Latest medium severity vulnerabilities for "red hat enterprise linux for ibm z systems" 7.0

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redhat/sambaLast updated 24 July 2024

Risk 54

Severity

6.8

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

A flaw was found in the way samba implemented SMB1 authentication. An attacker could use this flaw to retrieve the plaintext password sent over the wire even if Kerberos authentication was required.

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Remedy

Ensure the following [global] smb.conf parameters are set to their default values as shown below: ~~~ client lanman auth = no client NTLMv2 auth = yes client plaintext auth = no client min protocol = SMB2_02 ~~~ Or use the '-k' command line option only without the -U option, which will make use of an existing krb5 ccache.

First published (updated )

CVE-2016-2124

Linux Linux kernelRace Condition, Use After Free, Double Free

Risk 33

Severity

5.5

Race Condition, Use After Free, Double Free

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

A use-after-free vulnerability was found in a network namespaces code affecting the Linux kernel since v4.0-rc1 through v4.15-rc5. The function getnetnsbyid() does not check for the net::count value after it has found a peer network in netnsids idr which could lead to double free and memory corruption. This vulnerability could allow an unprivileged local user to induce kernel memory corruption on the system, leading to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely.

References:

https://marc.info/?l=linux-netdev&m=151370451121029&w=2

https://marc.info/?t=151370468900001&r=1&w=2 (a whole thread)

http://seclists.org/oss-sec/2018/q1/7

An upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=21b5944350052d2583e82dd59b19a9ba94a007f0

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Source: Red Hat

First published (updated )

CVE-2017-15129

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