CVE-2020-27814: debian debian_linux Heap-based Buffer Overflow
Vulnerability summary
CVE-2020-27814 is a high (CVSS 7.8) Heap-based Buffer Overflow vulnerability in debian debian_linux. EPSS estimates a 2.10% chance of exploitation in the next 30 days, higher than 81.6% of scored vulnerabilities. 1 public exploit is recorded.
Public exploit (GitHub, Date unknown)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 9 · Related 5Timeline
- 25-01-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
A heap-buffer overflow was found in the way openjpeg2 handled certain PNG format files. An attacker could use this flaw to cause an application crash or in some cases execute arbitrary code with the permission of the user running such an application.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · AlpineEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
2.10%
Chance of exploitation in the next 30 days
Percentile
82%
Versus all other CVEs
30-day change
Increase +0.09 pp
From 2.01% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundOpenjpeg
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu3 products
- ghostscript< 9.26~dfsg+0-0ubuntu0.16.04.14 | < 9.26~dfsg+0-0ubuntu0.18.04.14
- openjpeg2< 2.1.2-1.1+deb9u6build0.16.04.1 | < 2.3.0-2+deb10u2build0.18.04.1 | < 2.3.1-1ubuntu4.20.04.1 | < 2.3.1-1ubuntu5
- qtwebengine-opensource-srcAll versions (No fix recorded)
Debian2 products
- openjpeg2< 2.4.0-1
- debian_linuxEOL9.0 | 10.0
Alpine1 product
- openjpeg≥ 2.0.0, < 2.3.1-r5 | ≥ 2.0.0, < 2.3.1-r6
Uclouvain1 product
- openjpeg≤ 1.5.1 | ≥ 2.0.0, < 2.4.0
4 vendors · 7 products
References
15 links
lists.debian.org/debian-lts-announce/2021/02/msg00011.htmlMailing ListX Refsource MLISTThird Party Advisory
