Denial of service in curl (Alpine package)



Published: 2017-12-07
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-8818
CWE-ID CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		curl (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Denial of service

EUVDB-ID: #VU9460

Risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-8818

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to too little memory is allocated for interfacing to an SSL library. A remote attacker can trigger a memory allocation error in SSL-related code and cause the application to crash.

Mitigation

Install update from vendor's website.

Vulnerable software versions

curl (Alpine package): 7.55.0-r2 - 7.56.1-r1

CPE2.3 External links

http://git.alpinelinux.org/aports/commit/?id=8cd99339489d34b85f1c9f7196bc0a73cda7bde0
http://git.alpinelinux.org/aports/commit/?id=ae95dcd40f4dd84b6c6cc8c7b1f7dccc38bc103e
http://git.alpinelinux.org/aports/commit/?id=be39a8b5346d43f34446441548dc6edd585cb297


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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