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Bug 792576 (CVE-2020-14387) - <net-misc/rsync-3.2.3-r5: improper TLS validation in rsync-ssl script (CVE-2020-14387)
Summary: <net-misc/rsync-3.2.3-r5: improper TLS validation in rsync-ssl script (CVE-20...
Alias: CVE-2020-14387
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Gentoo Security
Whiteboard: A3 [glsa? cleanup]
Keywords: PullRequest
Depends on: 827218
  Show dependency tree
Reported: 2021-05-28 03:00 UTC by Sam James
Modified: 2021-11-26 05:08 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---


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Description Sam James archtester Gentoo Infrastructure gentoo-dev Security 2021-05-28 03:00:43 UTC
"A flaw was found in rsync in versions since 3.2.0pre1. Rsync improperly validates certificate with host mismatch vulnerability. A remote, unauthenticated attacker could exploit the flaw by performing a man-in-the-middle attack using a valid certificate for another hostname which could compromise confidentiality and integrity of data transmitted using rsync-ssl. The highest threat from this vulnerability is to data confidentiality and integrity. This flaw affects rsync versions before 3.2.4."
Comment 1 Sam James archtester Gentoo Infrastructure gentoo-dev Security 2021-05-28 03:03:44 UTC
Comment 2 NATTkA bot gentoo-dev 2021-07-29 17:22:04 UTC Comment hidden (obsolete)
Comment 3 NATTkA bot gentoo-dev 2021-07-29 17:30:16 UTC Comment hidden (obsolete)
Comment 4 NATTkA bot gentoo-dev 2021-07-29 17:38:13 UTC Comment hidden (obsolete)
Comment 5 NATTkA bot gentoo-dev 2021-07-29 17:46:21 UTC Comment hidden (obsolete)
Comment 6 NATTkA bot gentoo-dev 2021-07-29 18:02:19 UTC Comment hidden (obsolete)
Comment 7 NATTkA bot gentoo-dev 2021-07-29 18:10:37 UTC
Package list is empty or all packages have requested keywords.
Comment 8 Larry the Git Cow gentoo-dev 2021-11-18 02:31:01 UTC
The bug has been referenced in the following commit(s):

commit 029532544d5edfe5fc70413a827831932e3c0b21
Author:     Varsha Teratipally <>
AuthorDate: 2021-11-17 17:30:16 +0000
Commit:     Sam James <>
CommitDate: 2021-11-18 02:30:46 +0000

    net-misc/rsync: fix CVE-2020-14387
    Signed-off-by: Varsha Teratipally <>
    Signed-off-by: Sam James <>

 .../files/rsync-3.2.3-verify-certificate.patch     |  26 +++++
 net-misc/rsync/rsync-3.2.3-r5.ebuild               | 124 +++++++++++++++++++++
 2 files changed, 150 insertions(+)
Comment 9 John Helmert III archtester Gentoo Infrastructure gentoo-dev Security 2021-11-26 05:08:32 UTC
Please cleanup