SB2013021001 - Slackware Linux update for openssl

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Main Vulnerability Database SB2013021001

SB2013021001 - Slackware Linux update for openssl

Published: February 10, 2013 Updated: April 4, 2025

Security Bulletin ID SB2013021001
Severity
Medium
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 67% Low 33%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Cryptographic issues (CVE-ID: CVE-2012-2686)

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

crypto/evp/e_aes_cbc_hmac_sha1.c in the AES-NI functionality in the TLS 1.1 and 1.2 implementations in OpenSSL 1.0.1 before 1.0.1d allows remote attackers to cause a denial of service (application crash) via crafted CBC data.


2) NULL pointer dereference (CVE-ID: CVE-2013-0166)

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

The vulnerability exists due to a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via an invalid key.


3) Cryptographic issues (CVE-ID: CVE-2013-0169)

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

The TLS protocol 1.1 and 1.2 and the DTLS protocol 1.0 and 1.2, as used in OpenSSL, OpenJDK, PolarSSL, and other products, do not properly consider timing side-channel attacks on a MAC check requirement during the processing of malformed CBC padding, which allows remote attackers to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data for crafted packets, aka the "Lucky Thirteen" issue. Per http://www.openssl.org/news/vulnerabilities.html: Fixed in OpenSSL 1.0.1d (Affected 1.0.1c, 1.0.1b, 1.0.1a, 1.0.1) Fixed in OpenSSL 1.0.0k (Affected 1.0.0j, 1.0.0i, 1.0.0g, 1.0.0f, 1.0.0e, 1.0.0d, 1.0.0c, 1.0.0b, 1.0.0a, 1.0.0) Fixed in OpenSSL 0.9.8y (Affected 0.9.8x, 0.9.8w, 0.9.8v, 0.9.8u, 0.9.8t, 0.9.8s, 0.9.8r, 0.9.8q, 0.9.8p, 0.9.8o, 0.9.8n, 0.9.8m, 0.9.8l, 0.9.8k, 0.9.8j, 0.9.8i, 0.9.8h, 0.9.8g, 0.9.8f, 0.9.8d, 0.9.8c, 0.9.8b, 0.9.8a, 0.9.8) Affected users should upgrade to OpenSSL 1.0.1e, 1.0.0k or 0.9.8y (The fix in 1.0.1d wasn't complete, so please use 1.0.1e or later)


Remediation

Install update from vendor's website.

References