Amazon Linux AMI update for memcached



Risk High
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2016-8705
CVE-2016-8704
CVE-2016-8706
CWE-ID CWE-122
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 information about 3 vulnerabilities.

1) Heap-based buffer overflow

EUVDB-ID: #VU4139

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2016-8705

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists in the process_bin_update() function due to integer overflow. A remote attacker can send specially crafted Memcached binary protocol commands, trigger heap-based buffer overflow and execute arbitrary code.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation

Update the affected packages.

i686:
    memcached-1.4.15-9.13.amzn1.i686
    memcached-debuginfo-1.4.15-9.13.amzn1.i686
    memcached-devel-1.4.15-9.13.amzn1.i686

src:
    memcached-1.4.15-9.13.amzn1.src

x86_64:
    memcached-1.4.15-9.13.amzn1.x86_64
    memcached-devel-1.4.15-9.13.amzn1.x86_64
    memcached-debuginfo-1.4.15-9.13.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

CPE2.3 External links

https://alas.aws.amazon.com/ALAS-2016-761.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.

2) Heap-based buffer overflow

EUVDB-ID: #VU4138

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2016-8704

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists in the process_bin_append_prepend() function due to integer overflow. A remote attacker can send specially crafted Memcached binary protocol commands, trigger heap-based buffer overflow and execute arbitrary code.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation

Update the affected packages.

i686:
    memcached-1.4.15-9.13.amzn1.i686
    memcached-debuginfo-1.4.15-9.13.amzn1.i686
    memcached-devel-1.4.15-9.13.amzn1.i686

src:
    memcached-1.4.15-9.13.amzn1.src

x86_64:
    memcached-1.4.15-9.13.amzn1.x86_64
    memcached-devel-1.4.15-9.13.amzn1.x86_64
    memcached-debuginfo-1.4.15-9.13.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

CPE2.3 External links

https://alas.aws.amazon.com/ALAS-2016-761.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.

3) Heap-based buffer overflow

EUVDB-ID: #VU4140

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2016-8706

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists in the process_bin_sasl_auth() function due to integer overflow. A remote attacker can send specially crafted Memcached binary protocol commands, trigger heap-based buffer overflow and execute arbitrary code.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation

Update the affected packages.

i686:
    memcached-1.4.15-9.13.amzn1.i686
    memcached-debuginfo-1.4.15-9.13.amzn1.i686
    memcached-devel-1.4.15-9.13.amzn1.i686

src:
    memcached-1.4.15-9.13.amzn1.src

x86_64:
    memcached-1.4.15-9.13.amzn1.x86_64
    memcached-devel-1.4.15-9.13.amzn1.x86_64
    memcached-debuginfo-1.4.15-9.13.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

CPE2.3 External links

https://alas.aws.amazon.com/ALAS-2016-761.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.



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