CVE-2020-4030: canonical ubuntu_linux Out-of-bounds Read
CVSS: 6.5v3.1MediumModified
AliasesUBUNTU-CVE-2020-4030DEBIAN-CVE-2020-4030
Published 22-06-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-4030 is a medium (CVSS 6.5) Out-of-bounds Read vulnerability in canonical ubuntu_linux. EPSS estimates a 1.66% chance of exploitation in the next 30 days, higher than 76.2% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (NVD)EPSS score
1.66%
0%100%
Low · -0.19 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 9 · Related 6Timeline
- 22-06-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
In FreeRDP before version 2.1.2, there is an out of bounds read in TrioParse. Logging might bypass string length checks due to an integer overflow. This is fixed in version 2.1.2.
CVSS metrics
5 scores · 4 sources · 2 versionsMedium 6.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:LSources4 sources · 3.5–6.5
- CVE.orgCNA3.5LowCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:NDiffers
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Medium 6.4Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:N/A:PSourcesSingle source
EPSS trend
Probability
1.66%
Chance of exploitation in the next 30 days
Percentile
76%
Versus all other CVEs
30-day change
-0.19 pp
From 1.85% on 18-09-2026
18-09-202618-10-2026
EPSS score1.66%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-125Out-of-bounds ReadThe product reads data past the end, or before the beginning, of the intended buffer.
- CWE-190Integer Overflow or WraparoundThe product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
Affected systems
Debian2 products
- freerdp2< 2.1.2+dfsg1-1
- debian_linuxEOL10.0
Ubuntu2 products
- freerdpAll versions (No fix recorded)
- freerdp2< 2.2.0+dfsg1-0ubuntu0.18.04.1 | < 2.2.0+dfsg1-0ubuntu0.20.04.1
Canonical1 product
- ubuntu_linuxEOL18.04 | 20.04
Fedoraproject1 product
- fedoraEOL31 | 32
Freerdp1 product
- freerdp< 2.1.2
Opensuse1 product
- leapEOL15.1
6 vendors · 8 products
References
12 links- lists.opensuse.org/opensuse-security-announce/2020-07/msg00080.htmlVendor AdvisoryMailing ListThird Party Advisory
- lists.fedoraproject.org/archives/…Vendor Advisory
- lists.fedoraproject.org/archives/…Vendor Advisory
