Denial of service in glibc

1) Out-of-bounds read

EUVDB-ID: #VU50329

Risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-25013

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

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

External links

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

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.