Input validation error in Glibc

1) Input validation error

EUVDB-ID: #VU110134

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2002-0684

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

Buffer overflow in DNS resolver functions that perform lookup of network names and addresses, as used in BIND 4.9.8 and ported to glibc 2.2.5 and earlier, allows remote malicious DNS servers to execute arbitrary code through a subroutine used by functions such as getnetbyname and getnetbyaddr.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Glibc: 0.1 - 2.2.5

CPE2.3

• cpe:2.3:a:gnu:glibc:0.1:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:0.4:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:0.4.1:*:*:*:*:*:*:*

External links

https://distro.conectiva.com/atualizacoes/?id=a&anuncio=000507
https://marc.info/?l=bugtraq&m=102581482511612&w=2
https://rhn.redhat.com/errata/RHSA-2002-139.html
https://www.kb.cert.org/vuls/id/542971
https://www.linux-mandrake.com/en/security/2002/MDKSA-2002-050.php

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.