Bug 1466740 (CVE-2017-9228)
| Summary: | CVE-2017-9228 oniguruma: Out-of-bounds heap write in bitset_set_range() | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Adam Mariš <amaris> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | bkearney, cbillett, ccoleman, cpelland, dajohnso, dedgar, dmcphers, dominik.mierzejewski, fedora, gblomqui, gmccullo, gtanzill, hhorak, hhudgeon, jfrey, jgoulding, jhardy, jorton, jprause, ktdreyer, mtasaka, no1youknowz, obarenbo, psampaio, rbeyel, rcollet, roliveri, ruby-maint, simaishi, s, strzibny, tomckay, vanmeeuwen+fedora, vondruch, webstack-team, yozone |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | oniguruma 6.3.0, php 5.6.31, php 7.0.21, php 7.1.7 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2019-06-08 03:15:54 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 1466749, 1466750, 1466751, 1466752, 1466753, 1554537 | ||
| Bug Blocks: | 1466748, 1491035 | ||
|
Description
Adam Mariš
2017-06-30 11:16:28 UTC
Created oniguruma tracking bugs for this issue: Affects: epel-7 [bug 1466750] Affects: fedora-all [bug 1466752] Created php tracking bugs for this issue: Affects: fedora-all [bug 1466751] Created ruby tracking bugs for this issue: Affects: fedora-all [bug 1466749] Created ruby193-ruby tracking bugs for this issue: Affects: openshift-1 [bug 1466753] Note also the second upstream patch: https://github.com/kkos/oniguruma/commit/ddbf55698b5f7ffdfa737b0b8e0079af1fdd7cb1 The attack demonstrated here gives very limited control - it looks like in the best case, up to 8 bits in a range determined by uninitialised (stack) data can be set to 1. Ruby is not vulnerable according to upstream:
~~~
> CVE-2017-9228 https://github.com/kkos/oniguruma/issues/60
not affected.
% ruby <<'END'
str = [ 0xc7, 0xd6, 0xfe, 0xea, 0xe0, 0xe2, 0x00 ].pack('c*')
pattern = "\x5b\x5c\x48\x2d\xb0\x30\x8d\x30\x2a\x5b\x5d\x20\x20\x5d" +
"\xf9\x54\x00\x7f\x5c\x63\xef\xef\xef\xef\x52\xf7\xf7\x52" +
"\xf7\xeb\xeb\x70\x2b\xf7\x7b\x30\x2c\x32\x7d"
re = Regexp.new(pattern.force_encoding('GB18030'), Regexp::IGNORECASE)
re.match str.force_encoding('GB18030')
END
Traceback (most recent call last):
2: from -:5:in `<main>'
1: from -:5:in `new'
-:5:in `initialize': too short control escape: /[\H-\x{B0308D30}*[]
]\x{F954}\x00\x7F\c\x{EFEF}\x{EFEF}R\x{F7F7}R\x{F7EB}\x{EB70}+\x{F77B}0,2}/i
(RegexpError)
~~~
(In reply to Doran Moppert from comment #2) > Note also the second upstream patch: > > https://github.com/kkos/oniguruma/commit/ > ddbf55698b5f7ffdfa737b0b8e0079af1fdd7cb1 On Fedora, I submitted oniguruma-6.1.3-3.fc25 . oniguruma on F-26 and above already contains this fix. (F-24 is EOL) This issue has been addressed in the following products: Red Hat Software Collections for Red Hat Enterprise Linux 6 Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS Red Hat Software Collections for Red Hat Enterprise Linux 7 Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUS Via RHSA-2018:1296 https://access.redhat.com/errata/RHSA-2018:1296 |