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Bug 813282 (CVE-2021-41387) - <sys-auth/seatd-0.6.2: Vulnerability in seatd-launch executable
Summary: <sys-auth/seatd-0.6.2: Vulnerability in seatd-launch executable
Status: RESOLVED FIXED
Alias: CVE-2021-41387
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal trivial
Assignee: Gentoo Security
URL: https://lists.sr.ht/~kennylevinsen/se...
Whiteboard: ~1 [noglsa]
Keywords: PullRequest
Depends on:
Blocks:
 
Reported: 2021-09-16 06:45 UTC by Haelwenn (lanodan) Monnier
Modified: 2021-09-18 00:34 UTC (History)
3 users (show)

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

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Description Haelwenn (lanodan) Monnier 2021-09-16 06:45:54 UTC 
> A user could manipulate the PATH environment variable to cause
> seatd-launch to load a different executable than seatd. If seatd-launch
> had the SUID bit set and was owned by a privileged user, this could be
> used to mount a privilege escalation attack.

Only 0.6.0 and 0.6.1 (not in gentoo) are vulnerable, it is fixed in 0.6.2.
Comment 1 Larry the Git Cow gentoo-dev 2021-09-17 01:52:56 UTC 
The bug has been referenced in the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=1084ca6540f023f71ec0610e893137e829bb74c2

commit 1084ca6540f023f71ec0610e893137e829bb74c2
Author:     Haelwenn (lanodan) Monnier <contact@hacktivis.me>
AuthorDate: 2021-09-16 06:48:03 +0000
Commit:     Ionen Wolkens <ionen@gentoo.org>
CommitDate: 2021-09-17 01:52:20 +0000

    sys-auth/seatd: Security cleanup, 0.6.0
    
    Bug: https://bugs.gentoo.org/813282
    Signed-off-by: Haelwenn (lanodan) Monnier <contact@hacktivis.me>
    Closes: https://github.com/gentoo/gentoo/pull/22305
    Signed-off-by: Ionen Wolkens <ionen@gentoo.org>

 sys-auth/seatd/Manifest              |  1 -
 sys-auth/seatd/seatd-0.6.0-r1.ebuild | 55 ------------------------------------
 2 files changed, 56 deletions(-)

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=176ce89284de2a37bbb373e07a2c617d0f17117b

commit 176ce89284de2a37bbb373e07a2c617d0f17117b
Author:     Haelwenn (lanodan) Monnier <contact@hacktivis.me>
AuthorDate: 2021-09-16 06:47:30 +0000
Commit:     Ionen Wolkens <ionen@gentoo.org>
CommitDate: 2021-09-17 01:52:20 +0000

    sys-auth/seatd: Version bump, 0.6.2
    
    Bug: https://bugs.gentoo.org/813282
    Signed-off-by: Haelwenn (lanodan) Monnier <contact@hacktivis.me>
    Signed-off-by: Ionen Wolkens <ionen@gentoo.org>

 sys-auth/seatd/Manifest           |  1 +
 sys-auth/seatd/seatd-0.6.2.ebuild | 55 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 56 insertions(+)
Comment 2 John Helmert III archtester Gentoo Infrastructure gentoo-dev Security 2021-09-17 01:55:27 UTC 
Please file a stablereq when ready!
Comment 3 Haelwenn (lanodan) Monnier 2021-09-17 02:06:38 UTC 
(In reply to John Helmert III from comment #2)
> Please file a stablereq when ready!

Erm sure but seatd-0.6.0 wasn't stabilized?
Comment 4 Ionen Wolkens gentoo-dev 2021-09-17 02:07:41 UTC 
I think there's just confusion, 0.5.0 is not affected so the stablereq isn't necessary here.

This affects seatd-launch which doesn't exist prior to 0.6.0
Comment 5 John Helmert III archtester Gentoo Infrastructure gentoo-dev Security 2021-09-17 02:27:10 UTC 
Ah, yes, if only unstable versions were affected we don't need to do anything further. All done!