CVE-2026-2100— P11-kit: null dereference via c_derivekey with specific null parameters
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I. Basic Information for CVE-2026-2100
Vulnerability Information
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Vulnerability Title
P11-kit: null dereference via c_derivekey with specific null parameters
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw was found in p11-kit. A remote attacker could exploit this vulnerability by calling the C_DeriveKey function on a remote token with specific IBM kyber or IBM btc derive mechanism parameters set to NULL. This could lead to the RPC-client attempting to return an uninitialized value, potentially resulting in a NULL dereference or undefined behavior. This issue may cause an application level denial of service or other unpredictable system states.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用未经初始化的指针
Source: NVD (National Vulnerability Database)
Vulnerability Title
P11-glue P11-kit 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
P11-glue P11-kit是P11-glue个人开发者的一个用于加载和枚举PKCS模块的工具软件。 P11-glue P11-kit存在安全漏洞，该漏洞源于C_DeriveKey函数处理特定参数时可能返回未初始化值，可能导致空指针取消引用或拒绝服务。
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 |
|---|---|---|---|---|
| Red Hat | Red Hat Hardened Images | 0.26.2-1.1.hum1 ~ * | cpe:/a:redhat:hummingbird:1 | |
| Red Hat | Red Hat Enterprise Linux 10 | - | cpe:/o:redhat:enterprise_linux:10 | |
| 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 Enterprise Linux 8 | - | cpe:/o:redhat:enterprise_linux:8 | |
| Red Hat | Red Hat Enterprise Linux 9 | - | cpe:/o:redhat:enterprise_linux:9 | |
| Red Hat | Red Hat OpenShift Container Platform 4 | - | cpe:/a:redhat:openshift:4 |
II. Public POCs for CVE-2026-2100
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|---|
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- 2437308 – (CVE-2026-2100) CVE-2026-2100 p11-kit: p11-kit: NULL dereference via C_DeriveKey with specific NULL parametersissue-trackingx_refsource_REDHAT
- https://nvd.nist.gov/vuln/detail/CVE-2026-2100
Same Patch Batch · Red Hat · 2026-03-26 · 17 CVEs total
| CVE-2025-12805 | 8.1 HIGH | Llama-stack-k8s-operator: llama stack service exposed across namespaces due to missing net |
| CVE-2026-1961 | 8.0 HIGH | Forman: foreman: remote code execution via command injection in websocket proxy |
| CVE-2026-2436 | 6.5 MEDIUM | Libsoup: libsoup: denial of service via use-after-free in soupserver during tls handshake |
| CVE-2026-3121 | 6.5 MEDIUM | Keycloak: org.keycloak/keycloak-services: keycloak: privilege escalation via manage-client |
| CVE-2026-4887 | 6.1 MEDIUM | Gimp: gimp:memory disclosure and denial of service via specially crafted pcx image |
| CVE-2026-4897 | 5.5 MEDIUM | Polkit: polkit: denial of service via unbounded input processing through standard input |
| CVE-2026-2272 | 4.3 MEDIUM | Gimp: gimp: memory corruption due to integer overflow in ico file handling |
| CVE-2026-3190 | 4.3 MEDIUM | Keycloak: keycloak: information disclosure via improper role enforcement in uma 2.0 protec |
| CVE-2026-2271 | 3.3 LOW | Gimp: gimp: denial of service via crafted psp image file |
| CVE-2026-0968 | 3.1 LOW | Libssh: libssh: denial of service due to malformed sftp message |
| CVE-2026-4874 | 3.1 LOW | Org.keycloak.protocol.oidc.grants: org.keycloak.services.managers: keycloak: server-side r |
| CVE-2026-2239 | 2.8 LOW | Gimp: gimp: application crash (dos) via crafted psd file due to heap-buffer-overflow |
| CVE-2026-0965 | Libssh: libssh: denial of service via improper configuration file handling | |
| CVE-2026-0967 | Libssh: libssh: denial of service via inefficient regular expression processing | |
| CVE-2026-0964 | Libssh: improper sanitation of paths received from scp servers | |
| CVE-2026-0966 | Libssh: buffer underflow in ssh_get_hexa() on invalid input |
IV. Related Vulnerabilities
Same product: Red Hat Hardened Images
- CVE-2026-33846
Gnutls: gnutls: denial of service via heap buffer overflow i - CVE-2026-6732
Libxml2: libxml2: denial of service via crafted xsd-validate - CVE-2026-1584
Gnutls: gnutls: remote denial of service via crafted clienth - CVE-2025-14821
Libssh: libssh: insecure default configuration leads to loca - CVE-2026-5745
Libarchive: a null pointer dereference vulnerability exists
Same vendor: Red Hat
- CVE-2026-42011
Gnutls: gnutls: security bypass due to incorrect name constr - CVE-2026-42010
Gnutls: gnutls: authentication bypass via nul character in u - CVE-2026-6420
Keylime: keylime: security bypass due to hardcoded tpm quote - CVE-2026-34956
Openvswitch: open vswitch: denial of service via malformed f - CVE-2026-34002
Xorg: xwayland: x.org x server: information disclosure or de
Same weakness: CWE-824
V. Comments for CVE-2026-2100
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