CVE-2021-40110
In Apache James, using Jazzer fuzzer, we identified that an IMAP user can craft IMAP LIST commands to orchestrate a Denial Of Service using a vulnerable Regular expression.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.86%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In Apache James, using Jazzer fuzzer, we identified that an IMAP user can craft IMAP LIST commands to orchestrate a Denial Of Service using a vulnerable Regular expression. This affected Apache James prior to 3.6.1 We recommend upgrading to Apache James 3.6.1 or higher , which enforce the use of RE2J regular expression engine to execute regex in linear time without back-tracking.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.86% probability · 86th percentile
- CISA KEV
- Not listed
- Affected
- apache/james
- Source
- security@apache.org
References
- http://www.openwall.com/lists/oss-security/2022/01/04/2Mailing List, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2022/01/04/2Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/01/04/2Mailing List, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2022/01/04/2Mailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.