Ceph
CVE-2020-12059
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A10:2025 - Mishandling of Exceptional Conditions
ASVS 5.0
V16 - Security Logging and Error Handling Null pointer safety, defensive checks
MITRE ATT&CK
1 technique across 1 tactic: Impact The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. |
| Exploit ScenarioDerived | A remote attacker could crash the application by dereferencing a null pointer by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAI
An issue was discovered in Ceph through 13.2.9. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This NULL Pointer Dereference vulnerability could allow attackers to crash the application by dereferencing a null pointer.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Check pointers before dereferencing. Use static analysis tools to detect null pointer paths.
Affects your stack
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Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as NULL Pointer Dereference (CWE-476), which allows attackers to crash the application by dereferencing a null pointer. An issue was discovered in Ceph through 13.2.9. A POST request with an invalid tagging XML can crash the RGW process by triggering a NULL pointer exception. Affected products include: Linuxfoundation Ceph, Canonical Ubuntu Linux. Version information: through 13.2.9..
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
An issue was discovered in Ceph through 13.2.9. A POST request with an invalid tagging XML can crash the RGW process by triggering a NULL pointer exception.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
A null pointer dereference occurs when a program attempts to access memory through a pointer that has been set to NULL (address 0x0).
Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.
Affected Products (CPE)NVD
The RGW code in Ceph before 10.0.1, when authenticated-read ACL is applied to a bucket, allows remote attackers to list
A kernel crash (oops) in the CephFS client can be triggered when the fscrypt filename-decryption path hands vmalloc()-ba
A use-after-free race in the Linux kernel CephFS client allows a local process to crash the kernel while opening a file
A flaw was found in Openstack manilla owning a Ceph File system "share", which enables the owner to read/write any manil
A flaw was found in the Cephx authentication protocol in versions before 15.2.6 and before 14.2.14, where it does not ve
A flaw was found in the way ceph mon handles user requests. Rated high severity (CVSS 8.1), this vulnerability is remote
An authorization bypass vulnerability was found in Ceph versions 15.2.0 before 15.2.2, where the ceph-mon and ceph-mgr d
It was found that cephx authentication protocol did not verify ceph clients correctly and was vulnerable to replay attac
A path traversal flaw was found in the Ceph dashboard implemented in upstream versions v14.2.5, v14.2.6, v15.0.0 of Ceph
A flaw was found in the Ceph RGW configuration with Beast as the front end handling client requests. Rated high severity
A flaw was found in the way civetweb frontend was handling requests for ceph RGW server with SSL enabled. Rated high sev
In Ceph before 12.2.3 and 13.x through 13.0.1, the rgw_civetweb.cc RGWCivetWeb::init_env function in radosgw doesn't han
GitHub PoC
Exploit-DB