Dovecot up to 2.3.10.0 Submission-Login Parameter null pointer dereference
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.1 | $0-$5k | 0.00 |
A vulnerability classified as problematic was found in Dovecot up to 2.3.10.0 (Mail Server Software). This vulnerability affects an unknown function of the component Submission-Login. The manipulation as part of a Parameter leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. CVE summarizes:
In Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a NOOP command causes a NULL Pointer Dereference and crash in submission-login, submission, or lmtp.
The weakness was released 05/18/2020 (oss-sec). The advisory is available at openwall.com. This vulnerability was named CVE-2020-10957 since 03/25/2020. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.
Upgrading to version 2.3.10.1 eliminates this vulnerability.
Entries connected to this vulnerability are available at 155387 and 155388.
Product
Type
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: 6.4VulDB Meta Temp Score: 6.3
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔍
CVSSv2
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Null pointer dereferenceCWE: CWE-476 / CWE-404
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 |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Dovecot 2.3.10.1
Timeline
03/25/2020 🔍05/18/2020 🔍
05/19/2020 🔍
10/18/2020 🔍
Sources
Advisory: openwall.comStatus: Not defined
Confirmation: 🔍
CVE: CVE-2020-10957 (🔍)
See also: 🔍
Entry
Created: 05/19/2020 06:45Updated: 10/18/2020 16:52
Changes: 05/19/2020 06:45 (41), 05/19/2020 06:50 (12), 10/18/2020 16:52 (1)
Complete: 🔍
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