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CVE-2025-32988— Gnutls: vulnerability in gnutls othername san export

Quick assessment

Affected
CVE-2025-32988
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

GnuTLS是GnuTLS开源的一款免费的用于实现SSL、TLS和DTLS协议的安全通信库。 GnuTLS存在资源管理错误漏洞，该漏洞源于SAN条目导出逻辑中的双重释放问题，可能导致拒绝服务或内存损坏。

CVSS 6.5 · Medium EPSS 1.24% · P67

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 15

VendorProduct Version RangeStatus
None None < 3.8.10 affected
Red Hat Red Hat Ceph Storage 7 7< * unaffected
Red Hat Red Hat Discovery 2 2.3.0-1760554384< * unaffected
Red Hat Red Hat Enterprise Linux 10 0:3.8.9-9.el10_0.14< * unaffected
Red Hat Red Hat Enterprise Linux 6 any unknown
Red Hat Red Hat Enterprise Linux 7 any unknown
Red Hat Red Hat Enterprise Linux 8 0:3.6.16-8.el8_10.4< * unaffected
0:3.6.16-8.el8_10.4< * unaffected
Red Hat Red Hat Enterprise Linux 9 0:3.8.3-6.el9_6.2< * unaffected
0:3.8.3-6.el9_6.2< * unaffected
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:3.7.6-21.el9_2.4< * unaffected
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support 0:3.8.3-4.el9_4.4< * unaffected
Red Hat Red Hat Hardened Images 3.8.12-1.1.hum1< * unaffected
Red Hat Red Hat Insights proxy 1.5 1.5.7-1759331989< * unaffected
Red Hat Red Hat OpenShift Container Platform 4 any affected

I. Basic Information for CVE-2025-32988

Vulnerability Information
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Vulnerability Title
Gnutls: vulnerability in gnutls othername san export
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in GnuTLS. A double-free vulnerability exists in GnuTLS due to incorrect ownership handling in the export logic of Subject Alternative Name (SAN) entries containing an otherName. If the type-id OID is invalid or malformed, GnuTLS will call asn1_delete_structure() on an ASN.1 node it does not own, leading to a double-free condition when the parent function or caller later attempts to free the same structure. This vulnerability can be triggered using only public GnuTLS APIs and may result in denial of service or memory corruption, depending on allocator behavior.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
双重释放
Source: CVE Program / CVE List V5
Vulnerability Title
GnuTLS 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GnuTLS是GnuTLS开源的一款免费的用于实现SSL、TLS和DTLS协议的安全通信库。 GnuTLS存在资源管理错误漏洞，该漏洞源于SAN条目导出逻辑中的双重释放问题，可能导致拒绝服务或内存损坏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- - 0 ~ 3.8.10 -
Red Hat Red Hat Enterprise Linux 10 0:3.8.9-9.el10_0.14 ~ * cpe:/o:redhat:enterprise_linux:10.0
Red Hat Red Hat Enterprise Linux 8 0:3.6.16-8.el8_10.4 ~ * cpe:/a:redhat:enterprise_linux:8::appstream
Red Hat Red Hat Enterprise Linux 8 0:3.6.16-8.el8_10.4 ~ * cpe:/a:redhat:enterprise_linux:8::appstream
Red Hat Red Hat Enterprise Linux 9 0:3.8.3-6.el9_6.2 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red Hat Red Hat Enterprise Linux 9 0:3.8.3-6.el9_6.2 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:3.7.6-21.el9_2.4 ~ * cpe:/a:redhat:rhel_e4s:9.2::appstream
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support 0:3.8.3-4.el9_4.4 ~ * cpe:/a:redhat:rhel_eus:9.4::appstream
Red Hat Red Hat Ceph Storage 7 7 ~ * cpe:/a:redhat:ceph_storage:7::el9
Red Hat Red Hat Discovery 2 2.3.0-1760554384 ~ * cpe:/a:redhat:discovery:2::el9
Red Hat Red Hat Hardened Images 3.8.12-1.1.hum1 ~ * cpe:/a:redhat:hummingbird:1
Red Hat Red Hat Insights proxy 1.5 1.5.7-1759331989 ~ * cpe:/a:redhat:insights_proxy:1.5::el9
Red Hat Red Hat Enterprise Linux 6 - cpe:/o:redhat:enterprise_linux:6
Red Hat Red Hat Enterprise Linux 7 - cpe:/o:redhat:enterprise_linux:7
Red Hat Red Hat OpenShift Container Platform 4 - cpe:/a:redhat:openshift:4

II. Public POCs for CVE-2025-32988

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2025-32988

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Vendor Advisories for CVE-2025-32988 (4)

Mailing List Discussions for CVE-2025-32988 (1)

IV. Related Vulnerabilities

Same weakness: CWE-415

V. Comments for CVE-2025-32988

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