SB2018030518 - Out-of-bounds read in dovecot (Alpine package)

Description

This security bulletin contains information about 1 vulnerability.

1) Out-of-bounds read (CVE-ID: CVE-2017-14461)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote authenticated attacker to obtain potentially sensitive information or cause DoS condition on the target system.

The weakness exists due to improper parsing of crafted email messages. A remote attacker can send a specially crafted email message over SMTP, trick the victim into opening it, trigger an out-of-bounds read and gain access to potentially sensitive information or cause the service to crash.

Remediation

Install update from vendor's website.

References

• https://git.alpinelinux.org/aports/commit/?id=5725c3c222d375b3272cdc3c99476cc274e0ddc9
• https://git.alpinelinux.org/aports/commit/?id=c98b313e7d98a22a3dd4c5c2e7f5bfe2d2415977
• https://git.alpinelinux.org/aports/commit/?id=2e4b8b5d4343b5c1b09013d891c93e717041f324
• https://git.alpinelinux.org/aports/commit/?id=44ec7e4406170dec0bcab3fc699115efa72fb094