CVE-2015-5180

glibc: DNS resolver NULL pointer dereference with crafted record type

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

res_query in libresolv in glibc before 2.25 allows remote attackers to cause a denial of service (NULL pointer dereference and process crash).

La función res_query de libresolv en glibc anterior a la versión 2.25 permite a un atacante remoto provocar una denegación de servicio (desreferencia a NULL pointer y caída del proceso)

It was discovered that the GNU C Library incorrectly handled the strxfrm function. An attacker could use this issue to cause a denial of service or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. It was discovered that an integer overflow existed in the _IO_wstr_overflow function of the GNU C Library. An attacker could use this to cause a denial of service or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. Various other issues were also addressed.

*Credits: N/A

CVSS Scores

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

Attack Vector

Local

Attack Complexity

High

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-07-01 CVE Reserved
2017-03-21 CVE Published
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (12)

URL	Tag	Source
http://www.securityfocus.com/bid/99324	Third Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=18784	Issue Tracking
https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=fc82b0a2dfe7dbd35671c10510a8da1043d746a5	X_refsource_confirm
https://sourceware.org/ml/libc-alpha/2017-02/msg00079.html	Mailing List
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html	X_refsource_misc

URL	Date	SRC

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=1249603	2018-04-10
https://sourceware.org/bugzilla/attachment.cgi?id=8492	2023-02-13

URL	Date	SRC
http://www.ubuntu.com/usn/USN-3239-1	2023-02-13
http://www.ubuntu.com/usn/USN-3239-2	2023-02-13
https://access.redhat.com/errata/RHSA-2018:0805	2023-02-13
https://security.gentoo.org/glsa/201706-19	2023-02-13
https://access.redhat.com/security/cve/CVE-2015-5180	2018-04-10

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		lts		Affected
Gnu Search vendor "Gnu"		Glibc Search vendor "Gnu" for product "Glibc"				<= 2.24 Search vendor "Gnu" for product "Glibc" and version " <= 2.24"		-		Affected