Vulnerability-Lookup

SUSE-SU-2022:3797-1

Vulnerability from csaf_suse - Published: 2022-10-27 12:34 - Updated: 2022-10-27 12:34

Summary

Security update for libtasn1

Severity

Critical

Notes

Title of the patch: Security update for libtasn1

Description of the patch: This update for libtasn1 fixes the following issues: Security issue fixed: - CVE-2018-1000654: Fixed a denial of service in the asn1 parser (bsc#1105435). - CVE-2017-6891: Added safety check to fix a stack overflow issue (bsc#1040621). - CVE-2021-46848: Fixed off-by-one array size check that affects asn1_encode_simple_der (bsc#1204690)

Patchnames: SUSE-2022-3797,SUSE-SLE-SERVER-12-SP2-BCL-2022-3797

CVE-2017-6891

5.1 (Medium)


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

Affected products

Recommended 3 products

Product	Version	Remediation
Unresolved product id: SUSE Linux Enterprise Server 12 SP2-BCL:libtasn1-3.7-13.7.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP2-BCL:libtasn1-6-3.7-13.7.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP2-BCL:libtasn1-6-32bit-3.7-13.7.1.x86_64	—	Vendor Fix

Threats

Impact moderate

CVE-2018-1000654

6.2 (Medium)


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

Affected products

Recommended 3 products, the same list as for CVE-2017-6891

Threats

Impact moderate

CVE-2021-46848

9.1 (Critical)


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

Affected products

Recommended 3 products, the same list as for CVE-2017-6891

Threats

Impact critical

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/1040621	self
https://bugzilla.suse.com/1105435	self
https://bugzilla.suse.com/1204690	self
https://www.suse.com/security/cve/CVE-2017-6891/	self
https://www.suse.com/security/cve/CVE-2018-1000654/	self
https://www.suse.com/security/cve/CVE-2021-46848/	self
https://www.suse.com/security/cve/CVE-2017-6891	external
https://bugzilla.suse.com/1040621	external
https://bugzilla.suse.com/1049210	external
https://bugzilla.suse.com/1149679	external
https://www.suse.com/security/cve/CVE-2018-1000654	external
https://bugzilla.suse.com/1105435	external
https://www.suse.com/security/cve/CVE-2021-46848	external
https://bugzilla.suse.com/1204690	external
https://bugzilla.suse.com/1205081	external
https://bugzilla.suse.com/1205311	external
https://bugzilla.suse.com/1208025	external

JSON

To clipboard

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        {
          "category": "general",
          "text": "Two errors in the \"asn1_find_node()\" function (lib/parser_aux.c) within GnuTLS libtasn1 version 4.10 can be exploited to cause a stacked-based buffer overflow by tricking a user into processing a specially crafted assignments file via the e.g. asn1Coding utility.",
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          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
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          "text": "https://www.suse.com/security/cve/CVE-2018-1000654"
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        {
          "category": "general",
          "text": "GNU Libtasn1-4.13 libtasn1-4.13 version libtasn1-4.13, libtasn1-4.12 contains a DoS, specifically CPU usage will reach 100% when running asn1Paser against the POC due to an issue in _asn1_expand_object_id(p_tree), after a long time, the program will be killed. This attack appears to be exploitable via parsing a crafted file.",
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CVE-2017-6891 (GCVE-0-2017-6891)

Vulnerability from cvelistv5 – Published: 2017-05-22 19:00 – Updated: 2024-08-05 15:41

Summary

Two errors in the "asn1_find_node()" function (lib/parser_aux.c) within GnuTLS libtasn1 version 4.10 can be exploited to cause a stacked-based buffer overflow by tricking a user into processing a specially crafted assignments file via the e.g. asn1Coding utility.

Severity

No CVSS data available.

CWE

Stack-based buffer overflow leading to system compromise

Assigner

flexera mitre root

References

10 references

URL	Tags
https://security.gentoo.org/glsa/201710-11	vendor-advisoryx_refsource_GENTOO
http://www.debian.org/security/2017/dsa-3861	vendor-advisoryx_refsource_DEBIAN
https://secuniaresearch.flexerasoftware.com/advis…	x_refsource_MISC
https://secuniaresearch.flexerasoftware.com/secun…	x_refsource_MISC
http://git.savannah.gnu.org/gitweb/?p=libtasn1.gi…	x_refsource_CONFIRM
http://www.securityfocus.com/bid/98641	vdb-entryx_refsource_BID
http://www.securitytracker.com/id/1038619	vdb-entryx_refsource_SECTRACK
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://lists.apache.org/thread.html/rf4c02775860…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r58af02e294b…	mailing-listx_refsource_MLIST

Impacted products

1 product

Vendor	Product	Version
Flexera Software LLC	GnuTLS libtasn1	Affected: 4.10. Other versions may also be affected.

Date Public

2017-05-22 00:00

Show details on NVD website

JSON

To clipboard

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CVE-2018-1000654 (GCVE-0-2018-1000654)

Vulnerability from cvelistv5 – Published: 2018-08-20 19:00 – Updated: 2024-08-05 12:40

Summary

GNU Libtasn1-4.13 libtasn1-4.13 version libtasn1-4.13, libtasn1-4.12 contains a DoS, specifically CPU usage will reach 100% when running asn1Paser against the POC due to an issue in _asn1_expand_object_id(p_tree), after a long time, the program will be killed. This attack appears to be exploitable via parsing a crafted file.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

5 references

URL	Tags
https://gitlab.com/gnutls/libtasn1/issues/4	x_refsource_CONFIRM
http://www.securityfocus.com/bid/105151	vdb-entryx_refsource_BID
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://lists.apache.org/thread.html/rf9fa47ab664…	mailing-listx_refsource_MLIST

Date Public

2018-08-12 00:00

Show details on NVD website

JSON

To clipboard

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CVE-2021-46848 (GCVE-0-2021-46848)

Vulnerability from cvelistv5 – Published: 2022-10-24 00:00 – Updated: 2025-05-07 14:32

Summary

GNU Libtasn1 before 4.19.0 has an ETYPE_OK off-by-one array size check that affects asn1_encode_simple_der.

Severity

9.1 (Critical)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-05-07 14:30 UTC

CWE

n/a
CWE-193 - Off-by-one Error

Assigner

mitre mitre root

References

9 references

URL	Tags
https://gitlab.com/gnutls/libtasn1/-/commit/44a70…
https://gitlab.com/gnutls/libtasn1/-/issues/32
https://bugs.gentoo.org/866237
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://security.netapp.com/advisory/ntap-2022111…
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.debian.org/debian-lts-announce/2023…	mailing-list

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-2022:3797-1

CVE-2017-6891 (GCVE-0-2017-6891)

CVE-2018-1000654 (GCVE-0-2018-1000654)

CVE-2021-46848 (GCVE-0-2021-46848)

Tags

Sightings

Nomenclature

Related by attack behaviour