Vulnerability-Lookup

OPENSUSE-SU-2021:1438-1

Vulnerability from csaf_opensuse - Published: 2021-11-02 11:51 - Updated: 2026-09-20 19:30

Summary

Security update for apache2

Severity

Important

Notes

Title of the patch: Security update for apache2

Description of the patch: This update for apache2 fixes the following issues: - CVE-2021-40438: Fixed a SRF via a crafted request uri-path. (bsc#1190703) - CVE-2021-36160: Fixed an out-of-bounds read via a crafted request uri-path. (bsc#1190702) - CVE-2021-39275: Fixed an out-of-bounds write in ap_escape_quotes() via malicious input. (bsc#1190666) - CVE-2021-34798: Fixed a NULL pointer dereference via malformed requests. (bsc#1190669) This update was imported from the SUSE:SLE-15-SP2:Update update project.

Patchnames: openSUSE-2021-1438

CVE-2021-34798

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Recommended 15 products

Product	Version	Remediation
Unresolved product id: openSUSE Leap 15.2:apache2-0:2.4.43-lp152.2.21.1.i586	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.2:apache2-0:2.4.43-lp152.2.21.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.2:apache2-devel-0:2.4.43-lp152.2.21.1.i586	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.2:apache2-devel-0:2.4.43-lp152.2.21.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.2:apache2-doc-0:2.4.43-lp152.2.21.1.noarch	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.2:apache2-event-0:2.4.43-lp152.2.21.1.i586	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.2:apache2-event-0:2.4.43-lp152.2.21.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.2:apache2-example-pages-0:2.4.43-lp152.2.21.1.i586	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.2:apache2-example-pages-0:2.4.43-lp152.2.21.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.2:apache2-prefork-0:2.4.43-lp152.2.21.1.i586	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.2:apache2-prefork-0:2.4.43-lp152.2.21.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.2:apache2-utils-0:2.4.43-lp152.2.21.1.i586	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.2:apache2-utils-0:2.4.43-lp152.2.21.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.2:apache2-worker-0:2.4.43-lp152.2.21.1.i586	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.2:apache2-worker-0:2.4.43-lp152.2.21.1.x86_64	—	Vendor Fix

Threats

Impact important

CVE-2021-36160

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Recommended 15 products, the same list as for CVE-2021-34798

Threats

Impact important

CVE-2021-39275

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Recommended 15 products, the same list as for CVE-2021-34798

Threats

Impact important

CVE-2021-40438

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

Recommended 15 products, the same list as for CVE-2021-34798

Threats

Impact important

References

21 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/o…	self
https://lists.opensuse.org/archives/list/security…	self
https://lists.opensuse.org/archives/list/security…	self
https://bugzilla.suse.com/1190666	self
https://bugzilla.suse.com/1190669	self
https://bugzilla.suse.com/1190702	self
https://bugzilla.suse.com/1190703	self
https://www.suse.com/security/cve/CVE-2021-34798/	self
https://www.suse.com/security/cve/CVE-2021-36160/	self
https://www.suse.com/security/cve/CVE-2021-39275/	self
https://www.suse.com/security/cve/CVE-2021-40438/	self
https://www.suse.com/security/cve/CVE-2021-34798	external
https://bugzilla.suse.com/1190669	external
https://bugzilla.suse.com/1191297	external
https://www.suse.com/security/cve/CVE-2021-36160	external
https://bugzilla.suse.com/1190702	external
https://www.suse.com/security/cve/CVE-2021-39275	external
https://bugzilla.suse.com/1190666	external
https://www.suse.com/security/cve/CVE-2021-40438	external
https://bugzilla.suse.com/1190703	external

JSON

To clipboard

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CVE-2021-34798 (GCVE-0-2021-34798)

Vulnerability from cvelistv5 – Published: 2021-09-16 14:40 – Updated: 2024-08-04 00:26

Title

NULL pointer dereference in httpd core

Summary

Malformed requests may cause the server to dereference a NULL pointer. This issue affects Apache HTTP Server 2.4.48 and earlier.

Severity

No CVSS data available.

CWE

CWE-476 - NULL Pointer Dereference

Assigner

apache CNA under the mitre root

CNA scorecard B 76/100 over 1067 records in the last 180 days details

References

17 references

URL	Tags
http://httpd.apache.org/security/vulnerabilities_…	x_refsource_MISC
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.apache.org/thread.html/r82838efc5fa…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r82c077663f9…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r3925e167d5e…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r61fdbfc26ab…	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://www.debian.org/security/2021/dsa-4982	vendor-advisoryx_refsource_DEBIAN
https://tools.cisco.com/security/center/content/C…	vendor-advisoryx_refsource_CISCO
https://www.oracle.com/security-alerts/cpujan2022.html	x_refsource_MISC
https://www.tenable.com/security/tns-2021-17	x_refsource_CONFIRM
https://security.netapp.com/advisory/ntap-2021100…	x_refsource_CONFIRM
https://kc.mcafee.com/corporate/index?page=conten…	x_refsource_CONFIRM
https://www.oracle.com/security-alerts/cpuapr2022.html	x_refsource_MISC
https://cert-portal.siemens.com/productcert/pdf/s…	x_refsource_CONFIRM
https://security.gentoo.org/glsa/202208-20	vendor-advisoryx_refsource_GENTOO

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache HTTP Server	Affected: Apache HTTP Server 2.4 , ≤ 2.4.48 (custom)

Credits

The issue was discovered by the Apache HTTP security team

Show details on NVD website

JSON

To clipboard

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CVE-2021-36160 (GCVE-0-2021-36160)

Vulnerability from cvelistv5 – Published: 2021-09-16 14:40 – Updated: 2024-08-04 00:47

Title

mod_proxy_uwsgi out of bound read

Summary

A carefully crafted request uri-path can cause mod_proxy_uwsgi to read above the allocated memory and crash (DoS). This issue affects Apache HTTP Server versions 2.4.30 to 2.4.48 (inclusive).

Severity

No CVSS data available.

CWE

CWE-125 - out of bound read

Assigner

apache CNA under the mitre root

CNA scorecard B 76/100 over 1067 records in the last 180 days details

References

24 references

URL	Tags
http://httpd.apache.org/security/vulnerabilities_…	x_refsource_MISC
https://lists.apache.org/thread.html/re4162adc051…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/ree7519d7141…	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.apache.org/thread.html/r82838efc5fa…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r82c077663f9…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r3925e167d5e…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r61fdbfc26ab…	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/ra1c05a39258…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r73260f6ba9f…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r7f2746e916e…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r2eb200ac134…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r94a61a15171…	mailing-listx_refsource_MLIST
https://www.debian.org/security/2021/dsa-4982	vendor-advisoryx_refsource_DEBIAN
https://lists.apache.org/thread.html/ra87a69d0703…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/rb2341c8786d…	mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://tools.cisco.com/security/center/content/C…	vendor-advisoryx_refsource_CISCO
https://www.oracle.com/security-alerts/cpujan2022.html	x_refsource_MISC
https://security.netapp.com/advisory/ntap-2021100…	x_refsource_CONFIRM
https://www.oracle.com/security-alerts/cpuapr2022.html	x_refsource_MISC
https://security.gentoo.org/glsa/202208-20	vendor-advisoryx_refsource_GENTOO

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache HTTP Server	Affected: Apache HTTP Server 2.4 , ≤ 2.4.48 (custom)

Credits

LI ZHI XIN from NSFocus Security Team

Show details on NVD website

JSON

To clipboard

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CVE-2021-39275 (GCVE-0-2021-39275)

Vulnerability from cvelistv5 – Published: 2021-09-16 14:40 – Updated: 2024-08-04 02:06

Title

ap_escape_quotes buffer overflow

Summary

ap_escape_quotes() may write beyond the end of a buffer when given malicious input. No included modules pass untrusted data to these functions, but third-party / external modules may. This issue affects Apache HTTP Server 2.4.48 and earlier.

Severity

No CVSS data available.

CWE

Buffer Overflow

Assigner

apache CNA under the mitre root

CNA scorecard B 76/100 over 1067 records in the last 180 days details

References

15 references

URL	Tags
https://httpd.apache.org/security/vulnerabilities…	x_refsource_MISC
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.apache.org/thread.html/r82838efc5fa…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r82c077663f9…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r3925e167d5e…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r61fdbfc26ab…	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://www.debian.org/security/2021/dsa-4982	vendor-advisoryx_refsource_DEBIAN
https://tools.cisco.com/security/center/content/C…	vendor-advisoryx_refsource_CISCO
https://www.oracle.com/security-alerts/cpujan2022.html	x_refsource_MISC
https://security.netapp.com/advisory/ntap-2021100…	x_refsource_CONFIRM
https://www.oracle.com/security-alerts/cpuapr2022.html	x_refsource_MISC
https://cert-portal.siemens.com/productcert/pdf/s…	x_refsource_CONFIRM
https://security.gentoo.org/glsa/202208-20	vendor-advisoryx_refsource_GENTOO

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache HTTP Server	Affected: Apache HTTP Server 2.4 , ≤ 2.4.48 (custom)

Credits

ClusterFuzz

Show details on NVD website

JSON

To clipboard

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CVE-2021-40438 (GCVE-0-2021-40438)

Vulnerability from cvelistv5 – Published: 2021-09-16 14:40 – Updated: 2026-08-06 03:55

Title

mod_proxy SSRF

Summary

A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier.

Severity

9 (Critical)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

SSVC

Exploitation: active Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2021-10-14 00:00 UTC

CWE

CWE-918 - Server Side Request Forgery (SSRF)

Assigner

apache CNA under the mitre root

CNA scorecard B 76/100 over 1067 records in the last 180 days details

References

20 references

URL	Tags
https://httpd.apache.org/security/vulnerabilities…	x_refsource_MISC
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.apache.org/thread.html/r82838efc5fa…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r82c077663f9…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r3925e167d5e…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r61fdbfc26ab…	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r2eb200ac134…	mailing-listx_refsource_MLIST
https://www.debian.org/security/2021/dsa-4982	vendor-advisoryx_refsource_DEBIAN
https://lists.apache.org/thread.html/r210807d0bb5…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/rf6954e60b1c…	mailing-listx_refsource_MLIST
https://tools.cisco.com/security/center/content/C…	vendor-advisoryx_refsource_CISCO
https://www.oracle.com/security-alerts/cpujan2022.html	x_refsource_MISC
https://www.tenable.com/security/tns-2021-17	x_refsource_CONFIRM
https://security.netapp.com/advisory/ntap-2021100…	x_refsource_CONFIRM
https://www.oracle.com/security-alerts/cpuapr2022.html	x_refsource_MISC
https://cert-portal.siemens.com/productcert/pdf/s…	x_refsource_CONFIRM
https://security.gentoo.org/glsa/202208-20	vendor-advisoryx_refsource_GENTOO
https://www.cisa.gov/known-exploited-vulnerabilit…	government-resource

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache HTTP Server	Affected: Apache HTTP Server 2.4 , ≤ 2.4.48 (custom)

Credits

The issue was discovered by the Apache HTTP security team while analysing CVE-2021-36160

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

OPENSUSE-SU-2021:1438-1

CVE-2021-34798 (GCVE-0-2021-34798)

CVE-2021-36160 (GCVE-0-2021-36160)

CVE-2021-39275 (GCVE-0-2021-39275)

CVE-2021-40438 (GCVE-0-2021-40438)

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour