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

CVE-2019-15165

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

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

MEDIUM · CVSS 5.3 EPSS 0.03198
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-770Allocation of Resources Without Limits or Throttling
CWE-770Allocation of Resources Without Limits or Throttling
▤

Affected Products & Versions

12
tcpdump libpcap< 1.9.1
debian linuxall versions
opensuse leapall versions
oracle communications operations monitorall versions
apple ipadosall versions
apple iphone osall versions
apple mac os x>= 10.13 and < 10.13.6
apple mac os xall versions
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD03 Oct 2019 · 07:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

7
usnUSN-4221-2
usnUSN-4221-1
suse-csafopenSUSE-SU-2019:2343-1
suse-csafopenSUSE-SU-2019:2345-1
suse-csafSUSE-SU-2019:2669-1
🔗

References & Sources

20
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00051.htmlMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00052.htmlMailing ListThird Party Advisory
http://seclists.org/fulldisclosure/2019/Dec/26Issue TrackingMailing ListThird Party Advisory
https://github.com/the-tcpdump-group/libpcap/blob/libpcap-1.9/CHANGESProductRelease Notes
https://github.com/the-tcpdump-group/libpcap/commit/87d6bef033062f969e70fa40c43dfd945d5a20abPatchThird Party Advisory
https://github.com/the-tcpdump-group/libpcap/commit/a5a36d9e82dde7265e38fe1f87b7f11c461c29f6PatchThird Party Advisory
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