SB2015032004 - Multiple vulnerabilities in OpenSSL

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Main Vulnerability Database SB2015032004

SB2015032004 - Multiple vulnerabilities in OpenSSL

Published: March 20, 2015 Updated: December 16, 2022

Security Bulletin ID SB2015032004
Severity
Medium
Patch available
YES
Number of vulnerabilities 5
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 80% Low 20%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 5 secuirty vulnerabilities.


1) Input validation error (CVE-ID: CVE-2015-0207)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in the dtls1_listen function in d1_lib.c. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.


2) NULL pointer dereference (CVE-ID: CVE-2015-0208)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in the ASN.1 signature-verification implementation in the rsa_item_verify function in crypto/rsa/rsa_ameth.c. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.


3) Cryptographic issues (CVE-ID: CVE-2015-0285)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the ssl3_client_hello function in s3_clnt.c does not ensure that the PRNG is seeded before proceeding with a handshak. A remote attacker can gain unauthorized access to sensitive information on the system.


4) NULL pointer dereference (CVE-ID: CVE-2015-0290)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in the multi-block feature in the ssl3_write_bytes function in s3_pkt.c. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.


5) NULL pointer dereference (CVE-ID: CVE-2015-0291)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in the sigalgs implementation in t1_lib.c. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References