vulnwire
9.8crit

CVE-2017-9109

An issue was discovered in adns before 1.5.2.

Published 6 y ago · modified 4 mo ago · JSON

CVSS
9.8
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
2.0%
percentile 81%
Public exploits
0
none known

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.

Exploit prediction (EPSS)

2.04% probability of exploitation in the next 30 days, higher than 81% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.19.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD2.07.5AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

  • chiark.greenend.org.uk /ucgi/~ianmdlvl/git?p=adns.git · x_refsource_MISC, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2020-06/msg00037.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • chiark.greenend.org.uk /pipermail/adns-announce/2020/000004.html · x_refsource_CONFIRM, x_transferred
  • chiark.greenend.org.uk /ucgi/~ianmdlvl/git?p=adns.git%3Ba=blob%3Bf=changelog · x_refsource_CONFIRM, x_transferred
  • lists.fedoraproject.org /archives/list/package-announce%40lists.fedoraproject.org/message/TRVHN3GGVNQWAOL3PWC5FLAV · vendor-advisory, x_refsource_FEDORA, x_transferred
  • lists.fedoraproject.org /archives/list/package-announce%40lists.fedoraproject.org/message/UGFZ4SPV6KFQK6ZNUZFB5Y32 · vendor-advisory, x_refsource_FEDORA, x_transferred

Sources

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