Bug 1928963 (CVE-2021-20247)
Summary: | CVE-2021-20247 isync/mbsync: mailbox names returned by IMAP LIST/LSUB not validated | ||
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Product: | [Other] Security Response | Reporter: | Pedro Sampaio <psampaio> |
Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
Status: | CLOSED UPSTREAM | QA Contact: | |
Severity: | medium | Docs Contact: | |
Priority: | medium | ||
Version: | unspecified | CC: | lkundrak, mail, security-response-team |
Target Milestone: | --- | Keywords: | Security |
Target Release: | --- | ||
Hardware: | All | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | mbsync 1.35, mbsync 1.4.1 | Doc Type: | If docs needed, set a value |
Doc Text: |
A flaw was found in mbsync. Validations of the mailbox names returned by IMAP LIST/LSUB do not occur allowing a malicious or compromised server to use specially crafted mailbox names containing '..' path components to access data outside the designated mailbox on the opposite end of the synchronization channel. The highest threat from this vulnerability is to data confidentiality and integrity.
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Story Points: | --- |
Clone Of: | Environment: | ||
Last Closed: | 2021-02-22 19:02:02 UTC | Type: | --- |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: | |||
Bug Depends On: | 1931597, 1931598 | ||
Bug Blocks: |
Description
Pedro Sampaio
2021-02-15 21:50:04 UTC
External References: https://www.openwall.com/lists/oss-security/2021/02/22/1 Created isync tracking bugs for this issue: Affects: epel-all [bug 1931598] Affects: fedora-all [bug 1931597] This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products. |