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CVE-2019-15165

Published: 30 September 2019

sf-pcapng.c in libpcap before 1.9.1 does not properly validate the PHB header length before allocating memory.

Notes

AuthorNote
sbeattie
this is likely actually fixed by
617b12c0339db4891d117b661982126c495439ea
see github issue about CVE ID confusion
but whatever, can't get a straight answer out of upstream, so
will use this CVE ID for the issue that touches sf-pcapng.c

Priority

Medium

Cvss 3 Severity Score

5.3

Score breakdown

Status

Package Release Status
libpcap
Launchpad, Ubuntu, Debian
bionic
Released (1.8.1-6ubuntu1.18.04.1)
disco
Released (1.8.1-6ubuntu1.19.04.1)
eoan Not vulnerable
(1.9.1-2)
trusty
Released (1.5.3-2ubuntu0.1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
upstream
Released (1.9.1-1)
xenial
Released (1.7.4-2ubuntu0.1)
Patches:
upstream: https://github.com/the-tcpdump-group/libpcap/commit/a5a36d9e82dde7265e38fe1f87b7f11c461c29f6
upstream: https://github.com/the-tcpdump-group/libpcap/commit/87d6bef033062f969e70fa40c43dfd945d5a20ab

Severity score breakdown

Parameter Value
Base score 5.3
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact Low
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N