#VU37186 Stack-based buffer overflow in cfitsio and Fedora - CVE-2018-3849

Vulnerability identifier: #VU37186

Vulnerability risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2018-3849

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
cfitsio
Other software / Other software solutions
Fedora
Operating systems & Components / Operating system

Vendor: heasarc.gsfc.nasa.gov
Fedoraproject

Description

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

The vulnerability exists due to a boundary error when processing the library can cause a stack-based buffer overflow overwriting arbitrary data. An attacker can deliver an FIT image to trigger this vulnerability and potentially gain code execution. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

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

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

cfitsio: 3.42

Fedora: 3.42 - 28

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External links
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K46I2MFPCEOGC5LLDXZSWPB3EBPON3KA/
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0531

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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.