CVE-2018-14633
Summary
| CVE | CVE-2018-14633 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2018-09-25 00:29:00 UTC |
| Updated | 2023-02-14 21:13:00 UTC |
| Description | A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in the Linux kernel in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. The attack requires the iSCSI target to be enabled on the victim host. Depending on how the target's code was built (i.e. depending on a compiler, compile flags and hardware architecture) an attack may lead to a system crash and thus to a denial-of-service or possibly to a non-authorized access to data exported by an iSCSI target. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is highly unlikely. Kernel versions 4.18.x, 4.14.x and 3.10.x are believed to be vulnerable. |
Risk And Classification
Problem Types: CWE-121
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Canonical | Ubuntu Linux | 12.04 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 14.04 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 16.04 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 18.04 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 12.04 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 14.04 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 16.04 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 18.04 | All | All | All |
| Operating System | Debian | Debian Linux | 8.0 | All | All | All |
| Operating System | Debian | Debian Linux | 9.0 | All | All | All |
| Operating System | Debian | Debian Linux | 8.0 | All | All | All |
| Operating System | Debian | Debian Linux | 9.0 | All | All | All |
| Operating System | Linux | Linux Kernel | All | All | All | All |
| Operating System | Linux | Linux Kernel | All | All | All | All |
| Operating System | Linux | Linux Kernel | All | All | All | All |
| Operating System | Linux | Linux Kernel | All | All | All | All |
| Operating System | Redhat | Enterprise Linux Eus | 7.4 | All | All | All |
| Operating System | Redhat | Enterprise Linux Eus | 7.6 | All | All | All |
| Operating System | Redhat | Enterprise Linux Eus | 7.4 | All | All | All |
| Operating System | Redhat | Enterprise Linux Eus | 7.6 | All | All | All |
| Operating System | Redhat | Enterprise Linux Server | 7.0 | All | All | All |
| Operating System | Redhat | Enterprise Linux Server | 7.0 | All | All | All |
| Operating System | Redhat | Enterprise Linux Server Aus | 7.4 | All | All | All |
| Operating System | Redhat | Enterprise Linux Server Aus | 7.6 | All | All | All |
| Operating System | Redhat | Enterprise Linux Server Aus | 7.4 | All | All | All |
| Operating System | Redhat | Enterprise Linux Server Aus | 7.6 | All | All | All |
| Operating System | Redhat | Enterprise Linux Server Tus | 7.4 | All | All | All |
| Operating System | Redhat | Enterprise Linux Server Tus | 7.6 | All | All | All |
| Operating System | Redhat | Enterprise Linux Server Tus | 7.4 | All | All | All |
| Operating System | Redhat | Enterprise Linux Server Tus | 7.6 | All | All | All |
| Operating System | Redhat | Enterprise Linux Workstation | 7.0 | All | All | All |
| Operating System | Redhat | Enterprise Linux Workstation | 7.0 | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| [SECURITY] [DLA 1531-1] linux-4.9 security update | MLIST | lists.debian.org | Mailing List, Third Party Advisory |
| Linux Kernel 'chap_server_compute_md5()' Function Stack Buffer Overflow Vulnerability | BID | www.securityfocus.com | Third Party Advisory, VDB Entry |
| Red Hat Customer Portal | REDHAT | access.redhat.com | Third Party Advisory |
| 1626035 – (CVE-2018-14633) CVE-2018-14633 kernel: stack-based buffer overflow in chap_server_compute_md5() in iscsi target | MISC | bugzilla.redhat.com | |
| CVE-2018-14633 - Red Hat Customer Portal | MISC | access.redhat.com | |
| USN-3776-2: Linux kernel (Xenial HWE) vulnerabilities | Ubuntu security notices | UBUNTU | usn.ubuntu.com | Third Party Advisory |
| Red Hat Customer Portal | REDHAT | access.redhat.com | Third Party Advisory |
| USN-3776-1: Linux kernel vulnerabilities | Ubuntu security notices | UBUNTU | usn.ubuntu.com | Third Party Advisory |
| USN-3777-3: Linux kernel (Azure) vulnerabilities | Ubuntu security notices | UBUNTU | usn.ubuntu.com | Third Party Advisory |
| Red Hat Customer Portal | REDHAT | access.redhat.com | Third Party Advisory |
| USN-3775-1: Linux kernel vulnerabilities | Ubuntu security notices | UBUNTU | usn.ubuntu.com | Third Party Advisory |
| 1626035 – (CVE-2018-14633) CVE-2018-14633 kernel: stack-based buffer overflow in chap_server_compute_md5() in iscsi target | CONFIRM | bugzilla.redhat.com | Issue Tracking, Patch, Third Party Advisory |
| USN-3779-1: Linux kernel vulnerabilities | Ubuntu security notices | UBUNTU | usn.ubuntu.com | Third Party Advisory |
| USN-3777-2: Linux kernel (HWE) vulnerabilities | Ubuntu security notices | UBUNTU | usn.ubuntu.com | Third Party Advisory |
| kernel/git/mkp/scsi.git - SCSI | CONFIRM | git.kernel.org | Patch, Vendor Advisory |
| USN-3777-1: Linux kernel vulnerabilities | Ubuntu security notices | UBUNTU | usn.ubuntu.com | Third Party Advisory |
| kernel/git/mkp/scsi.git - SCSI | CONFIRM | git.kernel.org | Patch, Vendor Advisory |
| USN-3775-2: Linux kernel (Trusty HWE) vulnerabilities | Ubuntu security notices | UBUNTU | usn.ubuntu.com | Third Party Advisory |
| Debian -- Security Information -- DSA-4308-1 linux | DEBIAN | www.debian.org | Third Party Advisory |
| oss-sec: CVE-2018-14633: Linux kernel: security flaw in iscsi target code | MISC | seclists.org | Mailing List, Third Party Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.