Exim up to 4.94.1 parse_fix_phrase out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Exim up to 4.94.1. Affected by this vulnerability is the function parse_fix_phrase. Executing a manipulation can lead to out-of-bounds write. This vulnerability is handled as CVE-2020-28016. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Exim up to 4.94.1 (Mail Server Software). It has been declared as critical. This vulnerability affects the function parse_fix_phrase. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was released 05/06/2021. The advisory is available at qualys.com. This vulnerability was named CVE-2020-28016. Technical details are known, but there is no available exploit.

Upgrading to version 4.94.2 eliminates this vulnerability.

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Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Exim 4.94.2

Timelineinfo

10/30/2020 🔍
05/06/2021 +187 days 🔍
05/06/2021 +0 days 🔍
05/09/2021 +3 days 🔍

Sourcesinfo

Advisory: qualys.com
Status: Confirmed

CVE: CVE-2020-28016 (🔍)
GCVE (CVE): GCVE-0-2020-28016
GCVE (VulDB): GCVE-100-174526

Entryinfo

Created: 05/06/2021 09:30
Updated: 05/09/2021 08:18
Changes: 05/06/2021 09:30 (36), 05/07/2021 09:44 (6), 05/09/2021 08:18 (2)
Complete: 🔍
Cache ID: 216::103

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