CVE-2017-15132
HIGH severity · CVSS 7.5 · Uncontrolled resource consumption
7.5CVSS HIGH
Summary
A flaw was found in dovecot 2.0 up to 2.2.33 and 2.3.0. An abort of SASL authentication results in a memory leak in dovecot's auth client used by login processes. The leak has impact in high performance configuration where same login processes are reused and can cause the process to crash due to memory exhaustion.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)3%
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://bugzilla.redhat.com/show_bug.cgi?id=1532768 ↗
Additional information
- NVD record
- https://bugzilla.redhat.com/show_bug.cgi?id=1532768Patch
- https://github.com/dovecot/core/commit/1a29ed2f96da1be22fa5a4d96c7583aa81b8b060.patchPatch
- https://www.dovecot.org/list/dovecot-news/2018-February/000370.htmlAdvisory
- https://lists.debian.org/debian-lts-announce/2018/03/msg00036.htmlAdvisory
- https://usn.ubuntu.com/3556-1/Advisory
- https://usn.ubuntu.com/3556-2/Advisory
- https://www.debian.org/security/2018/dsa-4130Advisory