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Bug 803041 (CVE-2021-33910) - <sys-apps/systemd-{248.5, 249.1}: Denial of service (stack exhaustion) in systemd (PID 1) (CVE-2021-33910)
Summary: <sys-apps/systemd-{248.5, 249.1}: Denial of service (stack exhaustion) in sys...
Status: RESOLVED FIXED
Alias: CVE-2021-33910
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal major (vote)
Assignee: Gentoo Security
URL: https://www.openwall.com/lists/oss-se...
Whiteboard: A3 [glsa+ cve]
Keywords:
Depends on:
Blocks: CVE-2020-13529
  Show dependency tree
 
Reported: 2021-07-20 13:03 UTC by 0xC0ncord
Modified: 2021-07-20 19:22 UTC (History)
1 user (show)

See Also:
Package list:
sys-apps/systemd-248.5
Runtime testing required: ---
nattka: sanity-check+


Attachments

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Description 0xC0ncord 2021-07-20 13:03:11 UTC
A stack exhaustion vulnerability was found in systemd that allows a local attacker crash to systemd (PID 1) and therefore crash the entire operating system (a kernel panic)

https://www.openwall.com/lists/oss-security/2021/07/20/2

Upstream commit: https://github.com/systemd/systemd/pull/20256/commits/441e0115646d54f080e5c3bb0ba477c892861ab9
Comment 1 Sam James archtester gentoo-dev Security 2021-07-20 14:07:17 UTC
Fixed in https://github.com/systemd/systemd-stable/releases/tag/v249.1.
Comment 2 Sam James archtester gentoo-dev Security 2021-07-20 14:11:00 UTC
(In reply to Sam James from comment #1)
> Fixed in https://github.com/systemd/systemd-stable/releases/tag/v249.1.

(and 248.5)
Comment 3 Larry the Git Cow gentoo-dev 2021-07-20 15:50:19 UTC
The bug has been referenced in the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=ff18c8e63c649d4e2dd4d7b195ca4defd85aa19d

commit ff18c8e63c649d4e2dd4d7b195ca4defd85aa19d
Author:     Mike Gilbert <floppym@gentoo.org>
AuthorDate: 2021-07-20 15:48:36 +0000
Commit:     Mike Gilbert <floppym@gentoo.org>
CommitDate: 2021-07-20 15:48:36 +0000

    sys-apps/systemd: security bump to 248.5, 249.1
    
    Bug: https://bugs.gentoo.org/803041
    Signed-off-by: Mike Gilbert <floppym@gentoo.org>

 sys-apps/systemd/Manifest                          |   3 +-
 sys-apps/systemd/systemd-248.5.ebuild              | 523 +++++++++++++++++++++
 ...{systemd-249-r3.ebuild => systemd-249.1.ebuild} |   1 -
 3 files changed, 525 insertions(+), 2 deletions(-)
Comment 4 Sam James archtester gentoo-dev Security 2021-07-20 16:51:06 UTC
amd64 done
Comment 5 Sam James archtester gentoo-dev Security 2021-07-20 16:51:08 UTC
x86 done
Comment 6 Sam James archtester gentoo-dev Security 2021-07-20 18:32:51 UTC
ppc done
Comment 7 Sam James archtester gentoo-dev Security 2021-07-20 18:34:00 UTC
ppc64 done
Comment 8 Sam James archtester gentoo-dev Security 2021-07-20 18:35:39 UTC
sparc done
Comment 9 John Helmert III gentoo-dev Security 2021-07-20 18:35:42 UTC
GLSA request filed.
Comment 10 Sam James archtester gentoo-dev Security 2021-07-20 19:13:02 UTC
arm64 done
Comment 11 Sam James archtester gentoo-dev Security 2021-07-20 19:13:09 UTC
arm done

all arches done
Comment 12 Sam James archtester gentoo-dev Security 2021-07-20 19:14:00 UTC
Please cleanup, thanks!
Comment 13 Larry the Git Cow gentoo-dev 2021-07-20 19:19:58 UTC
The bug has been referenced in the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=45552ee6b4e67a0915e8064b00fe0feda67a87de

commit 45552ee6b4e67a0915e8064b00fe0feda67a87de
Author:     Mike Gilbert <floppym@gentoo.org>
AuthorDate: 2021-07-20 19:19:27 +0000
Commit:     Mike Gilbert <floppym@gentoo.org>
CommitDate: 2021-07-20 19:19:27 +0000

    sys-apps/systemd: drop 248.3-r1
    
    Bug: https://bugs.gentoo.org/803041
    Signed-off-by: Mike Gilbert <floppym@gentoo.org>

 sys-apps/systemd/Manifest                          |   1 -
 .../files/249-hostnamed-error-variable.patch       |  50 --
 sys-apps/systemd/files/gentoo-pam.patch            |  33 --
 sys-apps/systemd/systemd-248.3-r1.ebuild           | 520 ---------------------
 4 files changed, 604 deletions(-)
Comment 14 GLSAMaker/CVETool Bot gentoo-dev 2021-07-20 19:21:47 UTC
This issue was resolved and addressed in
 GLSA 202107-48 at https://security.gentoo.org/glsa/202107-48
by GLSA coordinator Sam James (sam_c).
Comment 15 Sam James archtester gentoo-dev Security 2021-07-20 19:22:15 UTC
All done.