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Bug 1639109 - (CVE-2018-17846) CVE-2018-17846 golang-org-x-net-html: infinite loop during html.Parse() via inSelectIM and inSelectInTableIM
CVE-2018-17846 golang-org-x-net-html: infinite loop during html.Parse() via i...
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20181001,repor...
: Security
Depends On: 1639110 1639111 1639112 1639114 1639115 1639113
Blocks: 1633033
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Reported: 2018-10-15 02:07 EDT by Sam Fowler
Modified: 2018-10-30 00:38 EDT (History)
47 users (show)

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Description Sam Fowler 2018-10-15 02:07:12 EDT 
The html package (aka x/net/html) through 2018-09-25 in Go mishandles <table><math><select><mi><select></table>, leading to an infinite loop during an html.Parse call because inSelectIM and inSelectInTableIM do not comply with a specification.


Upstream Issue:

https://github.com/golang/go/issues/27842
Comment 1 Sam Fowler 2018-10-15 02:08:17 EDT 
Created golang-googlecode-net tracking bugs for this issue:

Affects: epel-6 [bug 1639115]
Affects: fedora-all [bug 1639114]


Created heketi tracking bugs for this issue:

Affects: epel-6 [bug 1639113]
Affects: fedora-all [bug 1639112]


Created kompose tracking bugs for this issue:

Affects: fedora-all [bug 1639111]


Created origin tracking bugs for this issue:

Affects: fedora-all [bug 1639110]
Comment 2 Scott Gayou 2018-10-16 17:48:49 EDT 
Potential Upstream Fix:

https://go-review.googlesource.com/c/net/+/137275

While the patch does look applicable, I am unable to reproduce this on RHEL.

time ./poc

real	0m0.007s
user	0m0.002s
sys	0m0.005s
Comment 3 Summer Long 2018-10-30 00:38:00 EDT 
OpenStack OpTools 8 and 9 grafana versions do not include net/html, which has the flawed code, setting these to NotAffected.
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