DEBIAN-CVE-2023-27043

Advisory lineage Upstream: 1 Downstream: 2
Upstream
CVE-2023-27043
Published: 19 Apr 2023, 00:15
Last modified:28 Apr 2026, 20:25

Vulnerability Summary

Overall Risk (default)
low
21/100
CVSS Score
5.3 MEDIUM
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

19 Apr 2023, 00:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:25
Last Modified
Vulnerability information updated

Description

The email module of Python through 3.11.3 incorrectly parses e-mail addresses that contain a special character. The wrong portion of an RFC2822 header is identified as the value of the addr-spec. In some applications, an attacker can bypass a protection mechanism in which application access is granted only after verifying receipt of e-mail to a specific domain (e.g., only @company.example.com addresses may be used for signup). This occurs in email/_parseaddr.py in recent versions of Python.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected Systems

  • debian•pypy3

    < 7.3.5+dfsg-2+deb11u4 | < 7.3.11+dfsg-2+deb12u3 | < 7.3.17+dfsg-3 | < 7.3.17+dfsg-3

  • debian•python2.7

    all

  • debian•python3.11

    < 3.11.2-6+deb12u5

  • debian•python3.9

    < 3.9.2-1+deb11u2

References (1)