#VU50329 Out-of-bounds read in Glibc - CVE-2019-25013

Vulnerability identifier: #VU50329

Vulnerability risk: Low

CVSSv4.0: 0.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-25013

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.

The vulnerability exists due to a boundary condition in GNU C Library within the iconv feature when processing multi-byte input sequences in the EUC-KR encoding. A remote attacker can pass specially crafted input to the application, trigger out-of-bounds read error and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Glibc: 0.1 - 5.3.12

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External links
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4Y6TX47P47KABSFOL26FLDNVCWXDKDEZ/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TVCUNLQ3HXGS4VPUQKWTJGRAW2KTFGXS/
https://sourceware.org/bugzilla/show_bug.cgi?id=24973
https://sourceware.org/git/?p=glibc.git;a=commit;h=ee7a3144c9922808181009b7b3e50e852fb4999b

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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.