libceph: just wait for more data to be available on the socket
Summary
| CVE | CVE-2023-52636 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2024-04-02 07:15:41 UTC |
| Updated | 2026-08-04 10:18:35 UTC |
| Description | In the Linux kernel, the following vulnerability has been resolved: libceph: just wait for more data to be available on the socket A short read may occur while reading the message footer from the socket. Later, when the socket is ready for another read, the messenger invokes all read_partial_*() handlers, including read_partial_sparse_msg_data(). The expectation is that read_partial_sparse_msg_data() would bail, allowing the messenger to invoke read_partial() for the footer and pick up where it left off. However read_partial_sparse_msg_data() violates that and ends up calling into the state machine in the OSD client. The sparse-read state machine assumes that it's a new op and interprets some piece of the footer as the sparse-read header and returns bogus extents/data length, etc. To determine whether read_partial_sparse_msg_data() should bail, let's reuse cursor->total_resid. Because once it reaches to zero that means all the extents and data have been successfully received in last read, else it could break out when partially reading any of the extents and data. And then osd_sparse_read() could continue where it left off. [ idryomov: changelog ] |
Risk And Classification
Primary CVSS: v3.1 5.5 MEDIUM from [email protected]
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Problem Types: NVD-CWE-noinfo
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 5.5 | MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| 3.1 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | Secondary | 8.2 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H |
| 3.1 | CNA | DECLARED | 8.2 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H |
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
NoneAvailability
NoneCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Linux | Linux Kernel | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected d396f89db39a2f259e2125ca43b4c31bb65afcad da9c33a70f095d5d55c36d0bfeba969e31de08ae git | Not specified |
| CNA | Linux | Linux | affected d396f89db39a2f259e2125ca43b4c31bb65afcad bd9442e553ab8bf74b8be3b3c0a43bf4af4dc9b8 git | Not specified |
| CNA | Linux | Linux | affected d396f89db39a2f259e2125ca43b4c31bb65afcad 8e46a2d068c92a905d01cbb018b00d66991585ab git | Not specified |
| CNA | Linux | Linux | affected 6.6 | Not specified |
| CNA | Linux | Linux | unaffected 6.6 semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.17 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.7.5 6.7.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.8 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/8e46a2d068c92a905d01cbb018b00d66991585ab | af854a3a-2127-422b-91ae-364da2661108 | git.kernel.org | Patch |
| git.kernel.org/stable/c/bd9442e553ab8bf74b8be3b3c0a43bf4af4dc9b8 | af854a3a-2127-422b-91ae-364da2661108 | git.kernel.org | Patch |
| git.kernel.org/stable/c/da9c33a70f095d5d55c36d0bfeba969e31de08ae | af854a3a-2127-422b-91ae-364da2661108 | git.kernel.org | Patch |
| 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.