Out-of-bounds read in exim (Alpine package)
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-12783 |
| CWE-ID | CWE-125 |
| Exploitation vector | Network |
| Public exploit | N/A |
| 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) Out-of-bounds read
EUVDB-ID: #VU27959
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-12783
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 in the SPA authenticator within auths/spa.c and auths/auth-spa.c. A remote attacker can bypass SPA/NTLM authentication.
Install update from vendor's website.
Vulnerable software versionsexim (Alpine package): 4.80.1-r0 - 4.93-r1
External linkshttp://git.alpinelinux.org/aports/commit/?id=21bde86bd2793ea75fb3fe315996094eb8c36b82
http://git.alpinelinux.org/aports/commit/?id=6f89c26c7c10bb7f77e391510cc1d57f8881abbc
http://git.alpinelinux.org/aports/commit/?id=d2335b4e04dccdf04c50a64f5d284ca624f43782
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.
