Bug 1778258 (CVE-2019-19270) - CVE-2019-19270 proftpd: failure to check for the appropriate field of a CRL entry prevents some valid CRLs from being taken into account
Summary: CVE-2019-19270 proftpd: failure to check for the appropriate field of a CRL e...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2019-19270
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1778260 1778261
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-11-29 16:22 UTC by Guilherme de Almeida Suckevicz
Modified: 2019-11-29 19:04 UTC (History)
4 users (show)

Fixed In Version:
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Last Closed: 2019-11-29 19:04:54 UTC
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Description Guilherme de Almeida Suckevicz 2019-11-29 16:22:08 UTC 
An issue was discovered in tls_verify_crl in ProFTPD through 1.3.6b. Failure to check for the appropriate field of a CRL entry (checking twice for subject, rather than once for subject and once for issuer) prevents some valid CRLs from being taken into account, and can allow clients whose certificates have been revoked to proceed with a connection to the server.

Reference:
https://github.com/proftpd/proftpd/issues/859
Comment 1 Guilherme de Almeida Suckevicz 2019-11-29 16:24:16 UTC 
Created proftpd tracking bugs for this issue:

Affects: epel-all [bug 1778261]
Affects: fedora-all [bug 1778260]
Comment 2 Product Security DevOps Team 2019-11-29 19:04:54 UTC 
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.
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