CVE-2017-9109

 

Published at: - 18-06-2020 04:15

Last modified: - 27-01-2023 08:05

Total changes: - 2

Description

An issue was discovered in adns before 1.5.2. It fails to ignore apparent answers before the first RR that was found the first time. when this is fixed, the second answer scan finds the same RRs at the first. Otherwise, adns can be confused by interleaving answers for the CNAME target, with the CNAME itself. In that case the answer data structure (on the heap) can be overrun. With this fixed, it prefers to look only at the answer RRs which come after the CNAME, which is at least arguably correct.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

 

Verification logic

 

Reference

• http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=adns.git;a=blob;f=changelog
• openSUSE-SU-2020:0827-Mailing List, Third Party Advisory
• https://www.chiark.greenend.org.uk/pipermail/adns-announce/2020/000004.html
• http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=adns.git
• FEDORA-2020-530188bf36-Mailing List, Third Party Advisory
• FEDORA-2020-e59bcaf702-Mailing List, Third Party Advisory

 

Keywords

NVD

 

CVE-2017-9109

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures