Amazon Linux AMI update for postgresql94, postgresql93, postgresql92

Published: 2016-03-10

Risk	Medium
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2016-0773
CWE-ID	CWE-119
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Amazon Linux AMI Operating systems & Components / Operating system
Vendor	Amazon Web Services

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU32339

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2016-0773

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

PostgreSQL before 9.1.20, 9.2.x before 9.2.15, 9.3.x before 9.3.11, 9.4.x before 9.4.6, and 9.5.x before 9.5.1 allows remote attackers to cause a denial of service (infinite loop or buffer overflow and crash) via a large Unicode character range in a regular expression.

Mitigation

Update the affected packages:

i686:
    postgresql93-contrib-9.3.11-1.61.amzn1.i686
    postgresql93-debuginfo-9.3.11-1.61.amzn1.i686
    postgresql93-server-9.3.11-1.61.amzn1.i686
    postgresql93-9.3.11-1.61.amzn1.i686
    postgresql93-pltcl-9.3.11-1.61.amzn1.i686
    postgresql93-docs-9.3.11-1.61.amzn1.i686
    postgresql93-plperl-9.3.11-1.61.amzn1.i686
    postgresql93-devel-9.3.11-1.61.amzn1.i686
    postgresql93-test-9.3.11-1.61.amzn1.i686
    postgresql93-libs-9.3.11-1.61.amzn1.i686
    postgresql93-plpython27-9.3.11-1.61.amzn1.i686
    postgresql93-plpython26-9.3.11-1.61.amzn1.i686
    postgresql92-plpython27-9.2.15-1.57.amzn1.i686
    postgresql92-server-9.2.15-1.57.amzn1.i686
    postgresql92-plpython26-9.2.15-1.57.amzn1.i686
    postgresql92-pltcl-9.2.15-1.57.amzn1.i686
    postgresql92-docs-9.2.15-1.57.amzn1.i686
    postgresql92-contrib-9.2.15-1.57.amzn1.i686
    postgresql92-test-9.2.15-1.57.amzn1.i686
    postgresql92-9.2.15-1.57.amzn1.i686
    postgresql92-devel-9.2.15-1.57.amzn1.i686
    postgresql92-plperl-9.2.15-1.57.amzn1.i686
    postgresql92-libs-9.2.15-1.57.amzn1.i686
    postgresql92-server-compat-9.2.15-1.57.amzn1.i686
    postgresql92-debuginfo-9.2.15-1.57.amzn1.i686
    postgresql94-server-9.4.6-1.66.amzn1.i686
    postgresql94-plperl-9.4.6-1.66.amzn1.i686
    postgresql94-devel-9.4.6-1.66.amzn1.i686
    postgresql94-libs-9.4.6-1.66.amzn1.i686
    postgresql94-plpython26-9.4.6-1.66.amzn1.i686
    postgresql94-plpython27-9.4.6-1.66.amzn1.i686
    postgresql94-contrib-9.4.6-1.66.amzn1.i686
    postgresql94-9.4.6-1.66.amzn1.i686
    postgresql94-test-9.4.6-1.66.amzn1.i686
    postgresql94-docs-9.4.6-1.66.amzn1.i686
    postgresql94-debuginfo-9.4.6-1.66.amzn1.i686

src:
    postgresql93-9.3.11-1.61.amzn1.src
    postgresql92-9.2.15-1.57.amzn1.src
    postgresql94-9.4.6-1.66.amzn1.src

x86_64:
    postgresql93-test-9.3.11-1.61.amzn1.x86_64
    postgresql93-9.3.11-1.61.amzn1.x86_64
    postgresql93-docs-9.3.11-1.61.amzn1.x86_64
    postgresql93-devel-9.3.11-1.61.amzn1.x86_64
    postgresql93-plpython26-9.3.11-1.61.amzn1.x86_64
    postgresql93-pltcl-9.3.11-1.61.amzn1.x86_64
    postgresql93-plperl-9.3.11-1.61.amzn1.x86_64
    postgresql93-contrib-9.3.11-1.61.amzn1.x86_64
    postgresql93-server-9.3.11-1.61.amzn1.x86_64
    postgresql93-debuginfo-9.3.11-1.61.amzn1.x86_64
    postgresql93-libs-9.3.11-1.61.amzn1.x86_64
    postgresql93-plpython27-9.3.11-1.61.amzn1.x86_64
    postgresql92-server-compat-9.2.15-1.57.amzn1.x86_64
    postgresql92-contrib-9.2.15-1.57.amzn1.x86_64
    postgresql92-devel-9.2.15-1.57.amzn1.x86_64
    postgresql92-server-9.2.15-1.57.amzn1.x86_64
    postgresql92-9.2.15-1.57.amzn1.x86_64
    postgresql92-plperl-9.2.15-1.57.amzn1.x86_64
    postgresql92-pltcl-9.2.15-1.57.amzn1.x86_64
    postgresql92-libs-9.2.15-1.57.amzn1.x86_64
    postgresql92-plpython26-9.2.15-1.57.amzn1.x86_64
    postgresql92-debuginfo-9.2.15-1.57.amzn1.x86_64
    postgresql92-test-9.2.15-1.57.amzn1.x86_64
    postgresql92-docs-9.2.15-1.57.amzn1.x86_64
    postgresql92-plpython27-9.2.15-1.57.amzn1.x86_64
    postgresql94-libs-9.4.6-1.66.amzn1.x86_64
    postgresql94-plpython27-9.4.6-1.66.amzn1.x86_64
    postgresql94-server-9.4.6-1.66.amzn1.x86_64
    postgresql94-test-9.4.6-1.66.amzn1.x86_64
    postgresql94-plpython26-9.4.6-1.66.amzn1.x86_64
    postgresql94-plperl-9.4.6-1.66.amzn1.x86_64
    postgresql94-contrib-9.4.6-1.66.amzn1.x86_64
    postgresql94-debuginfo-9.4.6-1.66.amzn1.x86_64
    postgresql94-devel-9.4.6-1.66.amzn1.x86_64
    postgresql94-docs-9.4.6-1.66.amzn1.x86_64
    postgresql94-9.4.6-1.66.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

CPE2.3

cpe:2.3:o:amazon_web_services:amazon_linux_ami:*:*:*:*:*:*:*:*

External links

https://alas.aws.amazon.com/ALAS-2016-662.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.