Amazon Linux AMI update for curl

1) Out-of-bounds read

EUVDB-ID: #VU8702

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-2017-1000254

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to out-of-bounds read when parsing a directory name when connecting to an FTP server. A remote attacker can trigger memory corruption, access arbitrary files and cause the application to crash.

Successful exploitation of the vulnerability results in denial of service.

Mitigation

Update the affected packages.

i686:
    curl-debuginfo-7.53.1-11.78.amzn1.i686
    libcurl-7.53.1-11.78.amzn1.i686
    curl-7.53.1-11.78.amzn1.i686
    libcurl-devel-7.53.1-11.78.amzn1.i686

src:
    curl-7.53.1-11.78.amzn1.src

x86_64:
    curl-7.53.1-11.78.amzn1.x86_64
    libcurl-7.53.1-11.78.amzn1.x86_64
    curl-debuginfo-7.53.1-11.78.amzn1.x86_64
    libcurl-devel-7.53.1-11.78.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

External links

http://alas.aws.amazon.com/ALAS-2017-919.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.