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TI-2006-00624 Aliases CVE-2006-0645GHSA-2w9r-mr74-qj9p

Tiny ASN.1 Library (libtasn1) before 0.2.18, as used by (1) GnuTLS 1.2.x before 1.2.10…

Priority LOW 39Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Partial · Partial · Partial
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.

Summary

Tiny ASN.1 Library (libtasn1) before 0.2.18, as used by (1) GnuTLS 1.2.x before 1.2.10 and 1.3.x before 1.3.4, and (2) GNU Shishi, allows attackers to crash the DER decoder and possibly execute arbitrary code via "out-of-bounds access" caused by invalid input, as demonstrated by the ProtoVer SSL test suite.

Why it matters now

EPSS 0.03892 90th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 21

CPEVersionsRoleVendor
cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.1.0:*:*:*:*:*:*:*0.1.0VulnerableFree Software Foundation
cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.1.1:*:*:*:*:*:*:*0.1.1VulnerableFree Software Foundation
cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.1.2:*:*:*:*:*:*:*0.1.2VulnerableFree Software Foundation
cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.0:*:*:*:*:*:*:*0.2.0VulnerableFree Software Foundation
cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.1:*:*:*:*:*:*:*0.2.1VulnerableFree Software Foundation
cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.2:*:*:*:*:*:*:*0.2.2VulnerableFree Software Foundation
cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.3:*:*:*:*:*:*:*0.2.3VulnerableFree Software Foundation
cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.4:*:*:*:*:*:*:*0.2.4VulnerableFree Software Foundation
cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.5:*:*:*:*:*:*:*0.2.5VulnerableFree Software Foundation
cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.6:*:*:*:*:*:*:*0.2.6VulnerableFree Software Foundation
  • cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.1.0:*:*:*:*:*:*:* Versions 0.1.0 Vulnerable ·Free Software Foundation
  • cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.1.1:*:*:*:*:*:*:* Versions 0.1.1 Vulnerable ·Free Software Foundation
  • cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.1.2:*:*:*:*:*:*:* Versions 0.1.2 Vulnerable ·Free Software Foundation
  • cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.0:*:*:*:*:*:*:* Versions 0.2.0 Vulnerable ·Free Software Foundation
  • cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.1:*:*:*:*:*:*:* Versions 0.2.1 Vulnerable ·Free Software Foundation
  • cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.2:*:*:*:*:*:*:* Versions 0.2.2 Vulnerable ·Free Software Foundation
  • cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.3:*:*:*:*:*:*:* Versions 0.2.3 Vulnerable ·Free Software Foundation
  • cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.4:*:*:*:*:*:*:* Versions 0.2.4 Vulnerable ·Free Software Foundation
  • cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.5:*:*:*:*:*:*:* Versions 0.2.5 Vulnerable ·Free Software Foundation
  • cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.6:*:*:*:*:*:*:* Versions 0.2.6 Vulnerable ·Free Software Foundation
Show 11 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.7:*:*:*:*:*:*:*0.2.7VulnerableFree Software Foundation
cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.8:*:*:*:*:*:*:*0.2.8VulnerableFree Software Foundation
cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.9:*:*:*:*:*:*:*0.2.9VulnerableFree Software Foundation
cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.10:*:*:*:*:*:*:*0.2.10VulnerableFree Software Foundation
cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.11:*:*:*:*:*:*:*0.2.11VulnerableFree Software Foundation
cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.12:*:*:*:*:*:*:*0.2.12VulnerableFree Software Foundation
cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.13:*:*:*:*:*:*:*0.2.13VulnerableFree Software Foundation
cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.14:*:*:*:*:*:*:*0.2.14VulnerableFree Software Foundation
cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.15:*:*:*:*:*:*:*0.2.15VulnerableFree Software Foundation
cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.16:*:*:*:*:*:*:*0.2.16VulnerableFree Software Foundation
cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.17:*:*:*:*:*:*:*0.2.17VulnerableFree Software Foundation
  • cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.7:*:*:*:*:*:*:* Versions 0.2.7 Vulnerable ·Free Software Foundation
  • cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.8:*:*:*:*:*:*:* Versions 0.2.8 Vulnerable ·Free Software Foundation
  • cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.9:*:*:*:*:*:*:* Versions 0.2.9 Vulnerable ·Free Software Foundation
  • cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.10:*:*:*:*:*:*:* Versions 0.2.10 Vulnerable ·Free Software Foundation
  • cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.11:*:*:*:*:*:*:* Versions 0.2.11 Vulnerable ·Free Software Foundation
  • cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.12:*:*:*:*:*:*:* Versions 0.2.12 Vulnerable ·Free Software Foundation
  • cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.13:*:*:*:*:*:*:* Versions 0.2.13 Vulnerable ·Free Software Foundation
  • cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.14:*:*:*:*:*:*:* Versions 0.2.14 Vulnerable ·Free Software Foundation
  • cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.15:*:*:*:*:*:*:* Versions 0.2.15 Vulnerable ·Free Software Foundation
  • cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.16:*:*:*:*:*:*:* Versions 0.2.16 Vulnerable ·Free Software Foundation
  • cpe:2.3:a:free_software_foundation_inc.:libtasn1:0.2.17:*:*:*:*:*:*:* Versions 0.2.17 Vulnerable ·Free Software Foundation

Remediation

Red Hat 1 advisory

  • RHSA-2006:0207 Released 2006-02-10 · Red Hat rating Important
    gnutls security update
    • Red Hat Enterprise Linux AS version 4 gnutls-1.0.20-3.2.2, gnutls-1.0.20-3.2.2.i386, gnutls-1.0.20-3.2.2.ia64 +5
    • Red Hat Enterprise Linux Desktop version 4 gnutls-1.0.20-3.2.2, gnutls-1.0.20-3.2.2.i386, gnutls-devel-1.0.20-3.2.2 +1
    • Red Hat Enterprise Linux ES version 4 gnutls-1.0.20-3.2.2, gnutls-1.0.20-3.2.2.i386, gnutls-1.0.20-3.2.2.ia64 +3
    • Red Hat Enterprise Linux WS version 4 gnutls-1.0.20-3.2.2, gnutls-1.0.20-3.2.2.i386, gnutls-1.0.20-3.2.2.ia64 +3

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux AS version 4Fixed RHSA-2006:0207
Red Hat Enterprise Linux Desktop version 4Fixed RHSA-2006:0207
Red Hat Enterprise Linux ES version 4Fixed RHSA-2006:0207
Red Hat Enterprise Linux WS version 4Fixed RHSA-2006:0207

Timeline

  1. 2026-10-02 Threatist record created from CVE-2006-0645
  2. 2026-10-03 Alias added: GHSA-2w9r-mr74-qj9p
  3. 2026-10-11 EPSS moved to the 90th–95th percentile

References

Advisory 9

Other 10

  • TI-2004-00367 Unknown vulnerability in libtasn1 0.1.x before 0.1.2, and 0.2.x before 0.2.7, related to the DER parsing functions. CVSS 2.0HIGH 10.0

Sources

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