Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2019-19906 |
CWE-ID | CWE-787 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
cyrus-sasl (Alpine package) Operating systems & Components / Operating system package or component |
Vendor | Alpine Linux Development Team |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU23796
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-19906
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds write error when processing LDAP queries within the _sasl_add_string() function in common.c file in cyrus-sasl. A remote non-authenticated attacker can create a specially LDAP request to the affected server, trigger off-by-one error in OpenLDAP implementation and crash the service.
MitigationInstall update from vendor's website.
Vulnerable software versionscyrus-sasl (Alpine package): 2.1.26-r14
External linkshttp://git.alpinelinux.org/aports/commit/?id=0595a8cfd177012e492000c76033a8a089b51270
http://git.alpinelinux.org/aports/commit/?id=320e9fe25de21594bb1ef20b31586ec775ab1758
http://git.alpinelinux.org/aports/commit/?id=336ed678178032d07a97fee172237315410e8d3c
http://git.alpinelinux.org/aports/commit/?id=ae0d0538a6d887aa919e257b5d2e386000418efa
http://git.alpinelinux.org/aports/commit/?id=e20d740be6dacfa112b97d79489bcf960eb2c7f8
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.