Amazon Linux AMI update for rsyslog

1) Buffer overflow

EUVDB-ID: #VU32475

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2014-3634

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

rsyslog before 7.6.6 and 8.x before 8.4.1 and sysklogd 1.5 and earlier allows remote attackers to cause a denial of service (crash), possibly execute arbitrary code, or have other unspecified impact via a crafted priority (PRI) value that triggers an out-of-bounds array access.

Mitigation

Update the affected packages:

i686:
    rsyslog-mysql-5.8.10-9.26.amzn1.i686
    rsyslog-debuginfo-5.8.10-9.26.amzn1.i686
    rsyslog-pgsql-5.8.10-9.26.amzn1.i686
    rsyslog-gnutls-5.8.10-9.26.amzn1.i686
    rsyslog-gssapi-5.8.10-9.26.amzn1.i686
    rsyslog-5.8.10-9.26.amzn1.i686
    rsyslog-snmp-5.8.10-9.26.amzn1.i686

src:
    rsyslog-5.8.10-9.26.amzn1.src

x86_64:
    rsyslog-5.8.10-9.26.amzn1.x86_64
    rsyslog-snmp-5.8.10-9.26.amzn1.x86_64
    rsyslog-gssapi-5.8.10-9.26.amzn1.x86_64
    rsyslog-pgsql-5.8.10-9.26.amzn1.x86_64
    rsyslog-mysql-5.8.10-9.26.amzn1.x86_64
    rsyslog-debuginfo-5.8.10-9.26.amzn1.x86_64
    rsyslog-gnutls-5.8.10-9.26.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-2014-445.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.