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TI-2025-10249 Aliases CVE-2025-11187GHSA-hpc7-gcqm-58fv

Improper validation of PBMAC1 parameters in PKCS#12 MAC verification

Priority MEDIUM 62CWE-476Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
Low · Low · High
Fix status
Partial Red Hat: 12 fixed, 4 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-476.

Summary

Issue summary: PBMAC1 parameters in PKCS#12 files are missing validation which can trigger a stack-based buffer overflow, invalid pointer or NULL pointer dereference during MAC verification. Impact summary: The stack buffer overflow or NULL pointer dereference may cause a crash leading to Denial of Service for an application that parses untrusted PKCS#12 files. The buffer overflow may also potentially enable code execution depending on platform mitigations. When verifying a PKCS#12 file that uses PBMAC1 for the MAC, the PBKDF2 salt and keylength parameters from the file are used without validation. If the value of keylength exceeds the size of the fixed stack buffer used for the derived key (64 bytes), the key derivation will overflow the buffer. The overflow length is attacker-controlled. Also, if the salt parameter is not an OCTET STRING type this can lead to invalid or NULL pointer dereference. Exploiting this issue requires a user or application to process a maliciously crafted PKCS#12 file. It is uncommon to accept untrusted PKCS#12 files in applications as they are usually used to store private keys which are trusted by definition. For this reason the issue was assessed as Moderate severity. The FIPS modules in 3.6, 3.5 and 3.4 are not affected by this issue, as PKCS#12 processing is outside the OpenSSL FIPS module boundary. OpenSSL 3.6, 3.5 and 3.4 are vulnerable to this issue. OpenSSL 3.3, 3.0, 1.1.1 and 1.0.2 are not affected by this issue as they do not support PBMAC1 in PKCS#12.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.05234 92nd percentileScored 2026-11-07
Fix Partial OpenSSL (OpenSSL): 3.6.1, 3.5.5, 3.4.4Red Hat: 13 advisoriesRed Hat: 12 fixed, 4 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OpenSSLOpenSSL3.6.0 to before 3.6.1; 3.5.0 to before 3.5.5; 3.4.0 to before 3.4.43.6.1, 3.5.5, 3.4.4Patch availableCNA
  • OpenSSL VendorOpenSSL Affected 3.6.0 to before 3.6.1; 3.5.0 to before 3.5.5; 3.4.0 to before 3.4.4 Fixed in 3.6.1, 3.5.5, 3.4.4 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*3.4.0 to before 3.4.4; 3.5.0 to before 3.5.5; 3.6.0 to before 3.6.1VulnerableOpenSSL
  • cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* Versions 3.4.0 to before 3.4.4; 3.5.0 to before 3.5.5; 3.6.0 to before 3.6.1 Vulnerable ·OpenSSL

Remediation

  • Fix · CNA OpenSSL (OpenSSL) Fixed in 3.6.1, 3.5.5, 3.4.4

Red Hat 13 advisories

  • RHSA-2026:82857 Released 2026-10-14 · Red Hat rating Important
    cert-manager Operator for Red Hat OpenShift 1.18.2
    • Cert Manager support for Red Hat OpenShift release 1.18 registry.redhat.io/cert-manager/cert-manager-operator-bundle
  • RHSA-2026:82372 Released 2026-10-13 · Red Hat rating Important
    cert-manager Operator for Red Hat OpenShift 1.18.2
    • Cert Manager support for Red Hat OpenShift release 1.18 registry.redhat.io/cert-manager/cert-manager-operator-rhel9
  • RHSA-2026:82354 Released 2026-10-13 · Red Hat rating Important
    cert-manager Operator for Red Hat OpenShift 1.18.2
    • Cert Manager support for Red Hat OpenShift release 1.18 registry.redhat.io/cert-manager/cert-manager-istio-csr-rhel9
Show 10 more Red Hat advisories
  • RHSA-2026:82347 Released 2026-10-13 · Red Hat rating Important
    cert-manager Operator for Red Hat OpenShift 1.18.2
    • Cert Manager support for Red Hat OpenShift release 1.18 registry.redhat.io/cert-manager/jetstack-cert-manager-acmesolver-rhel9, registry.redhat.io/cert-manager/jetstack-cert-manager-rhel9
  • RHSA-2026:7261 Released 2026-04-09 · Red Hat rating Important
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images openssl-3.5.6-0.1.hum1@aarch64, openssl-3.5.6-0.1.hum1@src, openssl-3.5.6-0.1.hum1@x86_64 +10
  • RHSA-2026:4943 Released 2026-03-18 · Red Hat rating Important
    Red Hat Update Infrastructure 5.1 security update
    • Red Hat Update Infrastructure 5 registry.redhat.io/rhui5/cds-rhel9, registry.redhat.io/rhui5/haproxy-rhel9, registry.redhat.io/rhui5/installer-rhel9 +1
  • RHSA-2026:3228 Released 2026-02-24 · Red Hat rating Important
    Cost Management Metrics Operator Update
    • Cost Management 4 registry.redhat.io/costmanagement/costmanagement-metrics-rhel9-operator
  • RHSA-2026:2563 Released 2026-02-11 · Red Hat rating Important
    Red Hat Update Infrastructure 5 security update
    • Red Hat Update Infrastructure 5 registry.redhat.io/rhui5/cds-rhel9, registry.redhat.io/rhui5/haproxy-rhel9, registry.redhat.io/rhui5/installer-rhel9 +1
  • RHSA-2026:2485 Released 2026-02-10 · Red Hat rating Important
    Insights proxy Container Image
    • Red Hat Insights proxy 1.5 registry.redhat.io/insights-proxy/insights-proxy-container-rhel9
  • RHSA-2026:1736 Released 2026-02-02 · Red Hat rating Important
    A Subscription Management tool for finding and reporting Red Hat product usage
    • Red Hat Discovery 2 registry.redhat.io/discovery/discovery-server-rhel9, registry.redhat.io/discovery/discovery-ui-rhel9
  • RHSA-2026:1496 Released 2026-01-28 · Red Hat rating Important
    openssl security update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) openssl-devel-1:3.2.2-16.el10_0.6, openssl-perl-1:3.2.2-16.el10_0.6
    • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) openssl-1:3.2.2-16.el10_0.6, openssl-libs-1:3.2.2-16.el10_0.6
  • RHSA-2026:1473 Released 2026-01-28 · Red Hat rating Important
    openssl security update
    • Red Hat Enterprise Linux AppStream (v. 9) openssl-devel-1:3.5.1-7.el9_7, openssl-perl-1:3.5.1-7.el9_7
    • Red Hat Enterprise Linux BaseOS (v. 9) openssl-1:3.5.1-7.el9_7, openssl-libs-1:3.5.1-7.el9_7
  • RHSA-2026:1472 Released 2026-01-28 · Red Hat rating Important
    openssl security update
    • Red Hat Enterprise Linux AppStream (v. 10) openssl-devel-1:3.5.1-7.el10_1, openssl-perl-1:3.5.1-7.el10_1
    • Red Hat Enterprise Linux BaseOS (v. 10) openssl-1:3.5.1-7.el10_1, openssl-libs-1:3.5.1-7.el10_1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    OpenSSL — openssl-library.org/news/secadv/20260127.txt

    12 records Highest priority Priority CRITICAL 1 CRITICAL, 3 MEDIUM, 8 LOW

    Other records, highest priority first

    • TI-2025-14107 Stack buffer overflow in CMS (Auth)EnvelopedData parsingPriority CRITICAL 85
    • TI-2025-42864 NULL Pointer Dereference in PKCS12_item_decrypt_d2i_ex functionPriority MEDIUM 41
    • TI-2025-42863 Missing ASN1_TYPE validation in TS_RESP_verify_response() functionPriority MEDIUM 41
    Show all 12 records → Advisory →

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 10AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 9AffectedNo fix yet: Fix deferred
Red Hat JBoss Core ServicesAffectedNo fix yet: Fix deferred
Red Hat OpenShift Container Platform 4AffectedNo fix yet: Fix deferred
Cert Manager support for Red Hat OpenShift release 1.18Fixed RHSA-2026:82347, RHSA-2026:82354, RHSA-2026:82372, RHSA-2026:82857
Cost Management 4Fixed RHSA-2026:3228
Red Hat Discovery 2Fixed RHSA-2026:1736
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:1472
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:1473
Red Hat Enterprise Linux AppStream EUS (v. 10.0)Fixed RHSA-2026:1496
Red Hat Enterprise Linux BaseOS (v. 10)Fixed RHSA-2026:1472
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2026:1473
Red Hat Enterprise Linux BaseOS EUS (v. 10.0)Fixed RHSA-2026:1496
Red Hat Hardened ImagesFixed RHSA-2026:7261
Red Hat Insights proxy 1.5Fixed RHSA-2026:2485
Red Hat Update Infrastructure 5Fixed RHSA-2026:2563, RHSA-2026:4943
Not affected: 8 products
  • Cost Management 4
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • Red Hat Enterprise Linux BaseOS EUS (v. 10.0)
  • Red Hat OpenShift Container Platform 4
  • Red Hat Update Infrastructure 5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-11187
  2. 2026-10-03 Alias added: GHSA-hpc7-gcqm-58fv
  3. 2026-10-14 Fix available: RHSA-2026:82372 · Red Hat
  4. 2026-10-14 Fix available: RHSA-2026:82354 · Red Hat
  5. 2026-10-14 Fix available: RHSA-2026:82347 · Red Hat
  6. 2026-10-15 Fix available: RHSA-2026:82857 · Red Hat
  7. 2026-10-16 Fix available: Cert Manager support for Red Hat OpenShift release 1.18 · Red Hat

References

Patch 3

Advisory 1

  • TI-2022-01915 The c_rehash script allows command injection CVSS 3.1CRITICAL 9.8
  • TI-2021-02645 SM2 Decryption Buffer Overflow CVSS 3.1CRITICAL 9.8
  • TI-2009-03392 The TLS protocol, and the SSL protocol 3.0 and possibly earlier, as used in Microsoft… CVSS 3.1CRITICAL 9.8
  • TI-2022-01176 The c_rehash script allows command injection CVSS 3.1CRITICAL 9.8
  • TI-2014-00154 The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly… KEVCVSS 3.1HIGH 7.5
  • TI-2025-14107 Stack buffer overflow in CMS (Auth)EnvelopedData parsing CVSS 3.1HIGH 8.8
See all 312 →

Sources

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