| Package | Affected versions | Patched versions |
|---|---|---|
| postfix | = 2.0.0= 2.0.1= 2.0.10= 2.0.11= 2.0.12= 2.0.13= 2.0.14= 2.0.15= 2.0.16= 2.0.17= 2.0.18= 2.0.19= 2.0.2= 2.0.3= 2.0.4= 2.0.5= 2.0.6= 2.0.7= 2.0.8= 2.0.9= 2.1.0= 2.1.1= 2.1.2= 2.1.3= 2.1.4= 2.1.5= 2.1.6= 2.2.0= 2.2.1= 2.2.10= 2.2.11= 2.2.12= 2.2.2= 2.2.3= 2.2.4= 2.2.5= 2.2.6= 2.2.7= 2.2.8= 2.2.9= 2.3= 2.3.0= 2.3.1= 2.3.10= 2.3.11= 2.3.12= 2.3.13= 2.3.14= 2.3.15= 2.3.16= 2.3.17= 2.3.18= 2.3.19= 2.3.2= 2.3.3= 2.3.4= 2.3.5= 2.3.6= 2.3.7= 2.3.8= 2.3.9= 2.4= 2.4.0= 2.4.1= 2.4.10= 2.4.11= 2.4.12= 2.4.13= 2.4.14= 2.4.15= 2.4.2= 2.4.3= 2.4.4= 2.4.5= 2.4.6= 2.4.7= 2.4.8= 2.4.9= 2.5.0= 2.5.1= 2.5.10= 2.5.11= 2.5.12= 2.5.2= 2.5.3= 2.5.4= 2.5.5= 2.5.6= 2.5.7= 2.5.8= 2.5.9= 2.6= 2.6.0= 2.6.1= 2.6.2= 2.6.3= 2.6.4= 2.6.5= 2.6.6= 2.6.7= 2.6.8= 2.6.9= 2.7.0= 2.7.1= 2.7.2= 2.7.3= 2.8.0= 2.8.1= 2.8.2 |
The SMTP server in Postfix before 2.5.13, 2.6.x before 2.6.10, 2.7.x before 2.7.4, and 2.8.x before 2.8.3, when certain Cyrus SASL authentication methods are enabled, does not create a new server handle after client authentication fails, which allows remote attackers to cause a denial of service (heap memory corruption and daemon crash) or possibly execute arbitrary code via an invalid AUTH command with one method followed by an AUTH command with a different method.
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