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Bug 1623184 - (CVE-2018-15919) CVE-2018-15919 openssh: User enumeration via malformed packets in authentication requests
CVE-2018-15919 openssh: User enumeration via malformed packets in authenticat...
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
impact=low,public=20180828,reported=2...
: Security
Depends On: 1623185 1623186
Blocks: 1623187
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Reported: 2018-08-28 12:38 EDT by Laura Pardo
Modified: 2018-10-24 04:47 EDT (History)
30 users (show)

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Description Laura Pardo 2018-08-28 12:38:05 EDT 
A flaw was found in OpenSSH versions from 5.9 (September 6, 2011) to the recently released 7.8 (August 24, 2018), inclusive. A remotely observable behaviour in auth-gss2.c could be used by remote attackers to detect existence of users on a target system when GSS2 is in use. Similar to CVE-2018-15473 (it is not a timing attack)


References:
http://seclists.org/oss-sec/2018/q3/180
Comment 1 Laura Pardo 2018-08-28 12:38:48 EDT 
Created openssh tracking bugs for this issue:

Affects: fedora-all [bug 1623185]
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