// For flags

CVE-2018-11237

glibc: Buffer overflow in __mempcpy_avx512_no_vzeroupper

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An AVX-512-optimized implementation of the mempcpy function in the GNU C Library (aka glibc or libc6) 2.27 and earlier may write data beyond the target buffer, leading to a buffer overflow in __mempcpy_avx512_no_vzeroupper.

Una implementación optimizada para AVX-512 de la función mempcpy en GNU C Library (también conocido como glibc o libc6), en versiones 2.27 y anteriores, podría escribir datos más allá del búfer objetivo, lo que desemboca en un desbordamiento de búfer en __mempcpy_avx512_no_vzeroupper.

A buffer overflow has been discovered in the GNU C Library (aka glibc or libc6) in the __mempcpy_avx512_no_vzeroupper function when particular conditions are met. An attacker could use this vulnerability to cause a denial of service or potentially execute code.

GNU glibc versions prior to 2.27 suffer from a buffer overflow vulnerability.

*Credits: N/A
CVSS Scores
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
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low
Attack Vector
Local
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
  • 2023-05-12 EPSS Updated
  • 2024-08-05 CVE Updated
  • 2024-08-05 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
  • CWE-787: Out-of-bounds Write
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Gnu
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Glibc
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<= 2.27
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-
Affected
Redhat
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Virtualization Host
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4.0
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-
Affected
Redhat
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Enterprise Linux Desktop
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7.0
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-
Affected
Redhat
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Enterprise Linux Server
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7.0
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-
Affected
Redhat
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Enterprise Linux Workstation
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7.0
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-
Affected
Oracle
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Communications Session Border Controller
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8.0.0
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-
Affected
Oracle
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Communications Session Border Controller
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8.1.0
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-
Affected
Oracle
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Communications Session Border Controller
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8.2.0
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-
Affected
Oracle
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Enterprise Communications Broker
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3.0.0
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-
Affected
Oracle
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Enterprise Communications Broker
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3.1.0
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Affected
Netapp
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Data Ontap Edge
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--
Affected
Netapp
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Element Software Management
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--
Affected
Canonical
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Ubuntu Linux
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16.04
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esm
Affected
Canonical
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Ubuntu Linux
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18.04
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lts
Affected
Canonical
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Ubuntu Linux
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19.10
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Affected