Out-of-bounds Write Affecting libstb package, versions *
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Test your applications- Snyk ID SNYK-DEBIAN12-LIBSTB-6023949
- published 22 Oct 2023
- disclosed 21 Oct 2023
Introduced: 21 Oct 2023
CVE-2023-45677 Open this link in a new tabHow to fix?
There is no fixed version for Debian:12 libstb.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libstb package and not the libstb package as distributed by Debian.
See How to fix? for Debian:12 relevant fixed versions and status.
stb_vorbis is a single file MIT licensed library for processing ogg vorbis files. A crafted file may trigger out of bounds write in f->vendor[len] = (char)'\0';. The root cause is that if len read in start_decoder is a negative number and setup_malloc successfully allocates memory in that case, but memory write is done with a negative index len. Similarly if len is INT_MAX the integer overflow len+1 happens in f->vendor = (char*)setup_malloc(f, sizeof(char) * (len+1)); and f->comment_list[i] = (char*)setup_malloc(f, sizeof(char) * (len+1));. This issue may lead to code execution.
References
- https://security-tracker.debian.org/tracker/CVE-2023-45677
- https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_vorbis.c#L3652-L3658
- https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_vorbis.c#L3653
- https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_vorbis.c#L3658
- https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_vorbis.c#L3670C7-L3670C75
- https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_vorbis.c#L950-L961
- https://securitylab.github.com/advisories/GHSL-2023-145_GHSL-2023-151_stb_image_h/