Results 1 to 3 of 3

Thread: libc6 flaw worry

  1. #1
    Senior Member registered user
    Join Date
    May 2006
    Location
    Columbia, Maryland USA
    Posts
    1,631

    libc6 flaw worry

    .
    I expressed my concern about the following news item to Klaus K:
    http://www.eweek.com/security/linux-...libc-flaw.html

    His comment on this was the following:
    Me too, since all glibc >= 2.9 versions till today are affected, with
    the glibc on Knoppix being no exception.

    For exploiting the vulnerability, the attacker must own the directly
    queried DNS server (i.e. the users access point, or the ISPs DNS server)
    and send manipulated DNS replies from there, or be able to hijack TCP
    connections, and in most cases, programs will just crash on the
    getaddrinfo() library call, but code injection on the stack may be
    possible. Though an attack isn't really easy, it's a real possibility.

    The easy commandline method (for USB flash disk users) for fixing the
    problem, thanks to debian's quick reaction in the unstable branch, would be:

    sudo apt-get update ; sudo apt-get install -t unstable libc6
    which also updates libc6 dependencies.
    I did this on my Knoppix 7.6.1 LiveUSB, and it updated my libc6 to 2.21.0,
    and didn't take up much space on my reiserfs persistence.

    IMO, it may be wise to make this interim correction, since updating the
    whole 4Gb Knoppix iso might not happen right away.

  2. #2
    Senior Member registered user
    Join Date
    May 2006
    Location
    Columbia, Maryland USA
    Posts
    1,631
    Should read updated to libc6 2.21-9, not 2.21.0.
    Last edited by utu; 02-23-2016 at 01:33 AM.

  3. #3
    Senior Member registered user
    Join Date
    May 2006
    Location
    Columbia, Maryland USA
    Posts
    1,631

    A reminder, in case you are not using 7.7.0.

    Regarding libc6...

    http://www.linux-magazine.com/Issues/2016/187/Ask-Klaus

    You don't need to buy the article, just see the first post here.
    Last edited by utu; 05-13-2016 at 06:07 PM.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


Dell PowerEdge R640 NVMe Server 2.10Ghz 8-Core 96GB 10x 1.6TB NVMe SSD HBA330 picture

Dell PowerEdge R640 NVMe Server 2.10Ghz 8-Core 96GB 10x 1.6TB NVMe SSD HBA330

$3133.65



Dell Desktop Computer 16GB RAM 512GB SSD Intel Core i5 8th Gen. Windows 11 Pro picture

Dell Desktop Computer 16GB RAM 512GB SSD Intel Core i5 8th Gen. Windows 11 Pro

$250.00



Intel - Core i7-13700K 13th Gen 16 cores 8 P-cores + 8 E-cores 30M Cache, 3.4... picture

Intel - Core i7-13700K 13th Gen 16 cores 8 P-cores + 8 E-cores 30M Cache, 3.4...

$364.99



Intel - Core i9-13900K 13th Gen 24 cores 8 P-cores + 16 E-cores 36M Cache, 3 ... picture

Intel - Core i9-13900K 13th Gen 24 cores 8 P-cores + 16 E-cores 36M Cache, 3 ...

$519.99



Intel - Core i9-12900K Desktop Processor 16 (8P+8E) Cores up to 5.2 GHz Unloc... picture

Intel - Core i9-12900K Desktop Processor 16 (8P+8E) Cores up to 5.2 GHz Unloc...

$331.99



Intel - Core i7-12700K Desktop Processor 12 (8P+4E) Cores up to 5.0 GHz Unloc... picture

Intel - Core i7-12700K Desktop Processor 12 (8P+4E) Cores up to 5.0 GHz Unloc...

$242.99



Intel Xeon E5-2667 V2 LGA 2011 3.3GHz 8 Core 130W 25MB 8GT/s CPU Processor picture

Intel Xeon E5-2667 V2 LGA 2011 3.3GHz 8 Core 130W 25MB 8GT/s CPU Processor

$24.00



AMD Ryzen™ 7 5700X 8-Core, 16-Thread Unlocked Desktop Processor picture

AMD Ryzen™ 7 5700X 8-Core, 16-Thread Unlocked Desktop Processor

$169.99



HP Z820 8-Core 2.60GHz E5-2670 128GB RAM No HDD No OS picture

HP Z820 8-Core 2.60GHz E5-2670 128GB RAM No HDD No OS

$214.82



HP Custom Tower Computer- Up to 32GB RAM 1TB SSD Quad Core AMD Windows PC picture

HP Custom Tower Computer- Up to 32GB RAM 1TB SSD Quad Core AMD Windows PC

$224.99