SB2015120409 - Fedora 22 update for openssl
Published: December 4, 2015 Updated: April 24, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Race condition (CVE-ID: CVE-2015-3196)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a race condition in the ssl/s3_clnt.c in OpenSSL when used for a multi-threaded client. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system via a crafted ServerKeyExchange message.
2) Information disclosure (CVE-ID: CVE-2015-3195)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists in the ASN1_TFLG_COMBINE implementation in crypto/asn1/tasn_dec.c in OpenSSL. A remote attacker can gain unauthorized access to sensitive information from process memory by triggering a decoding failure in a PKCS#7 or CMS application.
3) NULL pointer dereference (CVE-ID: CVE-2015-3194)
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 crypto/rsa/rsa_ameth.c in OpenSSL. A remote attacker can trigger denial of service conditions via an RSA PSS ASN.1 signature that lacks a mask generation function parameter.
Remediation
Install update from vendor's website.