Amazon Linux AMI update for curl



Published: 2018-02-22
Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2018-1000007
CVE-2018-1000005
CWE-ID CWE-200
CWE-125
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 2 vulnerabilities.

1) Information disclosure

EUVDB-ID: #VU10224

Risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-1000007

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.

The weakness exists due to insufficient validation of user-supplied input. A remote attacker can send custom headers in an HTTP request and an HTTP 30X redirect response code, cause the application to send the custom headers to the server specified in the 'Location:' response header and  obtain potentially sensitive authentication information from applications that use custom 'Authorization:' headers.

Mitigation

Update the affected packages.

i686:
    libcurl-devel-7.53.1-14.81.amzn1.i686
    libcurl-7.53.1-14.81.amzn1.i686
    curl-debuginfo-7.53.1-14.81.amzn1.i686
    curl-7.53.1-14.81.amzn1.i686

src:
    curl-7.53.1-14.81.amzn1.src

x86_64:
    curl-7.53.1-14.81.amzn1.x86_64
    curl-debuginfo-7.53.1-14.81.amzn1.x86_64
    libcurl-7.53.1-14.81.amzn1.x86_64
    libcurl-devel-7.53.1-14.81.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

External links

http://alas.aws.amazon.com/ALAS-2018-951.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) Out-of-bounds read

EUVDB-ID: #VU10223

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-1000005

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to obtain potentially sensitive information or cause DoS condition on the target system.

The weakness exists due to insufficient validation of user-supplied input. A remote attacker can send a specially crafted HTTP/2 trailer to trigger an out-of-bounds memory read error and cause the application to crash or obtain potentially sensitive information from services that echo back or otherwise use the trailers.

Mitigation

Update the affected packages.

i686:
    libcurl-devel-7.53.1-14.81.amzn1.i686
    libcurl-7.53.1-14.81.amzn1.i686
    curl-debuginfo-7.53.1-14.81.amzn1.i686
    curl-7.53.1-14.81.amzn1.i686

src:
    curl-7.53.1-14.81.amzn1.src

x86_64:
    curl-7.53.1-14.81.amzn1.x86_64
    curl-debuginfo-7.53.1-14.81.amzn1.x86_64
    libcurl-7.53.1-14.81.amzn1.x86_64
    libcurl-devel-7.53.1-14.81.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

External links

http://alas.aws.amazon.com/ALAS-2018-951.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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