CVE-2016-1762
Vulnerability Summary
Timeline
Description
The xmlNextChar function in libxml2 before 2.9.4 allows remote attackers to cause a denial of service (heap-based buffer over-read) via a crafted XML document.
CVSS Metrics
- v3.1•HIGH•Score: 8.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
- v3.0•HIGH•Score: 8.1CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
- v2.0•MEDIUM•Score: 5.8AV:N/AC:M/Au:N/C:P/I:N/A:P
EPSS Trends
Current EPSS score: 2.42%• Percentile: 85%
Techniques & Countermeasures
- CWE-119•Improper Restriction of Operations within the Bounds of a Memory Buffer
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
- CWE-122•Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
Affected Systems
- apple•iphone_os
< 9.3
- apple•mac_os_x
< 10.11.4
- apple•safari
< 9.1
- apple•tvos
< 9.2
- apple•watchos
< 2.2
- canonical•ubuntu_linux
12.04 | 14.04 | 15.10 | 16.04
- debian•debian_linux
8.0
- mcafee•web_gateway
≤ 7.5.2.10 | > 7.5.2.11, ≤ 7.6.2.3
- redhat•enterprise_linux_desktop
6.0 | 7.0
- redhat•enterprise_linux_server
6.0 | 7.0
- redhat•enterprise_linux_server_aus
7.2 | 7.3 | 7.4 | 7.6
- redhat•enterprise_linux_server_eus
7.2 | 7.3 | 7.4 | 7.5 | 7.6
- redhat•enterprise_linux_server_tus
7.2 | 7.3 | 7.6
- redhat•enterprise_linux_workstation
6.0 | 7.0
- xmlsoft•libxml2
< 2.9.4
References (22)
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- https://kc.mcafee.com/corporate/index?page=content&id=SB10170
- http://lists.apple.com/archives/security-announce/2016/Mar/msg00004.html
- https://support.apple.com/HT206167
- https://support.apple.com/HT206168
- https://access.redhat.com/errata/RHSA-2016:1292
- http://lists.apple.com/archives/security-announce/2016/Mar/msg00005.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
- https://www.debian.org/security/2016/dsa-3593
- http://www.securitytracker.com/id/1035353
- http://lists.apple.com/archives/security-announce/2016/Mar/msg00000.html
- http://xmlsoft.org/news.html
- https://bugzilla.gnome.org/show_bug.cgi?id=759671
- http://www.ubuntu.com/usn/USN-2994-1
- http://lists.apple.com/archives/security-announce/2016/Mar/msg00001.html
- https://git.gnome.org/browse/libxml2/commit/?id=a7a94612aa3b16779e2c74e1fa353b5d9786c602
- https://support.apple.com/HT206171
- http://rhn.redhat.com/errata/RHSA-2016-2957.html
- http://lists.apple.com/archives/security-announce/2016/Mar/msg00002.html
- https://support.apple.com/HT206169
- https://support.apple.com/HT206166
- http://www.securityfocus.com/bid/85059