CVE-2021-23133
Summary
| CVE | CVE-2021-23133 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2021-04-22 18:15:00 UTC |
| Updated | 2023-11-07 03:30:00 UTC |
| Description | A race condition in Linux kernel SCTP sockets (net/sctp/socket.c) before 5.12-rc8 can lead to kernel privilege escalation from the context of a network service or an unprivileged process. If sctp_destroy_sock is called without sock_net(sk)->sctp.addr_wq_lock then an element is removed from the auto_asconf_splist list without any proper locking. This can be exploited by an attacker with network service privileges to escalate to root or from the context of an unprivileged user directly if a BPF_CGROUP_INET_SOCK_CREATE is attached which denies creation of some SCTP socket. |
Risk And Classification
Problem Types: CWE-362
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Broadcom | Brocade Fabric Operating System | - | All | All | All |
| Operating System | Debian | Debian Linux | 9.0 | All | All | All |
| Operating System | Fedoraproject | Fedora | 32 | All | All | All |
| Operating System | Fedoraproject | Fedora | 33 | All | All | All |
| Operating System | Fedoraproject | Fedora | 34 | All | All | All |
| Operating System | Linux | Linux Kernel | All | All | All | All |
| Operating System | Linux | Linux Kernel | 5.12 | - | All | All |
| Operating System | Linux | Linux Kernel | 5.12 | rc1 | All | All |
| Operating System | Linux | Linux Kernel | 5.12 | rc2 | All | All |
| Operating System | Linux | Linux Kernel | 5.12 | rc3 | All | All |
| Operating System | Linux | Linux Kernel | 5.12 | rc4 | All | All |
| Operating System | Linux | Linux Kernel | 5.12 | rc5 | All | All |
| Operating System | Linux | Linux Kernel | 5.12 | rc6 | All | All |
| Operating System | Linux | Linux Kernel | 5.12 | rc7 | All | All |
| Application | Netapp | Cloud Backup | - | All | All | All |
| Hardware | Netapp | H300e | - | All | All | All |
| Operating System | Netapp | H300e Firmware | - | All | All | All |
| Hardware | Netapp | H300s | - | All | All | All |
| Operating System | Netapp | H300s Firmware | - | All | All | All |
| Hardware | Netapp | H410c | - | All | All | All |
| Operating System | Netapp | H410c Firmware | - | All | All | All |
| Hardware | Netapp | H410s | - | All | All | All |
| Operating System | Netapp | H410s Firmware | - | All | All | All |
| Hardware | Netapp | H500e | - | All | All | All |
| Operating System | Netapp | H500e Firmware | - | All | All | All |
| Hardware | Netapp | H500s | - | All | All | All |
| Operating System | Netapp | H500s Firmware | - | All | All | All |
| Hardware | Netapp | H700e | - | All | All | All |
| Operating System | Netapp | H700e Firmware | - | All | All | All |
| Hardware | Netapp | H700s | - | All | All | All |
| Operating System | Netapp | H700s Firmware | - | All | All | All |
| Hardware | Netapp | Solidfire Baseboard Management Controller | - | All | All | All |
| Operating System | Netapp | Solidfire Baseboard Management Controller Firmware | - | All | All | All |
| Application | Netapp | Solidfire Hci Management Node | - | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| [SECURITY] Fedora 33 Update: kernel-5.11.16-200.fc33 - package-announce - Fedora Mailing-Lists | lists.fedoraproject.org | ||
| [SECURITY] Fedora 34 Update: kernel-5.11.16-300.fc34 - package-announce - Fedora Mailing-Lists | FEDORA | lists.fedoraproject.org | |
| [SECURITY] Fedora 34 Update: kernel-5.11.16-300.fc34 - package-announce - Fedora Mailing-Lists | lists.fedoraproject.org | ||
| [SECURITY] [DLA 2689-1] linux security update | MLIST | lists.debian.org | |
| [SECURITY] Fedora 33 Update: kernel-5.11.16-200.fc33 - package-announce - Fedora Mailing-Lists | FEDORA | lists.fedoraproject.org | |
| [SECURITY] Fedora 32 Update: kernel-5.11.16-100.fc32 - package-announce - Fedora Mailing-Lists | FEDORA | lists.fedoraproject.org | |
| [SECURITY] [DLA 2690-1] linux-4.19 security update | MLIST | lists.debian.org | |
| CVE-2021-23133 Linux Kernel Vulnerability in NetApp Products | NetApp Product Security | CONFIRM | security.netapp.com | |
| oss-security - Re: CVE-2021-23133: Linux kernel: race condition in sctp sockets | MLIST | www.openwall.com | |
| kernel/git/torvalds/linux.git - Linux kernel source tree | CONFIRM | git.kernel.org | |
| oss-security - Re: CVE-2021-23133: Linux kernel: race condition in sctp sockets | MLIST | www.openwall.com | |
| [SECURITY] Fedora 32 Update: kernel-5.11.16-100.fc32 - package-announce - Fedora Mailing-Lists | lists.fedoraproject.org | ||
| oss-security - Re: CVE-2021-23133: Linux kernel: race condition in sctp sockets | MLIST | www.openwall.com | |
| oss-security - CVE-2021-23133: Linux kernel: race condition in sctp sockets | CONFIRM | www.openwall.com | |
| oss-security - Re: CVE-2021-23133: Linux kernel: race condition in sctp sockets | MLIST | www.openwall.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
LEGACY: Or Cohen from Palo Alto Networks
Legacy QID Mappings
- 159277 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel (ELSA-2021-9306)
- 159278 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel-container (ELSA-2021-9307)
- 159304 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel (ELSA-2021-9349)
- 159305 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel-container (ELSA-2021-9351)
- 159306 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel (ELSA-2021-9362)
- 159307 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel-container (ELSA-2021-9363)
- 159492 Oracle Enterprise Linux Security Update for kernel (ELSA-2021-4356)
- 178679 Debian Security Update for linux-4.19 (DLA 2690-1)
- 178680 Debian Security Update for linux (DLA 2689-1)
- 179939 Debian Security Update for linux (CVE-2021-23133)
- 198416 Ubuntu Security Notification for Linux kernel vulnerabilities (USN-4997-1)
- 198417 Ubuntu Security Notification for Linux kernel vulnerabilities (USN-4999-1)
- 198418 Ubuntu Security Notification for Linux kernel vulnerabilities (USN-5000-1)
- 198419 Ubuntu Security Notification for Linux kernel (OEM) vulnerabilities (USN-5001-1)
- 198421 Ubuntu Security Notification for Linux kernel vulnerabilities (USN-5003-1)
- 198425 Ubuntu Security Notification for Linux kernel (KVM) vulnerabilities (USN-5000-2)
- 198426 Ubuntu Security Notification for Linux kernel (KVM) vulnerabilities (USN-4997-2)
- 239816 Red Hat Update for kernel security (RHSA-2021:4356)
- 239879 Red Hat Update for kernel-rt (RHSA-2021:4140)
- 281274 Fedora Security Update for kernel (FEDORA-2021-a963f04012)
- 281275 Fedora Security Update for kernel (FEDORA-2021-e6b4847979)
- 281276 Fedora Security Update for kernel (FEDORA-2021-8cd093f639)
- 352366 Amazon Linux Security Advisory for kernel: ALAS-2021-1503
- 352375 Amazon Linux Security Advisory for kernel: ALAS2-2021-1636
- 353148 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.4-2022-003
- 353159 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.10-2022-001
- 376371 F5 BIG-IP Application Security Manager (ASM), Local Traffic Manager (LTM), Access Policy Manager (APM) Linux kernel Vulnerability (K67416037)
- 6140265 AWS Bottlerocket Security Update for kernel (GHSA-x849-g985-wxr9)
- 670416 EulerOS Security Update for kernel (EulerOS-SA-2021-1983)
- 670438 EulerOS Security Update for kernel (EulerOS-SA-2021-2062)
- 670449 EulerOS Security Update for kernel (EulerOS-SA-2021-2051)
- 750117 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1891-1)
- 750125 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1887-1)
- 750139 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1913-1)
- 750140 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1912-1)
- 750864 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:2421-1)
- 900096 CBL-Mariner Linux Security Update for kernel 5.10.52.1
- 900304 CBL-Mariner Linux Security Update for kernel 5.10.57.1
- 900319 CBL-Mariner Linux Security Update for kernel 5.10.60.1
- 901089 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (6530-1)
- 902857 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (4156)
- 905762 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (4156-1)
- 940265 AlmaLinux Security Update for kernel (ALSA-2021:4356)