Vulnerability-Lookup

OPENSUSE-SU-2022:10186-1

Vulnerability from csaf_opensuse - Published: 2022-11-02 08:52 - Updated: 2026-09-20 19:43

Summary

Security update for privoxy

Severity

Important

Notes

Title of the patch: Security update for privoxy

Description of the patch: This update for privoxy fixes the following issues: privoxy was updated to 3.0.33 (boo#1193584): * CVE-2021-44543: Encode the template name to prevent XSS (cross-side scripting) when Privoxy is configured to servce the user-manual itself * CVE-2021-44540: Free memory of compiled pattern spec before bailing * CVE-2021-44541: Free header memory when failing to get the request destination. * CVE-2021-44542: Prevent memory leaks when handling errors * Disable fast-redirects for a number of domains * Update default block lists * Many bug fixes and minor enhancements

Patchnames: openSUSE-2022-10186

CVE-2021-44540

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 12 products

Product	Version	Remediation
Unresolved product id: SUSE Package Hub 15 SP4:privoxy-0:3.0.33-bp154.3.3.1.aarch64	—	Vendor Fix
Unresolved product id: SUSE Package Hub 15 SP4:privoxy-0:3.0.33-bp154.3.3.1.i586	—	Vendor Fix
Unresolved product id: SUSE Package Hub 15 SP4:privoxy-0:3.0.33-bp154.3.3.1.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Package Hub 15 SP4:privoxy-0:3.0.33-bp154.3.3.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Package Hub 15 SP4:privoxy-0:3.0.33-bp154.3.3.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Package Hub 15 SP4:privoxy-doc-0:3.0.33-bp154.3.3.1.noarch	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.4:privoxy-0:3.0.33-bp154.3.3.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.4:privoxy-0:3.0.33-bp154.3.3.1.i586	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.4:privoxy-0:3.0.33-bp154.3.3.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.4:privoxy-0:3.0.33-bp154.3.3.1.s390x	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.4:privoxy-0:3.0.33-bp154.3.3.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.4:privoxy-doc-0:3.0.33-bp154.3.3.1.noarch	—	Vendor Fix

Threats

Impact important

CVE-2021-44541

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 12 products, the same list as for CVE-2021-44540

Threats

Impact important

CVE-2021-44542

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 12 products, the same list as for CVE-2021-44540

Threats

Impact important

CVE-2021-44543

6.1 (Medium)


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

Affected products

Recommended 12 products, the same list as for CVE-2021-44540

Threats

Impact moderate

References

17 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/1193584	self
https://www.suse.com/security/cve/CVE-2021-44540/	self
https://www.suse.com/security/cve/CVE-2021-44541/	self
https://www.suse.com/security/cve/CVE-2021-44542/	self
https://www.suse.com/security/cve/CVE-2021-44543/	self
https://www.suse.com/security/cve/CVE-2021-44540	external
https://bugzilla.suse.com/1193584	external
https://www.suse.com/security/cve/CVE-2021-44541	external
https://bugzilla.suse.com/1193584	external
https://www.suse.com/security/cve/CVE-2021-44542	external
https://bugzilla.suse.com/1193584	external
https://www.suse.com/security/cve/CVE-2021-44543	external
https://bugzilla.suse.com/1193584	external

JSON

To clipboard

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CVE-2021-44540 (GCVE-0-2021-44540)

Vulnerability from cvelistv5 – Published: 2021-12-23 19:48 – Updated: 2024-08-04 04:25

Summary

A vulnerability was found in Privoxy which was fixed in get_url_spec_param() by freeing memory of compiled pattern spec before bailing.

Severity

No CVSS data available.

CWE

CWE-401

Assigner

redhat redhat root

References

2 references

URL	Tags
https://www.privoxy.org/3.0.33/user-manual/whatsn…	x_refsource_MISC
https://www.privoxy.org/gitweb/?p=privoxy.git%3Ba…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	Privoxy	Affected: Privoxy 3.0.33

Show details on NVD website

JSON

To clipboard

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CVE-2021-44541 (GCVE-0-2021-44541)

Vulnerability from cvelistv5 – Published: 2021-12-23 19:48 – Updated: 2024-08-04 04:25

Summary

A vulnerability was found in Privoxy which was fixed in process_encrypted_request_headers() by freeing header memory when failing to get the request destination.

Severity

No CVSS data available.

CWE

CWE-401

Assigner

redhat redhat root

References

2 references

URL	Tags
https://www.privoxy.org/3.0.33/user-manual/whatsn…	x_refsource_MISC
https://www.privoxy.org/gitweb/?p=privoxy.git%3Ba…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	Privoxy	Affected: Privoxy 3.0.33

Show details on NVD website

JSON

To clipboard

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CVE-2021-44542 (GCVE-0-2021-44542)

Vulnerability from cvelistv5 – Published: 2021-12-23 19:48 – Updated: 2024-08-04 04:25

Summary

A memory leak vulnerability was found in Privoxy when handling errors.

Severity

No CVSS data available.

CWE

CWE-401

Assigner

redhat redhat root

References

2 references

URL	Tags
https://www.privoxy.org/3.0.33/user-manual/whatsn…	x_refsource_MISC
https://www.privoxy.org/gitweb/?p=privoxy.git%3Ba…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	Privoxy	Affected: Privoxy 3.0.33

Show details on NVD website

JSON

To clipboard

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CVE-2021-44543 (GCVE-0-2021-44543)

Vulnerability from cvelistv5 – Published: 2021-12-23 19:48 – Updated: 2024-08-04 04:25

Summary

An XSS vulnerability was found in Privoxy which was fixed in cgi_error_no_template() by encode the template name when Privoxy is configured to servce the user-manual itself.

Severity

No CVSS data available.

CWE

CWE-79

Assigner

redhat redhat root

References

2 references

URL	Tags
https://www.privoxy.org/3.0.33/user-manual/whatsn…	x_refsource_MISC
https://www.privoxy.org/gitweb/?p=privoxy.git%3Ba…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	privoxy	Affected: Privoxy 3.0.33

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.

Detection rules are retrieved from Rulezet.

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-2022:10186-1

CVE-2021-44540 (GCVE-0-2021-44540)

CVE-2021-44541 (GCVE-0-2021-44541)

CVE-2021-44542 (GCVE-0-2021-44542)

CVE-2021-44543 (GCVE-0-2021-44543)

Tags

Sightings

Nomenclature

Related by attack behaviour