Amazon Linux AMI update for vim



Published: 2017-03-29
Risk High
Patch available YES
Number of vulnerabilities 5
CVE-ID CVE-2017-5953
CVE-2017-6349
CVE-2017-6350
CWE-ID CWE-190
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Amazon Linux AMI
Operating systems & Components / Operating system

Vendor Amazon Web Services

Security Bulletin

This security bulletin contains information about 5 vulnerabilities.

1) Integer overflow

EUVDB-ID: #VU33443

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-5953

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

vim before patch 8.0.0322 does not properly validate values for tree length when handling a spell file, which may result in an integer overflow at a memory allocation site and a resultant buffer overflow.

Mitigation

Update the affected packages:

i686:
    vim-debuginfo-8.0.0503-1.45.amzn1.i686
    vim-enhanced-8.0.0503-1.45.amzn1.i686
    vim-minimal-8.0.0503-1.45.amzn1.i686
    vim-filesystem-8.0.0503-1.45.amzn1.i686
    vim-common-8.0.0503-1.45.amzn1.i686

src:
    vim-8.0.0503-1.45.amzn1.src

x86_64:
    vim-enhanced-8.0.0503-1.45.amzn1.x86_64
    vim-filesystem-8.0.0503-1.45.amzn1.x86_64
    vim-debuginfo-8.0.0503-1.45.amzn1.x86_64
    vim-common-8.0.0503-1.45.amzn1.x86_64
    vim-minimal-8.0.0503-1.45.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

External links

http://alas.aws.amazon.com/ALAS-2017-809.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) Integer overflow

EUVDB-ID: #VU33442

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-5953

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

vim before patch 8.0.0322 does not properly validate values for tree length when handling a spell file, which may result in an integer overflow at a memory allocation site and a resultant buffer overflow.

Mitigation

Update the affected packages:

i686:
    vim-debuginfo-8.0.0503-1.45.amzn1.i686
    vim-enhanced-8.0.0503-1.45.amzn1.i686
    vim-minimal-8.0.0503-1.45.amzn1.i686
    vim-filesystem-8.0.0503-1.45.amzn1.i686
    vim-common-8.0.0503-1.45.amzn1.i686

src:
    vim-8.0.0503-1.45.amzn1.src

x86_64:
    vim-enhanced-8.0.0503-1.45.amzn1.x86_64
    vim-filesystem-8.0.0503-1.45.amzn1.x86_64
    vim-debuginfo-8.0.0503-1.45.amzn1.x86_64
    vim-common-8.0.0503-1.45.amzn1.x86_64
    vim-minimal-8.0.0503-1.45.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

External links

http://alas.aws.amazon.com/ALAS-2017-809.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) Integer overflow

EUVDB-ID: #VU33447

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-6349

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

An integer overflow at a u_read_undo memory allocation site would occur for vim before patch 8.0.0377, if it does not properly validate values for tree length when reading a corrupted undo file, which may lead to resultant buffer overflows.

Mitigation

Update the affected packages:

i686:
    vim-debuginfo-8.0.0503-1.45.amzn1.i686
    vim-enhanced-8.0.0503-1.45.amzn1.i686
    vim-minimal-8.0.0503-1.45.amzn1.i686
    vim-filesystem-8.0.0503-1.45.amzn1.i686
    vim-common-8.0.0503-1.45.amzn1.i686

src:
    vim-8.0.0503-1.45.amzn1.src

x86_64:
    vim-enhanced-8.0.0503-1.45.amzn1.x86_64
    vim-filesystem-8.0.0503-1.45.amzn1.x86_64
    vim-debuginfo-8.0.0503-1.45.amzn1.x86_64
    vim-common-8.0.0503-1.45.amzn1.x86_64
    vim-minimal-8.0.0503-1.45.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

External links

http://alas.aws.amazon.com/ALAS-2017-809.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.

4) Integer overflow

EUVDB-ID: #VU33446

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-6349

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

An integer overflow at a u_read_undo memory allocation site would occur for vim before patch 8.0.0377, if it does not properly validate values for tree length when reading a corrupted undo file, which may lead to resultant buffer overflows.

Mitigation

Update the affected packages:

i686:
    vim-debuginfo-8.0.0503-1.45.amzn1.i686
    vim-enhanced-8.0.0503-1.45.amzn1.i686
    vim-minimal-8.0.0503-1.45.amzn1.i686
    vim-filesystem-8.0.0503-1.45.amzn1.i686
    vim-common-8.0.0503-1.45.amzn1.i686

src:
    vim-8.0.0503-1.45.amzn1.src

x86_64:
    vim-enhanced-8.0.0503-1.45.amzn1.x86_64
    vim-filesystem-8.0.0503-1.45.amzn1.x86_64
    vim-debuginfo-8.0.0503-1.45.amzn1.x86_64
    vim-common-8.0.0503-1.45.amzn1.x86_64
    vim-minimal-8.0.0503-1.45.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

External links

http://alas.aws.amazon.com/ALAS-2017-809.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.

5) Integer overflow

EUVDB-ID: #VU33141

Risk: Medium

CVSSv3.1: 6.2 [CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-6350

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

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

The vulnerability exists due to integer overflow when reading undo files. A remote attacker can trick the victim to open a specially crafted undo file, trigger integer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected packages:

i686:
    vim-debuginfo-8.0.0503-1.45.amzn1.i686
    vim-enhanced-8.0.0503-1.45.amzn1.i686
    vim-minimal-8.0.0503-1.45.amzn1.i686
    vim-filesystem-8.0.0503-1.45.amzn1.i686
    vim-common-8.0.0503-1.45.amzn1.i686

src:
    vim-8.0.0503-1.45.amzn1.src

x86_64:
    vim-enhanced-8.0.0503-1.45.amzn1.x86_64
    vim-filesystem-8.0.0503-1.45.amzn1.x86_64
    vim-debuginfo-8.0.0503-1.45.amzn1.x86_64
    vim-common-8.0.0503-1.45.amzn1.x86_64
    vim-minimal-8.0.0503-1.45.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

External links

http://alas.aws.amazon.com/ALAS-2017-809.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user 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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