CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.0 | $5k-$25k | 0.00 |
A vulnerability was found in Apple iOS and iPadOS up to 14.2.1 (Smartphone Operating System) and classified as critical. Affected by this issue is an unknown code of the component FontParser. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability.
The weakness was released 12/14/2020 by Mateusz Jurczyk as HT212003 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability is handled as CVE-2020-27943. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 12/17/2020). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:
Processing a maliciously crafted font file may lead to arbitrary code execution
Upgrading to version 14.3 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:
A memory corruption issue existed in the processing of font files. This issue was addressed with improved input validation.
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: 6.3VulDB Meta Temp Score: 6.0
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
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: 🔍
Exploiting
Class: Memory corruptionCWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍
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 14.3
Timeline
10/27/2020 🔍12/14/2020 🔍
12/14/2020 🔍
12/15/2020 🔍
12/17/2020 🔍
Sources
Vendor: apple.comAdvisory: HT212003
Researcher: Mateusz Jurczyk
Status: Confirmed
CVE: CVE-2020-27943 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20150917
Entry
Created: 12/15/2020 13:59Updated: 12/17/2020 14:42
Changes: 12/15/2020 13:59 (12), 12/15/2020 14:00 (7), 12/15/2020 14:03 (28), 12/17/2020 14:42 (4)
Complete: 🔍
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