Description
Heap-based buffer overflow in ultra.c in LibVNCClient in LibVNCServer before 0.9.11 allows remote servers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted FramebufferUpdate message with the Ultra type tile, such that the LZO payload decompressed length exceeds what is specified by the tile dimensions.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://www.securityfocus.com/bid/95170 ↗
- https://github.com/LibVNC/libvncserver/pull/137 ↗
- http://www.debian.org/security/2017/dsa-3753 ↗
- https://security.gentoo.org/glsa/201702-24 ↗
- https://github.com/LibVNC/libvncserver/releases/tag/LibVNCServer-0.9.11 ↗
- https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html ↗
- https://usn.ubuntu.com/4587-1/ ↗