CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
8.2 | $25k-$100k | 0.00 |
A vulnerability has been found in Apple iOS and iPadOS up to 13.3.1 (Smartphone Operating System) and classified as critical. This vulnerability affects an unknown function of the component libxml2. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability.
The weakness was disclosed 03/24/2020 as HT211102 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability was named CVE-2020-3909. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 04/02/2020). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:
A buffer overflow was addressed with improved bounds checking.
Upgrading to version 13.4 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.
The entries 152505, 152520, 152542 and 152561 are pretty similar.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.5VulDB Meta Temp Score: 8.4
VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Buffer overflowCWE: CWE-120 / CWE-119
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: iOS/iPadOS 13.4
Timeline
12/18/2019 🔍03/24/2020 🔍
03/24/2020 🔍
04/02/2020 🔍
10/06/2020 🔍
Sources
Vendor: apple.comAdvisory: HT211102
Status: Confirmed
CVE: CVE-2020-3909 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍
Entry
Created: 04/02/2020 11:46Updated: 10/06/2020 13:18
Changes: 04/02/2020 11:46 (46), 04/02/2020 11:51 (16), 10/06/2020 13:18 (2)
Complete: 🔍
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