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Bug 775365 (CVE-2021-21381, GHSA-xgh4-387p-hqpp) - sys-apps/flatpak: Sandbox break (CVE-2021-21381)
Summary: sys-apps/flatpak: Sandbox break (CVE-2021-21381)
Alias: CVE-2021-21381, GHSA-xgh4-387p-hqpp
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal minor (vote)
Assignee: Gentoo Security
Whiteboard: B3 [ebuild]
Depends on:
Reported: 2021-03-11 06:54 UTC by Sam James
Modified: 2021-03-12 13:57 UTC (History)
1 user (show)

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


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Description Sam James archtester gentoo-dev Security 2021-03-11 06:54:33 UTC
"flatpak since 0.9.4 has a vulnerability in the "file forwarding" feature which can be used by an attacker to gain access to files that would not ordinarily be allowed by the app's permissions."

Please bump to 1.10.2.
Comment 1 Larry the Git Cow gentoo-dev 2021-03-11 07:11:35 UTC
The bug has been referenced in the following commit(s):

commit f1015a3fd27008c326e7bd12b5f754ed663b6fdd
Author:     Zac Medico <>
AuthorDate: 2021-03-11 07:10:50 +0000
Commit:     Zac Medico <>
CommitDate: 2021-03-11 07:10:59 +0000

    sys-apps/flatpak: Bump to version 1.10.2
    Package-Manager: Portage-3.0.17, Repoman-3.0.2
    Signed-off-by: Zac Medico <>

 sys-apps/flatpak/Manifest              |   1 +
 sys-apps/flatpak/flatpak-1.10.2.ebuild | 101 +++++++++++++++++++++++++++++++++
 2 files changed, 102 insertions(+)