Buffer overflow in Apple Iphone OS
CVE-2016-4658
xpointer.c in libxml2 before 2.9.5 (as used in Apple iOS before 10, OS X before 10.12, tvOS before 10, and watchOS before 3, and other products) does not forbid namespace nodes in XPointer ranges, which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free and memory corruption) via a crafted XML document.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.086 (95.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 95.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.093 · newest: 0.086 · change: -0.007
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support.apple.com/HT207141 (Vendor Advisory)
- www.securitytracker.com/id/1036858 (VDB Entry, Third Party Advisory, vdb-entry)
- lists.apple.com/archives/security-announce/2016/Sep/msg00006.html (vendor-advisory, Mailing List, Vendor Advisory)
- lists.apple.com/archives/security-announce/2016/Sep/msg00008.html (vendor-advisory, Mailing List, Vendor Advisory)
- lists.apple.com/archives/security-announce/2016/Sep/msg00010.html (vendor-advisory, Mailing List, Vendor Advisory)
- lists.apple.com/archives/security-announce/2016/Sep/msg00011.html (vendor-advisory, Mailing List, Vendor Advisory)
- www.securityfocus.com/bid/93054 (VDB Entry, Third Party Advisory, vdb-entry)
- support.apple.com/HT207170 (Vendor Advisory)
- security.gentoo.org/glsa/201701-37 (vendor-advisory, Third Party Advisory)
- support.apple.com/HT207142 (Vendor Advisory)
Frequently asked questions
- What is CVE-2016-4658?
- CVE-2016-4658 is a critical-severity vulnerability in Apple Iphone OS, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2016-09-25.
- How severe is CVE-2016-4658?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2016-4658 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.