CVE-2016-4655

Apple iOS: Information Disclosure

As of , CVE-2016-4655 in Apple iOS is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch this week.

Exploited
Yes: CISA listed it on 24 May 2022
US federal deadline
14 June 202221 days after CISA listed it. US federal civilian agencies must fix it by then.
Used in ransomware campaigns
Not known to CISA
EPSS score
0.33Higher than 98% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
EPSS when listed
0.06 on 24 May 2022EPSS on the day CISA listed it.
Public exploit
1 Metasploit module and 1 Exploit-DB entry (1 verified)
Fix
No vendor link in CISA's entry

What CISA says to do

Apply updates per vendor instructions.

CISA's required action

What the flaw is

The Apple iOS kernel allows attackers to obtain sensitive information from memory via a crafted application.

CISA's description

The kernel in Apple iOS before 9.3.5 allows attackers to obtain sensitive information from memory via a crafted app.

The CVE record's description, from apple

CVE published
25 August 2016
Assigned by
apple
CVSS
5.5 Medium (CVSS 3.1, from CISA-ADP)
CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
CISA SSVC, exploitation
active
CISA SSVC, automatable
no
CISA SSVC, technical impact
partial

Timeline

  1. The CVE record was published.
  2. Exploit-DB published an exploit (EDB-ID 44836).
  3. CISA added it to its list of exploited vulnerabilities.
  4. The US federal deadline to fix it.

Public exploits

Facts from Metasploit's module list and Exploit-DB's index; we never copy exploit code.

iOS: other exploited entries

VulnerabilityProductOur groupListedDeadlineEPSS
CVE-2016-4657Webkit Memory CorruptionApple iOSPatch this weekMetasploit module; EPSS 0.67; verified Exploit-DB entry0.67
CVE-2016-4656Memory CorruptionApple iOSPatch this weekMetasploit module; verified Exploit-DB entry0.24
CVE-2021-30761WebKit Memory CorruptionApple iOSPatch soon0.11
CVE-2021-30762WebKit Use-After-FreeApple iOSPatch soon0.11
CVE-2022-42856Type ConfusionApple iOSPatch soon0.09
CVE-2019-7287Memory CorruptionApple iOSPatch soon0.05
CVE-2021-30666WebKit Buffer OverflowApple iOSPatch soon0.03

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