CVE-2019-20421: canonical ubuntu_linux Infinite Loop
CVSS: 7.8v2.0HighModified
AliasesALPINE-CVE-2019-20421MGASA-2020-0084UBUNTU-CVE-2019-20421USN-4270-1DEBIAN-CVE-2019-20421
Published 27-01-2020Last modified 05-08-2024
Vulnerability summary
CVE-2019-20421 is a high (CVSS 7.8) Infinite Loop vulnerability in canonical ubuntu_linux. EPSS estimates a 4.30% chance of exploitation in the next 30 days, higher than 91% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.8/10
010
High · v2.0 (NVD)EPSS score
4.30%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Advisory lineage
Upstream 0 · Downstream 4 · Related 1Timeline
- 27-01-2020PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
In Jp2Image::readMetadata() in jp2image.cpp in Exiv2 0.27.2, an input file can result in an infinite loop and hang, with high CPU consumption. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted file.
CVSS metrics
5 scores · 4 sources · 2 versionsHigh 7.5Preferred score · OSV · Alpine (Ecosystem advisory) · calculated from vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 4 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
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
High 7.8Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:CSourcesSingle source
EPSS trend
Probability
4.30%
Chance of exploitation in the next 30 days
Percentile
91%
Versus all other CVEs
30-day change
0.00 pp
From 4.30% on 19-09-2026
19-09-202619-10-2026
EPSS score4.30%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExiv2
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Debian2 products
- exiv2< 0.27.2-8
- debian_linuxEOL9.0 | 10.0
Alpine1 product
- exiv2< 0.27.2-r3
Canonical1 product
- ubuntu_linuxEOL16.04 | 18.04 | 19.10
Exiv21 product
- exiv20.27.2
Mageia1 product
- exiv2< 0.27.1-3.3.mga7
Ubuntu1 product
- exiv2< 0.25-2.1ubuntu16.04.6 | < 0.25-3.1ubuntu0.18.04.5
6 vendors · 7 products
References
13 links- github.com/Exiv2/exiv2/commit/a82098f4f90cd86297131b5663c3dec6a34470e8X Refsource MISCREPORTPatchThird Party Advisory
- lists.debian.org/debian-lts-announce/2021/08/msg00028.htmlMailing ListX Refsource MLISTThird Party Advisory
