CVE-2020-6851
HIGH severity · CVSS 7.5 · Out-of-bounds write
7.5CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)5%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products we track (3)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://access.redhat.com/errata/RHSA-2020:0262Advisory
- https://access.redhat.com/errata/RHSA-2020:0274Advisory
- https://access.redhat.com/errata/RHSA-2020:0296Advisory
- https://lists.debian.org/debian-lts-announce/2020/01/msg00025.htmlAdvisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00008.htmlAdvisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LACIIDDCKZJEPKTTFILSOSBQL7L3FC6V/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XBRMI2D3XPVWKE3V52KRBW7BJVLS5LD3/
- https://github.com/uclouvain/openjpeg/issues/1228Advisory