7.5

CVE-2019-15163: tcpdump libpcap NULL Pointer Dereference

CVSS: 7.5v3.1HighModified
AliasesALPINE-CVE-2019-15163DEBIAN-CVE-2019-15163
Published 03-10-2019Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2019-15163 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in tcpdump libpcap. EPSS estimates a 4.44% chance of exploitation in the next 30 days, higher than 91.2% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
4.44%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1
MGASA-2019-0297

Timeline

  1. 03-10-2019
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

rpcapd/daemon.c in libpcap before 1.9.1 allows attackers to cause a denial of service (NULL pointer dereference and daemon crash) if a crypt() call fails.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

4.44%

Chance of exploitation in the next 30 days

Percentile

91%

Versus all other CVEs

30-day change

0.00 pp

From 4.44% on 18-09-2026

18-09-202618-10-2026
EPSS score
4.44%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Alpine1 product
  • libpcap< 1.1.1-r0 | < 1.9.1-r0
Debian1 product
  • libpcap< 1.9.1-1
Tcpdump1 product

3 vendors · 3 products

References

16 links
Show all 16 references