Описание
In Heimdal through 7.4, remote unauthenticated attackers are able to crash the KDC by sending a crafted UDP packet containing empty data fields for client name or realm. The parser would unconditionally dereference NULL pointers in that case, leading to a segmentation fault. This is related to the _kdc_as_rep function in kdc/kerberos5.c and the der_length_visible_string function in lib/asn1/der_length.c.
| Релиз | Статус | Примечание |
|---|---|---|
| artful | ignored | end of life |
| bionic | not-affected | 7.5.0+dfsg-1 |
| cosmic | not-affected | 7.5.0+dfsg-1 |
| devel | not-affected | 7.5.0+dfsg-1 |
| esm-infra-legacy/trusty | not-affected | code not present |
| esm-infra/bionic | not-affected | 7.5.0+dfsg-1 |
| esm-infra/xenial | not-affected | code not present |
| precise/esm | not-affected | code not present |
| trusty | not-affected | code not present |
| trusty/esm | not-affected | code not present |
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EPSS
5 Medium
CVSS2
7.5 High
CVSS3
Связанные уязвимости
In Heimdal through 7.4, remote unauthenticated attackers are able to crash the KDC by sending a crafted UDP packet containing empty data fields for client name or realm. The parser would unconditionally dereference NULL pointers in that case, leading to a segmentation fault. This is related to the _kdc_as_rep function in kdc/kerberos5.c and the der_length_visible_string function in lib/asn1/der_length.c.
In Heimdal through 7.4, remote unauthenticated attackers are able to c ...
In Heimdal through 7.4, remote unauthenticated attackers are able to crash the KDC by sending a crafted UDP packet containing empty data fields for client name or realm. The parser would unconditionally dereference NULL pointers in that case, leading to a segmentation fault. This is related to the _kdc_as_rep function in kdc/kerberos5.c and the der_length_visible_string function in lib/asn1/der_length.c.
EPSS
5 Medium
CVSS2
7.5 High
CVSS3