Openjpeg
CVE-2020-6851
HIGH
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
1DescriptionNVD
OpenJPEG through 2.3.1 has a heap-based buffer overflow in opj_t1_clbl_decode_processor in openjp2/t1.c because of lack of opj_j2k_update_image_dimensions validation.
AnalysisAI
OpenJPEG through 2.3.1 has a heap-based buffer overflow in opj_t1_clbl_decode_processor in openjp2/t1.c because of lack of opj_j2k_update_image_dimensions validation. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
Technical ContextAI
This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. OpenJPEG through 2.3.1 has a heap-based buffer overflow in opj_t1_clbl_decode_processor in openjp2/t1.c because of lack of opj_j2k_update_image_dimensions validation. Affected products include: Uclouvain Openjpeg, Fedoraproject Fedora, Debian Debian Linux, Redhat Enterprise Linux, Redhat Enterprise Linux Desktop. Version information: through 2.3.1.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).
Stack-based buffer overflow in OpenJPEG before 1.5.2 allows remote attackers to have unspecified impact via unknown vect
A size-validation issue was discovered in opj_j2k_write_sot in lib/openjp2/j2k.c in OpenJPEG 2.2.0. Rated high severity
opj_t1_clbl_decode_processor in openjp2/t1.c in OpenJPEG 2.3.1 through 2020-01-28 has a heap-based buffer overflow in th
convert.c in OpenJPEG before 2.1.2 allows remote attackers to cause a denial of service (NULL pointer dereference and ap
Integer overflow in the opj_pi_create_decode function in pi.c in OpenJPEG allows remote attackers to execute arbitrary c
A buffer overflow in OpenJPEG 2.1.1 causes arbitrary code execution when parsing a crafted image. Rated high severity (C
Heap-based buffer overflow in OpenJPEG 1.5.0 and earlier allows remote attackers to cause a denial of service (applicati
Heap-based buffer overflow vulnerability in the opj_mqc_byteout function in mqc.c in OpenJPEG before 2.2.0 allows remote
Floating Point Exception (aka FPE or divide by zero) in opj_pi_next_cprl function in openjp2/pi.c:523 in OpenJPEG 2.1.2.
There is a NULL Pointer Access in function imagetopnm of convert.c:1943(jp2) of OpenJPEG 2.1.2. Rated high severity (CVS
There is a NULL pointer dereference in function imagetobmp of convertbmp.c:980 of OpenJPEG 2.1.2. Rated high severity (C
Division-by-zero vulnerabilities in the functions pi_next_pcrl, pi_next_cprl, and pi_next_rpcl in lib/openjp3d/pi.c in O
Same weakness CWE-787 – Out-of-bounds Write
View allSame technique Buffer Overflow
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External POC / Exploit Code
Leaving vuln.today