CVE-2018-11236

glibc: Integer overflow in stdlib/canonicalize.c on 32-bit architectures leading to stack-based buffer overflow

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

stdlib/canonicalize.c in the GNU C Library (aka glibc or libc6) 2.27 and earlier, when processing very long pathname arguments to the realpath function, could encounter an integer overflow on 32-bit architectures, leading to a stack-based buffer overflow and, potentially, arbitrary code execution.

stdlib/canonicalize.c en GNU C Library (también conocida como glibc o libc6), en versiones 2.27 y anteriores, al procesar argumentos con un nombre de ruta muy largo en la función realpath, podría encontrarse con un desbordamiento de enteros en arquitecturas de 32 bits. Esto podría desembocar en un desbordamiento de búfer basado en pila y en una potencial ejecución de código arbitrario.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-05-18 CVE Reserved
2018-05-18 CVE Published
2024-04-27 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-121: Stack-based Buffer Overflow
CWE-190: Integer Overflow or Wraparound
CWE-787: Out-of-bounds Write

CAPEC

References (11)

URL	Tag	Source
http://www.securityfocus.com/bid/104255	Third Party Advisory
https://security.netapp.com/advisory/ntap-20190329-0001	Broken Link
https://security.netapp.com/advisory/ntap-20190401-0001	Third Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=22786	Issue Tracking
https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=5460617d1567657621107d895ee2dd83bc1f88f2	X_refsource_misc

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2018:3092	2023-11-07
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html	2023-11-07

URL	Date	SRC
https://access.redhat.com/errata/RHBA-2019:0327	2023-11-07
https://usn.ubuntu.com/4416-1	2023-11-07
https://access.redhat.com/security/cve/CVE-2018-11236	2018-10-30
https://bugzilla.redhat.com/show_bug.cgi?id=1581269	2018-10-30

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"				<= 2.27 Search vendor "Gnu" for product "Glibc" and version " <= 2.27"		-		Affected
Redhat Search vendor "Redhat"		Virtualization Host Search vendor "Redhat" for product "Virtualization Host"				4.0 Search vendor "Redhat" for product "Virtualization Host" and version "4.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Desktop Search vendor "Redhat" for product "Enterprise Linux Desktop"				7.0 Search vendor "Redhat" for product "Enterprise Linux Desktop" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Search vendor "Redhat" for product "Enterprise Linux Server"				7.0 Search vendor "Redhat" for product "Enterprise Linux Server" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Workstation Search vendor "Redhat" for product "Enterprise Linux Workstation"				7.0 Search vendor "Redhat" for product "Enterprise Linux Workstation" and version "7.0"		-		Affected
Oracle Search vendor "Oracle"		Communications Session Border Controller Search vendor "Oracle" for product "Communications Session Border Controller"				8.0.0 Search vendor "Oracle" for product "Communications Session Border Controller" and version "8.0.0"		-		Affected
Oracle Search vendor "Oracle"		Communications Session Border Controller Search vendor "Oracle" for product "Communications Session Border Controller"				8.1.0 Search vendor "Oracle" for product "Communications Session Border Controller" and version "8.1.0"		-		Affected
Oracle Search vendor "Oracle"		Communications Session Border Controller Search vendor "Oracle" for product "Communications Session Border Controller"				8.2.0 Search vendor "Oracle" for product "Communications Session Border Controller" and version "8.2.0"		-		Affected
Oracle Search vendor "Oracle"		Enterprise Communications Broker Search vendor "Oracle" for product "Enterprise Communications Broker"				3.0.0 Search vendor "Oracle" for product "Enterprise Communications Broker" and version "3.0.0"		-		Affected
Oracle Search vendor "Oracle"		Enterprise Communications Broker Search vendor "Oracle" for product "Enterprise Communications Broker"				3.1.0 Search vendor "Oracle" for product "Enterprise Communications Broker" and version "3.1.0"		-		Affected
Netapp Search vendor "Netapp"		Data Ontap Edge Search vendor "Netapp" for product "Data Ontap Edge"				-		-		Affected
Netapp Search vendor "Netapp"		Element Software Management Search vendor "Netapp" for product "Element Software Management"				-		-		Affected