Ubuntu 10.04 LTS / 12.04 LTS / 14.04 LTS / 14.10 : openssl vulnerabilities (USN-2537-1)

High Nessus Plugin ID 81971

Synopsis

The remote Ubuntu host is missing one or more security-related patches.

Description

It was discovered that OpenSSL incorrectly handled malformed EC private key files. A remote attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service, or execute arbitrary code. (CVE-2015-0209)

Stephen Henson discovered that OpenSSL incorrectly handled comparing ASN.1 boolean types. A remote attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service.
(CVE-2015-0286)

Emilia Kasper discovered that OpenSSL incorrectly handled ASN.1 structure reuse. A remote attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service, or execute arbitrary code. (CVE-2015-0287)

Brian Carpenter discovered that OpenSSL incorrectly handled invalid certificate keys. A remote attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service.
(CVE-2015-0288)

Michal Zalewski discovered that OpenSSL incorrectly handled missing outer ContentInfo when parsing PKCS#7 structures. A remote attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service, or execute arbitrary code. (CVE-2015-0289)

Robert Dugal and David Ramos discovered that OpenSSL incorrectly handled decoding Base64 encoded data. A remote attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service, or execute arbitrary code. (CVE-2015-0292)

Sean Burford and Emilia Kasper discovered that OpenSSL incorrectly handled specially crafted SSLv2 CLIENT-MASTER-KEY messages. A remote attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service. (CVE-2015-0293).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected libssl0.9.8 and / or libssl1.0.0 packages.

See Also

https://usn.ubuntu.com/2537-1/

Plugin Details

Severity: High

ID: 81971

File Name: ubuntu_USN-2537-1.nasl

Version: 1.17

Type: local

Agent: unix

Published: 2015/03/20

Updated: 2018/12/01

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libssl0.9.8, p-cpe:/a:canonical:ubuntu_linux:libssl1.0.0, cpe:/o:canonical:ubuntu_linux:10.04:-:lts, cpe:/o:canonical:ubuntu_linux:12.04:-:lts, cpe:/o:canonical:ubuntu_linux:14.04, cpe:/o:canonical:ubuntu_linux:14.10

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2015/03/19

Reference Information

CVE: CVE-2015-0209, CVE-2015-0286, CVE-2015-0287, CVE-2015-0288, CVE-2015-0289, CVE-2015-0292, CVE-2015-0293

BID: 73225, 73227, 73228, 73231, 73232, 73237, 73239

USN: 2537-1