CVE-2017-17439Not scoredCWE-476

CVE-2017-17439: Heimdal Project vulnerability

Heimdal Project · Heimdal

Vendor fix available · Affected: Heimdal Project · Exploitation: possible (1 to 10%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

3.4%probability of exploitation in the next 30 days

89th percentile

050100

Higher than 89% of scored CVEs

Not scored yet. The CVE record carries no CVSS score.

DescriptionCVE.org

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.

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Exploitation: Possible (1 to 10%). EPSS between 1% and 10%.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: NULL Pointer Dereference · Memory Corruption
Vendor: Heimdal Project
Published: December 2017
Band: Possible (1 to 10%), December 2017

CoverageNo articles yet

No CyberSIXT article names CVE-2017-17439 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.