UpHeron
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Servers and applications

CVE-2011-1929

lib-mail/message-header-parser.c in Dovecot 1.2.x before 1.2.17 and 2.0.x before 2.0.13 does not properly handle '\0' characters in header names, which allows remote attackers to cause a denial of service (daemon crash or mailbox corruption) via a crafted e-mail message.

Severity
Medium 5.0
Published
24 May 2011
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
3.3% in the next 30 daysHigher than 88% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Improper input validation (CWE-20)
Attack
Over the network · No login needed
Attacker can
Slow it down
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Sources
NVD

Affected software

SoftwareAffected versions
DovecotServers and applications · cpe:a:dovecot:dovecot
  • Version 2.0.12
  • Version 2.0.11
  • Version 2.0.10
  • Version 2.0.9
All 31 release lines
  • Version 1.2.0
  • Version 1.2.1
  • Version 1.2.2
  • Version 1.2.3
  • Version 1.2.4
  • Version 1.2.5
  • Version 1.2.6
  • Version 1.2.7
  • Version 1.2.8
  • Version 1.2.9
  • Version 1.2.10
  • Version 1.2.11
  • Version 1.2.12
  • Version 1.2.13
  • Version 1.2.14
  • Version 1.2.15
  • Version 1.2.16
  • Version 2.0-beta1
  • Version 2.0.0
  • Version 2.0.1
  • Version 2.0.2
  • Version 2.0.3
  • Version 2.0.4
  • Version 2.0.5
  • Version 2.0.6
  • Version 2.0.7
  • Version 2.0.8
  • Version 2.0.9
  • Version 2.0.10
  • Version 2.0.11
  • Version 2.0.12

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2011-1929
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2011-1929