Vulnerability identifier: #VU17859

Vulnerability risk: Medium

CVSSv3.1: 6.2 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-9169

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Glibc
Universal components / Libraries / Libraries used by multiple products

Vendor: GNU

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack or gain access to sensitive information.

The vulnerability exists due to heap-based buffer over-read via an attempted case-insensitive regular-expression match. A remote attacker can perform a denial of service attack or gain access to sensitive information.

Mitigation
The vulnerability is fixed in GIT repository.

Vulnerable software versions

Glibc: 2.29

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External links
http://debbugs.gnu.org/cgi/bugreport.cgi?bug=34140
http://debbugs.gnu.org/cgi/bugreport.cgi?bug=34142
http://sourceware.org/bugzilla/show_bug.cgi?id=24114
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commit;h=583dd860d5b833037175247230a328f0050dbfe9

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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.