CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
3.1 | $0-$5k | 0.00 |
A vulnerability was found in Dovecot 2.3.9.0/2.3.9.1/2.3.9.2 (Mail Server Software). It has been classified as problematic. This affects an unknown functionality of the component IMAP/LMTP. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:
The IMAP and LMTP components in Dovecot 2.3.9 before 2.3.9.3 mishandle snippet generation when many characters must be read to compute the snippet and a trailing > character exists. This causes a denial of service in which the recipient cannot read all of their messages.
The weakness was released 02/12/2020 (oss-sec). The advisory is shared at openwall.com. This vulnerability is uniquely identified as CVE-2020-7957 since 01/24/2020. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.
Upgrading to version 2.3.9.3 eliminates this vulnerability.
Entry connected to this vulnerability is available at 150080.
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: 3.1VulDB Meta Temp Score: 3.1
VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 3.1
NVD Vector: 🔍
CNA Base Score: 3.1
CNA Vector (MITRE): 🔍
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: Denial of serviceCWE: CWE-404
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: 🔍
0-Day Time: 🔍
Upgrade: Dovecot 2.3.9.3
Timeline
01/24/2020 🔍02/12/2020 🔍
02/13/2020 🔍
03/30/2024 🔍
Sources
Advisory: FEDORA-2020-0e6a67af5aStatus: Not defined
CVE: CVE-2020-7957 (🔍)
See also: 🔍
Entry
Created: 02/13/2020 08:25Updated: 03/30/2024 15:58
Changes: 02/13/2020 08:25 (39), 02/13/2020 08:30 (12), 03/30/2024 15:52 (16), 03/30/2024 15:58 (18)
Complete: 🔍
Cache ID: 3:618:103
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