#VU37503 Out-of-bounds read in Debian Linux - CVE-2018-7439

Vulnerability identifier: #VU37503

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-2018-7439

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Debian Linux
Operating systems & Components / Operating system

Vendor: Debian

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to heap-based buffer over-read in the function read_mini_biff_next_record. A remote attacker can perform a denial of service attack.

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

Vulnerable software versions

Debian Linux: 7.0 - 9.0

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External links
https://bugzilla.redhat.com/show_bug.cgi?id=1547892
https://groups.google.com/forum/#!topic/spatialite-users/b-d9iB5TDPE
https://lists.debian.org/debian-lts-announce/2018/03/msg00000.html
https://security.gentoo.org/glsa/202007-44
https://www.debian.org/security/2018/dsa-4129

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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.