Vulnerability-Lookup

SUSE-SU-2022:14887-1

Vulnerability from csaf_suse - Published: 2022-02-18 09:39 - Updated: 2022-02-18 09:39

Summary

Security update for strongswan

Severity

Important

Notes

Title of the patch: Security update for strongswan

Description of the patch: This update for strongswan fixes the following issues: - CVE-2018-16151: Fixed flaws in gmp plugin that could lead to authorization bypass. (bsc#1107874) - CVE-2018-16152: Fixed flaws in gmp plugin that could lead to authorization bypass. (bsc#1107874) - CVE-2018-17540: Fixed insufficient input validation in gmp plugin. (bsc#1109845) - CVE-2021-45079: Fixed authentication bypass in EAP authentication. (bsc#1194471)

Patchnames: sleposp3-strongswan-14887,slessp4-strongswan-14887

CVE-2018-16151

4.8 (Medium)


                
                  CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected products

Recommended 10 products

Product	Version	Remediation
Unresolved product id: SUSE Linux Enterprise Point of Sale 11 SP3:strongswan-4.4.0-6.36.12.1.i586	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Point of Sale 11 SP3:strongswan-doc-4.4.0-6.36.12.1.i586	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 11 SP4-LTSS:strongswan-4.4.0-6.36.12.1.i586	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 11 SP4-LTSS:strongswan-4.4.0-6.36.12.1.ppc64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 11 SP4-LTSS:strongswan-4.4.0-6.36.12.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 11 SP4-LTSS:strongswan-4.4.0-6.36.12.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 11 SP4-LTSS:strongswan-doc-4.4.0-6.36.12.1.i586	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 11 SP4-LTSS:strongswan-doc-4.4.0-6.36.12.1.ppc64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 11 SP4-LTSS:strongswan-doc-4.4.0-6.36.12.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 11 SP4-LTSS:strongswan-doc-4.4.0-6.36.12.1.x86_64	—	Vendor Fix

Threats

Impact moderate

CVE-2018-16152

4.8 (Medium)


                
                  CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected products

Recommended 10 products, the same list as for CVE-2018-16151

Threats

Impact moderate

CVE-2018-17540

7 (High)


                
                  CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H

Affected products

Recommended 10 products, the same list as for CVE-2018-16151

Threats

Impact moderate

CVE-2021-45079

6.5 (Medium)


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

Affected products

Recommended 10 products, the same list as for CVE-2018-16151

Threats

Impact moderate

References

21 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/s…	self
https://www.suse.com/support/update/announcement/…	self
https://lists.suse.com/pipermail/sle-security-upd…	self
https://bugzilla.suse.com/1107874	self
https://bugzilla.suse.com/1109845	self
https://bugzilla.suse.com/1194471	self
https://www.suse.com/security/cve/CVE-2018-16151/	self
https://www.suse.com/security/cve/CVE-2018-16152/	self
https://www.suse.com/security/cve/CVE-2018-17540/	self
https://www.suse.com/security/cve/CVE-2021-45079/	self
https://www.suse.com/security/cve/CVE-2018-16151	external
https://bugzilla.suse.com/1107874	external
https://bugzilla.suse.com/1109845	external
https://www.suse.com/security/cve/CVE-2018-16152	external
https://bugzilla.suse.com/1107874	external
https://www.suse.com/security/cve/CVE-2018-17540	external
https://bugzilla.suse.com/1107874	external
https://bugzilla.suse.com/1109845	external
https://www.suse.com/security/cve/CVE-2021-45079	external
https://bugzilla.suse.com/1194471	external

JSON

To clipboard

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  "vulnerabilities": [
    {
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      "ids": [
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          "title": "CVE description"
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          "text": "In strongSwan before 5.9.5, a malicious responder can send an EAP-Success message too early without actually authenticating the client and (in the case of EAP methods with mutual authentication and EAP-only authentication for IKEv2) even without server authentication.",
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}

CVE-2018-16151 (GCVE-0-2018-16151)

Vulnerability from cvelistv5 – Published: 2018-09-26 21:00 – Updated: 2025-12-03 20:26

Summary

In verify_emsa_pkcs1_signature() in gmp_rsa_public_key.c in the gmp plugin in strongSwan 4.x and 5.x before 5.7.0, the RSA implementation based on GMP does not reject excess data after the encoded algorithm OID during PKCS#1 v1.5 signature verification. Similar to the flaw in the same version of strongSwan regarding digestAlgorithm.parameters, a remote attacker can forge signatures when small public exponents are being used, which could lead to impersonation when only an RSA signature is used for IKEv2 authentication.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-12-03 20:25 UTC

CWE

n/a
CWE-347 - Improper Verification of Cryptographic Signature

Assigner

mitre mitre root

References

8 references

URL	Tags
https://www.debian.org/security/2018/dsa-4305	vendor-advisoryx_refsource_DEBIAN
https://security.gentoo.org/glsa/201811-16	vendor-advisoryx_refsource_GENTOO
https://www.strongswan.org/blog/2018/09/24/strong…	x_refsource_CONFIRM
https://lists.debian.org/debian-lts-announce/2018…	mailing-listx_refsource_MLIST
https://usn.ubuntu.com/3771-1/	vendor-advisoryx_refsource_UBUNTU
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE

Date Public

2018-09-24 00:00

Show details on NVD website

JSON

To clipboard

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          {
            "cvssV3_1": {
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              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "HIGH",
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              "scope": "UNCHANGED",
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CVE-2018-16152 (GCVE-0-2018-16152)

Vulnerability from cvelistv5 – Published: 2018-09-26 21:00 – Updated: 2025-12-03 20:24

Summary

In verify_emsa_pkcs1_signature() in gmp_rsa_public_key.c in the gmp plugin in strongSwan 4.x and 5.x before 5.7.0, the RSA implementation based on GMP does not reject excess data in the digestAlgorithm.parameters field during PKCS#1 v1.5 signature verification. Consequently, a remote attacker can forge signatures when small public exponents are being used, which could lead to impersonation when only an RSA signature is used for IKEv2 authentication. This is a variant of CVE-2006-4790 and CVE-2014-1568.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-12-03 20:24 UTC

CWE

n/a
CWE-347 - Improper Verification of Cryptographic Signature

Assigner

mitre mitre root

References

8 references

URL	Tags
https://www.debian.org/security/2018/dsa-4305	vendor-advisoryx_refsource_DEBIAN
https://security.gentoo.org/glsa/201811-16	vendor-advisoryx_refsource_GENTOO
https://www.strongswan.org/blog/2018/09/24/strong…	x_refsource_CONFIRM
https://lists.debian.org/debian-lts-announce/2018…	mailing-listx_refsource_MLIST
https://usn.ubuntu.com/3771-1/	vendor-advisoryx_refsource_UBUNTU
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE

Date Public

2018-09-24 00:00

Show details on NVD website

JSON

To clipboard

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CVE-2018-17540 (GCVE-0-2018-17540)

Vulnerability from cvelistv5 – Published: 2018-10-03 20:00 – Updated: 2024-08-05 10:54

Summary

The gmp plugin in strongSwan before 5.7.1 has a Buffer Overflow via a crafted certificate.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

9 references

URL	Tags
https://www.debian.org/security/2018/dsa-4309	vendor-advisoryx_refsource_DEBIAN
https://lists.debian.org/debian-lts-announce/2018…	mailing-listx_refsource_MLIST
https://www.strongswan.org/blog/2018/10/01/strong…	x_refsource_CONFIRM
https://usn.ubuntu.com/3774-1/	vendor-advisoryx_refsource_UBUNTU
https://download.strongswan.org/security/CVE-2018…	x_refsource_CONFIRM
https://security.gentoo.org/glsa/201811-16	vendor-advisoryx_refsource_GENTOO
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE

Date Public

2018-10-01 00:00

Show details on NVD website

JSON

To clipboard

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CVE-2021-45079 (GCVE-0-2021-45079)

Vulnerability from cvelistv5 – Published: 2022-01-31 07:15 – Updated: 2024-08-04 04:32

Summary

In strongSwan before 5.9.5, a malicious responder can send an EAP-Success message too early without actually authenticating the client and (in the case of EAP methods with mutual authentication and EAP-only authentication for IKEv2) even without server authentication.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

1 reference

URL	Tags
https://www.strongswan.org/blog/2022/01/24/strong…	x_refsource_MISC

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

SUSE-SU-2022:14887-1

CVE-2018-16151 (GCVE-0-2018-16151)

CVE-2018-16152 (GCVE-0-2018-16152)

CVE-2018-17540 (GCVE-0-2018-17540)

CVE-2021-45079 (GCVE-0-2021-45079)

Tags

Sightings

Nomenclature

Related by attack behaviour