CVE-2020-11647: debian debian_linux Uncontrolled Recursion
CVSS: 7.5v3.1HighModified
AliasesMGASA-2020-0172UBUNTU-CVE-2020-11647DEBIAN-CVE-2020-11647
Published 10-04-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-11647 is a high (CVSS 7.5) Uncontrolled Recursion vulnerability in debian debian_linux. EPSS estimates a 3.51% chance of exploitation in the next 30 days, higher than 89% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
3.51%
0%100%
Low · +0.11 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 5 · Related 4Timeline
- 10-04-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
In Wireshark 3.2.0 to 3.2.2, 3.0.0 to 3.0.9, and 2.6.0 to 2.6.15, the BACapp dissector could crash. This was addressed in epan/dissectors/packet-bacapp.c by limiting the amount of recursion.
CVSS metrics
4 scores · 3 sources · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
3.51%
Chance of exploitation in the next 30 days
Percentile
89%
Versus all other CVEs
30-day change
+0.11 pp
From 3.40% on 19-09-2026
19-09-202619-10-2026
EPSS score3.51%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian2 products
- wireshark< 3.2.3-1
- debian_linuxEOL9.0
Mageia1 product
- wireshark< 3.0.10-1.mga7
Opensuse1 product
- leapEOL15.1 | 15.2
Ubuntu1 product
- wiresharkAll versions (No fix recorded)
Wireshark1 product
- wireshark≥ 2.6.0, ≤ 2.6.15 | ≥ 3.0.0, ≤ 3.0.9 | ≥ 3.2.0, ≤ 3.2.2
5 vendors · 6 products
References
16 links- bugs.wireshark.org/bugzilla/show_bug.cgi?id=16474X Refsource MISCREPORTIssue TrackingVendor Advisory
- code.wireshark.org/review/…X Refsource MISC
- lists.opensuse.org/opensuse-security-announce/2020-08/msg00026.htmlVendor AdvisoryX Refsource SUSEMailing ListPatchThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-08/msg00038.htmlVendor AdvisoryX Refsource SUSEMailing ListPatchThird Party Advisory
lists.debian.org/debian-lts-announce/2021/02/msg00008.htmlMailing ListX Refsource MLISTThird Party Advisory