CVE-2020-28017 — Integer Overflow or Wraparound in Exim

CWE-190 — Integer Overflow or Wraparound9 documents7 sources
Severity
9.8CRITICALNVD
EPSS
3.2%
top 12.95%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Exim
Timeline
PublishedMay 6
Latest updateMay 24

Description

Exim 4 before 4.94.2 allows Integer Overflow to Buffer Overflow in receive_add_recipient via an e-mail message with fifty million recipients. NOTE: remote exploitation may be difficult because of resource consumption.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages1 packages

▶NVDexim/exim< 4.94.1

🔴Vulnerability Details

3
GHSA
GHSA-3g7c-3hhg-325m: Exim 4 before 4↗2022-05-24
▶
OSV
CVE-2020-28017: Exim 4 before 4↗2021-05-06
▶
CVEList
CVE-2020-28017: Exim 4 before 4↗2021-05-06
▶

📋Vendor Advisories

3
Ubuntu
Exim vulnerabilities↗2021-05-06
▶
Ubuntu
Exim vulnerabilities↗2021-05-04
▶
Debian
CVE-2020-28017: exim4 - Exim 4 before 4.94.2 allows Integer Overflow to Buffer Overflow in receive_add_r...↗2020
▶

🕵️Threat Intelligence

2
Qualys
21Nails: Multiple Critical Vulnerabilities in Exim Mail Server↗2021-05-04
▶
Qualys
21Nails: Multiple Critical Vulnerabilities in Exim Mail Server | Qualys↗2021-05-04
▶