Heap-based buffer overflow in curl (Alpine package)



Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-1000120
CWE-ID CWE-122
Exploitation vector Network
Public exploit N/A
Vulnerable software
 curl (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Heap-based buffer overflow

EUVDB-ID: #VU11111

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-2018-1000120

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 due to heap-based buffer overflow. A remote attacker that can control the paths that curl uses for FTP can create specially crafted path names containing the control characters '%00', trigger memory corruption and execute arbitrary code.


Mitigation

Install update from vendor's website.

Vulnerable software versions

curl (Alpine package): 7.21.1-r0 - 7.58.0-r2

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=06d873c35d45649783f1d3393b35034356679424
https://git.alpinelinux.org/aports/commit/?id=7d31ed74e2b6d74352c9a6f3ab2110c402a28f3a
https://git.alpinelinux.org/aports/commit/?id=edd0ff244c02b47646e66a1bc5737c6dadee86a5
https://git.alpinelinux.org/aports/commit/?id=f58c96201b3afe219bd0ba4e66ace7f03452ed29


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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