SB2020020535 - Heap-based buffer overflow in openjpeg (Alpine package)
Published: February 5, 2020
Security Bulletin ID
SB2020020535
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Heap-based buffer overflow (CVE-ID: CVE-2020-6851)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the opj_t1_clbl_decode_processor() function in libopenjp2.so. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=570efe74c1b275bfb920f1434d2a877123df4fcc
- https://git.alpinelinux.org/aports/commit/?id=61851c5e9528fc803ee3dff5431d76482e125ba3
- https://git.alpinelinux.org/aports/commit/?id=86f2db7e3bb8c5fe41cfdab6eb9e12d3f0288408
- https://git.alpinelinux.org/aports/commit/?id=a60544e51180dade6c8e710f1bfd7060618ede11
- https://git.alpinelinux.org/aports/commit/?id=d3cf817a7725469c0dc61da3cdb79395f0f951d2