CVE-2017-9049: Use After Free
Published May 18, 2017
·Updated
libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictComputeFastKey function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for libxml2 Bug 759398.
Other sources
libxml2. A use after free issue was addressed with improved memory management.
Credit
Wei Lei, Liu Yang - Nanyang Technological University in Singapore, Wei Lei, Liu Yang - Nanyang Technological University in Singapore, Wei Lei, Liu Yang - Nanyang Technological University in Singapore, Wei Lei, Liu Yang - Nanyang Technological University in Singapore, Wei Lei, Liu Yang - Nanyang Technological University in Singapore, Wei Lei, Liu Yang - Nanyang Technological University in Singapore, Wei Lei, Liu Yang - Nanyang Technological University in Singapore
Affected Software
12 affected componentsFixes available
debian/libxml2
2.9.4+dfsg1-7+deb10u42.9.4+dfsg1-7+deb10u62.9.10+dfsg-6.7+deb11u42.9.14+dfsg-1.3~deb12u12.9.14+dfsg-1.3
debian/libxml2<=2.9.4+dfsg1-2.2, <=2.9.1+dfsg1-5
2.9.4+dfsg1-3.12.9.4+dfsg1-2.2+deb9u12.9.1+dfsg1-5+deb8u5
Apple tvOS<11
11
Apple macOS High Sierra<10.13
10.13
Apple macOS High Sierra<10.13.1
10.13.1
Apple Sierra
Apple El Capitan
Apple WatchOS<4
4
Apple iCloud for Windows<7.0
7.0
Xmlsoft Libxml2=2.9.4
Apple iTunes for Windows<12.7
12.7
Apple iOS<11
11
Remediation
Patch Available
Event History
May 18, 2017
CVE Published
via MITRE·06:13 AM
Data Sourced
via MITRE·06:13 AM
Description
Data Sourced
via NVD·06:29 AM
RemedyDescriptionSeverityWeaknessAffected Software
Parent advisories
This vulnerability appears in the following advisories.
Peer vulnerabilities
Found alongside the following vulnerabilities.
- CVE-2017-13832
- CVE-2017-13829
- CVE-2017-13833
- CVE-2017-7083
- CVE-2017-0381
- CVE-2017-13825
- CVE-2017-13815
- CVE-2017-13828
- CVE-2017-13830
- CVE-2017-13814
- CVE-2017-13831
- CVE-2017-13817
- CVE-2017-13818
- CVE-2017-13836
- CVE-2017-13841
- CVE-2017-13840
- CVE-2017-13842
- CVE-2017-13782
- CVE-2017-13843
- CVE-2017-7114
- CVE-2017-13854
- CVE-2017-13834
- CVE-2017-13873
- CVE-2017-13813
- CVE-2017-13816
- CVE-2017-13812
- CVE-2017-7086
- CVE-2017-1000373
- CVE-2016-9063
- CVE-2017-9233
- CVE-2017-9049
- CVE-2017-5130
- CVE-2017-7376
- CVE-2017-9050
- CVE-2017-13822
- CVE-2017-7080
- CVE-2017-10989
- CVE-2017-7128
- CVE-2017-7129
- CVE-2017-7130
- CVE-2017-7127
- CVE-2017-7081
- CVE-2017-7087
- CVE-2017-7091
- CVE-2017-7092
- CVE-2017-7093
- CVE-2017-7094
- CVE-2017-7095
- CVE-2017-7096
- CVE-2017-7098
- CVE-2017-7099
- CVE-2017-7100
- CVE-2017-7102
- CVE-2017-7104
- CVE-2017-7107
- CVE-2017-7111
- CVE-2017-7117
- CVE-2017-7120
- CVE-2017-7090
- CVE-2017-7109
- CVE-2017-11120
- CVE-2017-11121
- CVE-2017-7103
- CVE-2017-7105
- CVE-2017-7108
- CVE-2017-7110
- CVE-2017-7112
- CVE-2017-7115
- CVE-2017-7116
- CVE-2017-11122
- CVE-2016-9840
- CVE-2016-9841
- CVE-2016-9842
- CVE-2016-9843
- CVE-2016-0736
- CVE-2016-2161
- CVE-2016-5387
- CVE-2016-8740
- CVE-2016-8743
- CVE-2017-13909
- CVE-2017-13809
- CVE-2017-7084
- CVE-2017-7074
- CVE-2017-13820
- CVE-2017-13807
- CVE-2017-7143
- CVE-2017-13821
- CVE-2017-13890
- CVE-2017-13851
- CVE-2017-7138
- CVE-2017-7121
- CVE-2017-7122
- CVE-2017-7123
- CVE-2017-7124
- CVE-2017-7125
- CVE-2017-7126
- CVE-2017-13811
- CVE-2017-13835
- CVE-2017-11103
- CVE-2017-13819
- CVE-2017-13837
- CVE-2017-13906
- CVE-2017-7077
- CVE-2017-7119
- CVE-2017-13810
- CVE-2017-13827
- CVE-2016-4736
- CVE-2018-4302
- CVE-2017-7141
- CVE-2017-7078
- CVE-2017-6451
- CVE-2017-6452
- CVE-2017-6455
- CVE-2017-6458
- CVE-2017-6459
- CVE-2017-6460
- CVE-2017-6462
- CVE-2017-6463
- CVE-2017-6464
- CVE-2016-9042
- CVE-2017-13824
- CVE-2017-13846
- CVE-2017-10140
- CVE-2017-7132
- CVE-2017-13823
- CVE-2017-13808
- CVE-2017-13838
- CVE-2017-7082
- CVE-2017-13908
- CVE-2017-13839
- CVE-2017-13910
- CVE-2017-3167
- CVE-2017-3169
- CVE-2017-7659
- CVE-2017-7668
- CVE-2017-7679
- CVE-2017-9788
- CVE-2017-9789
- CVE-2017-13786
- CVE-2017-13800
- CVE-2017-1000100
- CVE-2017-1000101
- CVE-2017-13801
- CVE-2017-13799
- CVE-2017-13852
- CVE-2017-5969
- CVE-2018-4390
- CVE-2018-4391
- CVE-2017-13907
- CVE-2017-7170
- CVE-2017-7150
- CVE-2017-13804
- CVE-2017-11108
- CVE-2017-11541
- CVE-2017-11542
- CVE-2017-11543
- CVE-2017-12893
- CVE-2017-12894
- CVE-2017-12895
- CVE-2017-12896
- CVE-2017-12897
- CVE-2017-12898
- CVE-2017-12899
- CVE-2017-12900
- CVE-2017-12901
- CVE-2017-12902
- CVE-2017-12985
- CVE-2017-12986
- CVE-2017-12987
- CVE-2017-12988
- CVE-2017-12989
- CVE-2017-12990
- CVE-2017-12991
- CVE-2017-12992
- CVE-2017-12993
- CVE-2017-12994
- CVE-2017-12995
- CVE-2017-12996
- CVE-2017-12997
- CVE-2017-12998
- CVE-2017-12999
- CVE-2017-13000
- CVE-2017-13001
- CVE-2017-13002
- CVE-2017-13003
- CVE-2017-13004
- CVE-2017-13005
- CVE-2017-13006
- CVE-2017-13007
- CVE-2017-13008
- CVE-2017-13009
- CVE-2017-13010
- CVE-2017-13011
- CVE-2017-13012
- CVE-2017-13013
- CVE-2017-13014
- CVE-2017-13015
- CVE-2017-13016
- CVE-2017-13017
- CVE-2017-13018
- CVE-2017-13019
- CVE-2017-13020
- CVE-2017-13021
- CVE-2017-13022
- CVE-2017-13023
- CVE-2017-13024
- CVE-2017-13025
- CVE-2017-13026
- CVE-2017-13027
- CVE-2017-13028
- CVE-2017-13029
- CVE-2017-13030
- CVE-2017-13031
- CVE-2017-13032
- CVE-2017-13033
- CVE-2017-13034
- CVE-2017-13035
- CVE-2017-13036
- CVE-2017-13037
- CVE-2017-13038
- CVE-2017-13039
- CVE-2017-13040
- CVE-2017-13041
- CVE-2017-13042
- CVE-2017-13043
- CVE-2017-13044
- CVE-2017-13045
- CVE-2017-13046
- CVE-2017-13047
- CVE-2017-13048
- CVE-2017-13049
- CVE-2017-13050
- CVE-2017-13051
- CVE-2017-13052
- CVE-2017-13053
- CVE-2017-13054
- CVE-2017-13055
- CVE-2017-13687
- CVE-2017-13688
- CVE-2017-13689
- CVE-2017-13690
- CVE-2017-13725
- CVE-2017-13077
- CVE-2017-13078
- CVE-2017-13080
- CVE-2017-7089
- CVE-2017-7106
- CVE-2017-13863
- CVE-2017-7131
- CVE-2017-7088
- CVE-2017-7072
- CVE-2017-7140
- CVE-2017-7148
- CVE-2017-7097
- CVE-2017-7118
- CVE-2017-7133
- CVE-2017-7075
- CVE-2017-7139
- CVE-2017-13806
- CVE-2017-7085
- CVE-2017-13877
- CVE-2017-7146
- CVE-2017-6211
- CVE-2017-7145
- CVE-2017-7144
- CVE-2017-7142
Frequently Asked Questions
1
What is CVE-2017-9049?
CVE-2017-9049 is a vulnerability in the libxml2 library that could cause programs to crash.
2
Which software versions are affected by CVE-2017-9049?
CVE-2017-9049 affects various versions of Apple tvOS, iOS, libxml2 on Debian, macOS High Sierra, iTunes for Windows, watchOS, iCloud for Windows, and other versions of libxml2 on Debian.
3
What is the severity of CVE-2017-9049?
CVE-2017-9049 has a severity score of 7.5, which is considered high.
4
How can I fix CVE-2017-9049?
To fix CVE-2017-9049, you should update to the latest version of the affected software or apply the recommended patches.
5
Where can I find more information about CVE-2017-9049?
You can find more information about CVE-2017-9049 on the Apple support website and the Bugzilla page.