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CVE-2025-32988VulnerabilityPublished Updated

CVE-2025-32988: Red Hat Enterprise Linux 10 · Double Free

Affects Red Hat Enterprise Linux 10Source CVE Database V5

0

Not known to be exploited · CVSS 6.5 Medium : upgrade to 3.8.9 when convenient.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
1.4% chance of exploitation in 30 days – higher than 73% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 3.8.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Jul 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

What to do

Upgrade gnutls/gnutls to 3.8.9.

Affected software

ProductAffectedFixed in
Red HatRed Hat Enterprise Linux 10Affected–Fixed in–
Red HatRed Hat Enterprise Linux 8Affected–Fixed in–
Red HatRed Hat Enterprise Linux 9Affected–Fixed in–
Red HatRed Hat Enterprise Linux 9.2 Update Services for SAP SolutionsAffected–Fixed in–
Red HatRed Hat Enterprise Linux 9.4 Extended Update SupportAffected–Fixed in–
Red HatRed Hat Ceph Storage 7Affected–Fixed in–
Red HatRed Hat Discovery 2Affected–Fixed in–
Red HatRed Hat Hardened ImagesAffected–Fixed in–
Red HatRed Hat Insights proxy 1.5Affected–Fixed in–
Red HatRed Hat Enterprise Linux 6Affected–Fixed in–
Red HatRed Hat Enterprise Linux 7Affected–Fixed in–
Red HatRed Hat OpenShift Container Platform 4Affected–Fixed in–
Gnutlsgnutls/gnutlspkg:deb/gnutls/gnutlsOther threatsAffected
  • =0
  • >=3.8.3 <3.8.9
Fixed in
  • 3.8.9

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Red Hat has released security updates that fix this vulnerability in GnuTLS. Users should apply the updated packages as described in Red Hat advisories RHSA-2025:16115 for Red Hat Enterprise Linux 10 and RHSA-2025:16116 for Red Hat Enterprise Linux 9. Details on applying these updates are available at https://access.redhat.com/articles/11258. No additional mitigation steps are required beyond applying the official patches.

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.

References

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