| Project | docker-image|docker.io/scopear/docker-nginx |
|---|---|
| Path | docker.io/scopear/docker-nginx:1.12.3_0fba57b.154/scopear/docker-nginx |
| Package Manager | apk |
Out-of-bounds Write
high severity
Exploit: Not Defined
Detailed paths
NVD Description
Note: Versions mentioned in the description apply only to the upstream zlib package and not the zlib package as distributed by Alpine.
See How to fix? for Alpine:3.24 relevant fixed versions and status.
zlib versions 1.3.1.2 through 1.3.2 contain a heap buffer overflow vulnerability in the gz_vacate() function when processing non-blocking gzwrite() operations with stale external buffer pointers. Attackers can trigger the overflow by calling gzprintf() or gzvprintf() after a write stall, causing an unchecked memmove() to write beyond the internal input buffer boundary.
Remediation
Upgrade Alpine:3.24 zlib to version 1.3.2-r1 or higher.
References
- https://gist.github.com/thesmartshadow/e0b9481792afb7c31e86fee1ff084490
- https://github.com/madler/zlib
- https://github.com/madler/zlib/blob/v1.3.2/gzwrite.c#L393
- https://www.vulncheck.com/advisories/zlib-1.3.1.2-through-1.3.2-heap-buffer-overflow-via-gz-vacate