CVE-2019-1010220: tcpdump Buffer Over-read
CVSS: 4.3v2.0MediumModified
AliasesUBUNTU-CVE-2019-1010220DEBIAN-CVE-2019-1010220
Published 22-07-2019Last modified 05-08-2024
Vulnerability summary
CVE-2019-1010220 is a medium (CVSS 4.3) Buffer Over-read vulnerability in tcpdump. EPSS estimates a 1.34% chance of exploitation in the next 30 days, higher than 70.8% of scored vulnerabilities.
CVSS score
4.3/10
010
Medium · v2.0 (NVD)EPSS score
1.34%
0%100%
Low · -0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 10 · Related 10Timeline
- 22-07-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
tcpdump.org tcpdump 4.9.2 is affected by: CWE-126: Buffer Over-read. The impact is: May expose Saved Frame Pointer, Return Address etc. on stack. The component is: line 234: "ND_PRINT((ndo, "%s", buf));", in function named "print_prefix", in "print-hncp.c". The attack vector is: The victim must open a specially crafted pcap file.
CVSS metrics
4 scores · 3 sources · 2 versionsLow 3.3Preferred score · NVD (NIST)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:NSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated3.3LowCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
- OSV · DebianEcosystem advisory · calculated3.3LowCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:N/A:NSourcesSingle source
EPSS trend
Probability
1.34%
Chance of exploitation in the next 30 days
Percentile
71%
Versus all other CVEs
30-day change
-0.01 pp
From 1.35% on 18-09-2026
18-09-202618-10-2026
EPSS score1.34%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian1 product
- tcpdumpAll versions (No fix recorded)
Tcpdump1 product
- tcpdump4.9.2
Tcpdump.org1 product
- tcpdump4.9.2
Ubuntu1 product
- tcpdump< 4.9.3-0ubuntu0.14.04.1+esm1 | < 4.9.3-0ubuntu0.16.04.1 | < 4.9.3-0ubuntu0.18.04.1
4 vendors · 4 products
References
16 links- github.com/the-tcpdump-group/tcpdump/blob/tcpdump-4.9.2/print-hncp.cX Refsource MISCPatchThird Party AdvisoryREPORT
- github.com/the-tcpdump-group/tcpdump/blob/master/print-hncp.cX Refsource MISCPatchThird Party AdvisoryREPORT
- github.com/the-tcpdump-group/tcpdump/commits/master/print-hncp.cX Refsource MISCPatchThird Party AdvisoryREPORT