TI-2018-16007 Aliases CVE-2018-1000654 GHSA-g69v-w5wh-rhwv

GNU Libtasn1-4.13 libtasn1-4.13 version libtasn1-4.13, libtasn1-4.12 contains a DoS…

LOW 29Published 2018-08-20 · Updated 2024-08-05

Key facts

Attack vector: Local
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · None · High
Fix status: Deferred Red Hat: fix deferred

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat.

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.

Why it matters now

EPSS 0.01982 80th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Deferred Red Hat: fix deferred

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:gnu:libtasn1:4.12:::::::*	4.12	Vulnerable	GNU
cpe:2.3:a:gnu:libtasn1:4.13:::::::*	4.13	Vulnerable	GNU

cpe:2.3:a:gnu:libtasn1:4.12:*:*:*:*:*:*:* Versions 4.12 Vulnerable ·GNU
cpe:2.3:a:gnu:libtasn1:4.13:*:*:*:*:*:*:* Versions 4.13 Vulnerable ·GNU

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Enterprise Linux 6	Affected	No fix planned: Will not fix
Red Hat Enterprise Linux 7	Affected	No fix planned: Will not fix
Red Hat Enterprise Linux 8	Affected	No fix yet: Fix deferred
Red Hat Satellite 6	Affected	No fix planned: Will not fix
Red Hat Virtualization 4	Affected	No fix planned: Will not fix

Timeline

2026-10-02 Threatist record created from CVE-2018-1000654
2026-10-03 Alias added: GHSA-g69v-w5wh-rhwv

References

Exploit 1

https://gitlab.com/gnutls/libtasn1/issues/4

Advisory 2

Other 1

[mina-dev] 20210225 [jira] [Created] (FTPSERVER-500) Security vulnerability in common/lib/log4j-1.2.17.jar

TI-2015-02477 Stack-based buffer overflow in asn1_der_decoding in libtasn1 before 4.4 allows remote… CVSS 2.0HIGH 10.0
TI-2021-21531 GNU Libtasn1 before 4.19.0 has an ETYPE_OK off-by-one array size check that affects asn1_encode_simple_der. CVSS 3.1CRITICAL 9.1
TI-2016-03409 The _asn1_extract_der_octet function in lib/decoding.c in GNU Libtasn1 before 4.8, when… CVSS 3.0MEDIUM 5.9
TI-2017-04623 Out-of-bounds write in Flexera Software LLC GnuTLS libtasn1 CVSS 3.1HIGH 8.8
TI-2015-03063 The _asn1_extract_der_octet function in lib/decoding.c in GNU Libtasn1 before 4.5 allows… CVSS 2.0MEDIUM 4.3
TI-2025-12022 Out-of-bounds write in GNU libtasn1 CVSS 3.1HIGH 7.5

See all 12 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences