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posted by martyb on Friday January 11 2019, @12:54PM   Printer-friendly
from the deep-seated-insecurities-and-paranoia dept.

From TFA (the friendly article) at https://www.openwall.com/lists/oss-security/2019/01/09/3:

We discovered three vulnerabilities in systemd-journald (https://en.wikipedia.org/wiki/Systemd):

- CVE-2018-16864 and CVE-2018-16865, two memory corruptions     (attacker-controlled alloca()s);

- CVE-2018-16866, an information leak (an out-of-bounds read).

CVE-2018-16864 was introduced in April 2013 (systemd v203) and became exploitable in February 2016 (systemd v230). We developed a proof of concept for CVE-2018-16864 that gains eip control on i386.

CVE-2018-16865 was introduced in December 2011 (systemd v38) and became exploitable in April 2013 (systemd v201). CVE-2018-16866 was introduced in June 2015 (systemd v221) and was inadvertently fixed in August 2018.

We developed an exploit for CVE-2018-16865 and CVE-2018-16866 that obtains a local root shell in 10 minutes on i386 and 70 minutes on amd64, on average. We will publish our exploit in the near future.

To the best of our knowledge, all systemd-based Linux distributions are vulnerable, but SUSE Linux Enterprise 15, openSUSE Leap 15.0, and Fedora 28 and 29 are not exploitable because their user space is compiled with GCC's -fstack-clash-protection.

This confirms https://grsecurity.net/an_ancient_kernel_hole_is_not_closed.php: "It should be clear that kernel-only attempts to solve [the Stack Clash] will necessarily always be incomplete, as the real issue lies in the lack of stack probing."

The article goes on with more detailed information on exploits.

<sarcasm>It's a good thing that systemd does not affect very many systems and no systems running anything important.</sarcasm>


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  • (Score: 2, Insightful) by Anonymous Coward on Friday January 11 2019, @01:25PM (11 children)

    by Anonymous Coward on Friday January 11 2019, @01:25PM (#785016)

    Don't use any distro that fell for the systemd propaganda.

    Use Slackware instead.

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  • (Score: 1, Informative) by Anonymous Coward on Friday January 11 2019, @02:20PM (4 children)

    by Anonymous Coward on Friday January 11 2019, @02:20PM (#785029)

    Void Linux is another good one.

    For crazy people (like me) there is also Gentoo and Exherbo. I think Exherbo was systemd by default, but when building an Exherbo system, it's trivial to change to OpenRC.

    • (Score: -1, Troll) by Ethanol-fueled on Friday January 11 2019, @03:53PM (1 child)

      by Ethanol-fueled (2792) on Friday January 11 2019, @03:53PM (#785073) Homepage

      You sound like a nigger. Yes, niggers. And you will not speak against the niggers, for the niggers are of our people. "Hey, you...yes, you, what the fuck you starin' at, White boy?!"

      Yes, the niggers.

      • (Score: 0) by Anonymous Coward on Saturday January 12 2019, @11:43AM

        by Anonymous Coward on Saturday January 12 2019, @11:43AM (#785466)

        Okay, curious, where's the nigger reference in there?

    • (Score: 1, Interesting) by Anonymous Coward on Friday January 11 2019, @04:05PM (1 child)

      by Anonymous Coward on Friday January 11 2019, @04:05PM (#785079)

      I second VOID. This distro is quite solid. Though it is rolling release, which means you have to be careful about driver configuration, which can sometimes collide on new releases.

      • (Score: -1, Troll) by Anonymous Coward on Saturday January 12 2019, @11:45AM

        by Anonymous Coward on Saturday January 12 2019, @11:45AM (#785467)

        "collide [duckduckgo.com]"?!?!? that doesn't sound good!

  • (Score: 5, Insightful) by cosurgi on Friday January 11 2019, @04:48PM

    by cosurgi (272) on Friday January 11 2019, @04:48PM (#785105) Journal

    I prefer devuan :)

    --
    #
    #\ @ ? [adom.de] Colonize Mars [kozicki.pl]
    #
  • (Score: 2) by Freeman on Friday January 11 2019, @04:59PM

    by Freeman (732) on Friday January 11 2019, @04:59PM (#785118) Journal

    There's also MX Linux. https://distrowatch.com/table.php?distribution=mx [distrowatch.com] Which is pretty popular on distrowatch. That may not be a great metric to go by, but it's something.

    --
    Joshua 1:9 "Be strong and of a good courage; be not afraid, neither be thou dismayed: for the Lord thy God is with thee"
  • (Score: 2) by Magic Oddball on Saturday January 12 2019, @04:00AM

    by Magic Oddball (3847) on Saturday January 12 2019, @04:00AM (#785382) Journal

    Or for those of us who prefer a more user-friendly/out-of-the-box distro with a big repo, PCLinuxOS.

  • (Score: 2) by turgid on Saturday January 12 2019, @03:24PM

    by turgid (4318) Subscriber Badge on Saturday January 12 2019, @03:24PM (#785533) Journal
  • (Score: 2) by DeVilla on Saturday January 12 2019, @05:38PM (1 child)

    by DeVilla (5354) on Saturday January 12 2019, @05:38PM (#785591)

    Dear lazy web, is Gentoo still a decent desktop without systemd?

    • (Score: 0) by Anonymous Coward on Thursday January 17 2019, @05:01AM

      by Anonymous Coward on Thursday January 17 2019, @05:01AM (#787787)

      Supposedly so. But chatter on their forum suggests the person currently in charge of OpenRC maintenance is running a false flag operation has he keeps introduced systemd-isms into OpenRC.