CVE-2023-51594: bluez Out-of-bounds Read
Vulnerability summary
CVE-2023-51594 is a medium (CVSS 5.7) Out-of-bounds Read vulnerability in bluez. EPSS estimates a 1.08% chance of exploitation in the next 30 days, higher than 64.5% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 2Timeline
- 03-05-2024PublishedVulnerability first disclosed.
- 02-08-2024Last modifiedVulnerability information updated.
Description
BlueZ OBEX Library Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of BlueZ. User interaction is required to exploit this vulnerability in that the target must connect to a malicious Bluetooth device. The specific flaw exists within the handling of OBEX protocol parameters. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-20937.
CVSS metrics
6 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.7MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated5.7MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- OSV · UbuntuEcosystem advisory · calculated2.6LowCVSS:3.0/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
- NVDNIST2.6LowCVSS:3.0/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
EPSS trend
Probability
1.08%
Chance of exploitation in the next 30 days
Percentile
65%
Versus all other CVEs
30-day change
+0.13 pp
From 0.95% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Bluez1 product
- bluez5.66
Debian1 product
- bluezAll versions (No fix recorded)
Ubuntu1 product
- bluezAll versions (No fix recorded)
3 vendors · 3 products
