{"id":"UBUNTU-CVE-2023-45663","details":"stb_image is a single file MIT licensed library for processing images. The stbi__getn function reads a specified number of bytes from context (typically a file) into the specified buffer. In case the file stream points to the end, it returns zero. There are two places where its return value is not checked: In the `stbi__hdr_load` function and in the `stbi__tga_load` function. The latter of the two is likely more exploitable as an attacker may also control the size of an uninitialized buffer.","modified":"2026-01-20T18:09:58.030620Z","published":"2023-10-21T00:15:00Z","upstream":["CVE-2023-45663"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-45663"},{"type":"REPORT","url":"https://securitylab.github.com/advisories/GHSL-2023-145_GHSL-2023-151_stb_image_h/"},{"type":"REPORT","url":"https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_image.h#L5936C10-L5936C20"},{"type":"REPORT","url":"https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_image.h#L7221"},{"type":"REPORT","url":"https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_image.h#L1664"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-45663"}],"affected":[{"package":{"name":"libstb","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libstb@0.0~git20190817.1.052dce1-1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20190817.1.052dce1-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.0~git20190817.1.052dce1-1","binary_name":"libstb-dev"},{"binary_version":"0.0~git20190817.1.052dce1-1","binary_name":"libstb0"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-45663.json"}},{"package":{"name":"libstb","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libstb@0.0~git20210910.af1a5bc+ds-1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20200713.b42009b+ds-1","0.0~git20210910.af1a5bc+ds-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.0~git20210910.af1a5bc+ds-1","binary_name":"libstb-dev"},{"binary_version":"0.0~git20210910.af1a5bc+ds-1","binary_name":"libstb0"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-45663.json"}},{"package":{"name":"libstb","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libstb@0.0~git20230129.5736b15+ds-1.2?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20230129.5736b15+ds-1","0.0~git20230129.5736b15+ds-1.1","0.0~git20230129.5736b15+ds-1.2"],"ecosystem_specific":{"binaries":[{"binary_version":"0.0~git20230129.5736b15+ds-1.2","binary_name":"libstb-dev"},{"binary_version":"0.0~git20230129.5736b15+ds-1.2","binary_name":"libstb0t64"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-45663.json"}},{"package":{"name":"libstb","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/libstb@0.0~git20241109.5c20573+ds-1?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20240715.f7f20f39fe4f+ds-1","0.0~git20241109.5c20573+ds-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.0~git20241109.5c20573+ds-1","binary_name":"libstb-dev"},{"binary_version":"0.0~git20241109.5c20573+ds-1","binary_name":"libstb0t64"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-45663.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}