Information disclosure in BlueZ
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-3588 |
| CWE-ID | CWE-125 |
| Exploitation vector | Local network |
| Public exploit | N/A |
| Vulnerable software |
BlueZ Universal components / Libraries / Libraries used by multiple products |
| Vendor | BlueZ Project |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Out-of-bounds read
EUVDB-ID: #VU67751
Risk: Low
CVSSv4.0: 1.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-3588
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the cli_feat_read_cb() function in src/gatt-database.c. A remote attacker on the local network can trigger an out-of-bounds read error and read contents of memory on the system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsBlueZ: 5.0 - 5.55
CPE2.3- cpe:2.3:a:bluez.org:bluez:5.0:*:*:*:*:*:*:*
- cpe:2.3:a:bluez.org:bluez:5.1:*:*:*:*:*:*:*
- cpe:2.3:a:bluez.org:bluez:5.2:*:*:*:*:*:*:*
https://github.com/bluez/bluez/issues/70
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
