS#7 blob that uses ASN.1 encoding and lacks inner EncryptedContent data.
CVE-2015-1791
Race condition in the ssl3_get_new_session_ticket function in ssl/s3_clnt.c in OpenSSL before 0.9.8zg, 1.0.0 before 1.0.0s, 1.0.1 before 1.0.1n, and 1.0.2 before 1.0.2b, when used for a multi-threaded client, allows remote attackers to cause a denial of service (double free and application crash) or possibly have unspecified other impact by providing a NewSessionTicket during an attempt to reuse a ticket that had been obtained earlier.
CVE-2015-1792
The do_free_upto function in crypto/cms/cms_smime.c in OpenSSL before 0.9.8zg, 1.0.0 before 1.0.0s, 1.0.1 before 1.0.1n, and 1.0.2 before 1.0.2b allows remote attackers to cause a denial of service (infinite loop) via vectors that trigger a NULL value of a BIO data structure, as demonstrated by an unrecognized X.660 OID for a hash function.
OpenSSL Patches Multiple Vulnerabilities
Original release date: June 12, 2015
OpenSSL has released updates addressing multiple vulnerabilities, one of which allows a remote attacker to downgrade vulnerable TLS connections to 512-bit export-grade cryptography—an attack known as Logjam (CVE-2015-4000). Exploitation of some of these vulnerabilities could allow the attacker to read and modify data passed over the connection.
Updates available include:
- OpenSSL 1.0.2b for 1.0.2 users
- OpenSSL 1.0.1n for 1.0.1 users
- OpenSSL 1.0.0s for 1.0.0d (and below) users
- OpenSSL 0.9.8zg for 0.9.8r (and below) users
Users and administrators are encouraged to review the OpenSSL Security Advisory and apply the necessary updates.
This product is provided subject to this Notification and this Privacy & Use policy.
iOS bug leaves iCloud passwords vulnerable
A security researcher has highlighted an iOS bug that makes it easier for hackers to to steal iCloud passwords.
The post iOS bug leaves iCloud passwords vulnerable appeared first on We Live Security.
CVE-2015-0768
The Device Work Center (DWC) component in Cisco Prime Network Control System (NCS) 2.1(0.0.85), 2.2(0.0.58), and 2.2(0.0.69) does not properly implement AAA roles, which allows remote authenticated users to bypass intended access restrictions and execute commands via a login session, aka Bug ID CSCur27371.
CVE-2015-0769
Cisco IOS XR 4.0.1 through 4.2.0 for CRS-3 Carrier Routing System allows remote attackers to cause a denial of service (NPU ASIC scan and line-card reload) via crafted IPv6 extension headers, aka Bug ID CSCtx03546.
CVE-2015-0772
Cisco TelePresence Video Communication Server (VCS) X8.5RC4 allows remote attackers to cause a denial of service (CPU consumption or device outage) via a crafted SDP parameter-negotiation request in an SDP session during a SIP connection, aka Bug ID CSCut42422.
CVE-2015-0775
The banner (aka MOTD) implementation in Cisco NX-OS 4.1(2)E1(1f) on Nexus 4000 devices, 5.2(1)SV3(2.1) on Nexus 1000V devices, 6.0(2)N2(2) on Nexus 5000 devices, 6.2(11) on MDS 9000 devices, 6.2(12) on Nexus 7000 devices, 7.0(3) on Nexus 9000 devices, and 7.2(0)ZN(99.67) on Nexus 3000 devices allows remote attackers to cause a denial of service (login process reset) via an unspecified terminal-session request during TELNET session setup, aka Bug IDs CSCuo10554, CSCuu75466, CSCuu75471, CSCuu75484, CSCuu75498, CSCuu77170, and CSCuu77182.