CVE-2021-26691

In Apache HTTP Server versions 2.4.0 to 2.4.46 a specially crafted SessionHeader sent by an origin server could cause a heap overflow

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
http://httpd.apache.org/security/vulnerabilities_24.html	Vendor Advisory
https://lists.apache.org/thread.html/re026d3da9d7824bd93b9f871c0fdda978d960c7e62d8c43cba8d0bf3%40%3Ccvs.httpd.apache.org%3E	Mailing List Release Notes Vendor Advisory
https://lists.apache.org/thread.html/r7f2b70b621651548f4b6f027552f1dd91705d7111bb5d15cda0a68dd@%3Cdev.httpd.apache.org%3E	Mailing List Vendor Advisory
https://lists.apache.org/thread.html/r50cae1b71f1e7421069036b213c26da7d8f47dd59874e3bd956959fe@%3Cannounce.httpd.apache.org%3E	Mailing List Vendor Advisory
http://www.openwall.com/lists/oss-security/2021/06/10/7	Mailing List Third Party Advisory
https://security.netapp.com/advisory/ntap-20210702-0001/	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/07/msg00006.html	Mailing List Third Party Advisory
https://www.debian.org/security/2021/dsa-4937	Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202107-38	Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/	Mailing List Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2021.html	Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2022.html	Patch Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:9.0:::::::*
	cpe:2.3:o:debian:debian_linux:10.0:::::::*

Configuration 3 (hide)

OR	cpe:2.3:o:fedoraproject:fedora:34:::::::*
	cpe:2.3:o:fedoraproject:fedora:35:::::::*

Configuration 4 (hide)

OR	cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0.0:::::::*
	cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:::::::*
	cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:::::::*
	cpe:2.3:a:oracle:instantis_enterprisetrack:17.3:::::::*
	cpe:2.3:a:oracle:secure_backup::::::::
	cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:::::::*

Configuration 5 (hide)

cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*

Information

Published : 2021-06-10 00:15

Updated : 2022-03-25 11:32

NVD link : CVE-2021-26691

Mitre link : CVE-2021-26691

JSON object : View

CWE

CWE-787

Out-of-bounds Write

Products Affected

netapp

cloud_backup

oracle

instantis_enterprisetrack
zfs_storage_appliance_kit
secure_backup
enterprise_manager_ops_center

apache

http_server

fedoraproject

fedora

debian

debian_linux

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9.8 /10