Memory corruption in exim (Alpine package)
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2017-1000369 |
| CWE-ID | CWE-119 |
| Exploitation vector | Local |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
exim (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.
1) Memory corruption
EUVDB-ID: #VU7136
Risk: Medium
CVSSv3.1: 7.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2017-1000369
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
Description
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The vulnerability exists due to memory management errors in implementation of various functions under multiple operating systems. A local or remote attacker can overflow group_list[] buffer in Exim main() function to manipulate the heap/stack, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
MitigationInstall update from vendor's website.
Vulnerable software versionsexim (Alpine package): 4.80.1-r0 - 4.89-r4
External linkshttp://git.alpinelinux.org/aports/commit/?id=c6ea9f9f7a7f5f3a5007438e551d8d444e96d5d9
http://git.alpinelinux.org/aports/commit/?id=95006a5467833196e00029ed8c0109a2de756e8f
http://git.alpinelinux.org/aports/commit/?id=c36891f9148bb4566de67ddf7aec3b9b2c161201
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
