CVE-2018-19591

Gentoo Linux Security Advisory 201908-06

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In the GNU C Library (aka glibc or libc6) through 2.28, attempting to resolve a crafted hostname via getaddrinfo() leads to the allocation of a socket descriptor that is not closed. This is related to the if_nametoindex() function.

En la biblioteca GNU C (también conocida como glibc o libc6) hasta la versión 2.28, los intentos para resolver un nombre de host manipulado mediante getaddrinfo() conducen a la asignación de un descriptor de un socket que no está cerrado. Esto está relacionado con la función if_nametoindex().

Florian Weimer discovered that the GNU C Library incorrectly handled certain memory operations. A remote attacker could use this issue to cause the GNU C Library to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 16.04 LTS. It was discovered that the GNU C Library incorrectly handled certain SSE2-optimized memmove operations. A remote attacker could use this issue to cause the GNU C Library to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 16.04 LTS. Various other issues were also addressed.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-11-26 CVE Reserved
2018-12-04 CVE Published
2024-08-05 CVE Updated
2024-08-05 First Exploit
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-20: Improper Input Validation

CAPEC

References (11)

URL	Tag	Source
http://www.securityfocus.com/bid/106037	Third Party Advisory
http://www.securitytracker.com/id/1042174	Third Party Advisory
https://security.netapp.com/advisory/ntap-20190321-0003	X_refsource_confirm
https://sourceware.org/git/?p=glibc.git%3Ba=blob_plain%3Bf=NEWS%3Bhb=HEAD	X_refsource_confirm
https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=commitdiff%3Bh=d527c860f5a3f0ed687bd03f0cb464612dc23408	X_refsource_confirm

URL	Date	SRC
https://sourceware.org/bugzilla/show_bug.cgi?id=23927	2024-08-05

URL	Date	SRC

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BO7WHN52GFMC5F2I2232GFIPSSXWFV7G	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M52KE4YR3GNMHQUOS3DKAGZD5TQ5D5UH	2023-11-07
https://security.gentoo.org/glsa/201903-09	2023-11-07
https://security.gentoo.org/glsa/201908-06	2023-11-07
https://usn.ubuntu.com/4416-1	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				<= 2.28 Search vendor "Gnu" for product "Glibc" and version " <= 2.28"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				28 Search vendor "Fedoraproject" for product "Fedora" and version "28"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				29 Search vendor "Fedoraproject" for product "Fedora" and version "29"		-		Affected