Vulnerability Details : CVE-2018-7420
In Wireshark 2.2.0 to 2.2.12 and 2.4.0 to 2.4.4, the pcapng file parser could crash. This was addressed in wiretap/pcapng.c by adding a block-size check for sysdig event blocks.
Products affected by CVE-2018-7420
- cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*
- cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-7420
2.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 82 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-7420
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
References for CVE-2018-7420
-
http://www.securityfocus.com/bid/103163
Wireshark 'pcapng.c' Denial of Service VulnerabilityThird Party Advisory;VDB Entry
-
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14403
14403 – Missing bounds check on memory allocation in pcapng.cIssue Tracking;Vendor Advisory
-
https://lists.debian.org/debian-lts-announce/2018/04/msg00018.html
[SECURITY] [DLA 1353-1] wireshark security updateMailing List;Third Party Advisory
-
https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=129e41f9f63885ad8224ef413c2860788fb9e849
code.wireshark Code Review - wireshark.git/commitPatch;Vendor Advisory
-
https://www.wireshark.org/security/wnpa-sec-2018-11.html
Wireshark · wnpa-sec-2018-11 · Pcapng file parser crashVendor Advisory
-
https://lists.debian.org/debian-lts-announce/2019/01/msg00010.html
[SECURITY] [DLA 1634-1] wireshark security updateMailing List;Third Party Advisory
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