The _asn1_check_identifier function in GNU Libtasn1 through 4.12 causes a NULL pointer…
Priority MEDIUM 41CWE-476Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-476.
Summary
The _asn1_check_identifier function in GNU Libtasn1 through 4.12 causes a NULL pointer dereference and crash when reading crafted input that triggers assignment of a NULL value within an asn1_node structure. It may lead to a remote denial of service attack.
Why it matters now
EPSS 0.04896 92nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Will not fix Red Hat: no fix planned
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
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 Virtualization 3 | Affected | No fix planned: Will not fix |
| Red Hat Satellite 6 | Affected | No fix planned: Will not fix |
Timeline
- 2026-10-02 Threatist record created from CVE-2017-10790
- 2026-10-03 Alias added: GHSA-xcv8-6xfc-9686
References
Advisory 3
Other 3
- [debian-lts-announce] 20200628 [SECURITY] [DLA 2255-1] libtasn1-6 security update
- [bookkeeper-issues] 20210628 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8
- [bookkeeper-issues] 20210629 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8
More GNU Libtasn1 vulnerabilities
- 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
Sources
- CVE-2017-10790 · CVE Program
- CVE-2017-10790 · NVD
- FIRST EPSS
- GHSA-xcv8-6xfc-9686 · GitHub Advisory Database · CC BY 4.0
- CVE-2017-10790 · Red Hat security data · CC BY 4.0
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