// For flags

CVE-2020-27841

Ubuntu Security Notice USN-5952-1

Severity Score

5.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

There's a flaw in openjpeg in versions prior to 2.4.0 in src/lib/openjp2/pi.c. When an attacker is able to provide crafted input to be processed by the openjpeg encoder, this could cause an out-of-bounds read. The greatest impact from this flaw is to application availability.

Se presenta un fallo en openjpeg en versiones anteriores a 2.4.0 en el archivo src/lib/openjp2/pi.c. Cuando un atacante es capaz de proporcionar una entrada diseñada para ser procesada por el codificador de openjpeg, esto podría causar una lectura fuera de límites. El mayor impacto de este fallo es la disponibilidad de la aplicación

An update that fixes 8 vulnerabilities is now available. This update for openjpeg2 fixes the following issues. Fixed OOB read in pi_next_lrcp, pi_next_rlcp, pi_next_rpcl, pi_next_pcrl, pi_next_rpcl, and pi_next_cprl in openmj2/pi.c. Fixed heap buffer overflow in color_apply_icc_profile in bin/common/color.c. Fixed heap buffer overflow in lib/openjp2/mqc.c, Fixed OOB read in opj_dwt_calc_explicit_stepsizes. Fixed buffer over-read in lib/openjp2/pi.c. Fixed null pointer dereference in opj_tgt_reset function in lib/openjp2/tgt.c. Fixed OOB read in opj_t2_encode_packet function in openjp2/t2.c. Fixed heap-based buffer over-read in functions opj_pi_next_rlcp, opj_pi_next_rpcl and opj_pi_next_lrcp in openjp2/pi.c.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-10-27 CVE Reserved
  • 2021-01-05 CVE Published
  • 2024-08-04 CVE Updated
  • 2025-06-19 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-122: Heap-based Buffer Overflow
  • CWE-787: Out-of-bounds Write
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Uclouvain
Search vendor "Uclouvain"
 Openjpeg
Search vendor "Uclouvain" for product "Openjpeg"
 < 2.4.0
Search vendor "Uclouvain" for product "Openjpeg" and version " < 2.4.0"
-
Affected
Fedoraproject
Search vendor "Fedoraproject"
 Fedora
Search vendor "Fedoraproject" for product "Fedora"
 32
Search vendor "Fedoraproject" for product "Fedora" and version "32"
-
Affected
Debian
Search vendor "Debian"
 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 9.0
Search vendor "Debian" for product "Debian Linux" and version "9.0"
-
Affected
Debian
Search vendor "Debian"
 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 10.0
Search vendor "Debian" for product "Debian Linux" and version "10.0"
-
Affected
Oracle
Search vendor "Oracle"
 Outside In Technology
Search vendor "Oracle" for product "Outside In Technology"
 8.5.5
Search vendor "Oracle" for product "Outside In Technology" and version "8.5.5"
-
Affected