AGL agl-service-can-low-level thru 17.1.12 contains a stack buffer overflow in the uds-c library. The senddiagnosticrequest function in uds.c allocates a 6-byte stack buffer (MAXDIAGNOSTICPAYLOADSIZE=6) but copies up to 7 bytes (MAXUDSREQUESTPAYLOADLENGTH=7) via memcpy at an offset of 1+pidlength (2-3 bytes), resulting in 1-4 bytes of controlled stack overflow. The payloadlength field (uint8t) has no bounds check against the destination buffer. On 32-bit ARM automotive ECUs without stack canaries, this can lead to return address overwrite and RCE.

AGL app-framework-binder (afb-daemon) through v19.90.0 contains a privilege escalation vulnerability in the supervision Do command. The onsupervisioncall function in src/afb-supervision.c explicitly nullifies the request credentials by calling afbcontextchangecred(&xreq->context, NULL) before dispatching an attacker-controlled API call via xapi->itf->call(xapi->closure, xreq). The NULL propagation chain through afb-context.c:110 (context->credentials = afbcredaddref(NULL)) and afb-cred.c:163 (returns NULL when cred is NULL) confirms that credentials are zeroed before the target API executes. The attacker controls both api and verb parameters via JSON input, allowing execution of any registered API with a NULL credential context. APIs that rely on context->credentials for authorization decisions may fail open when receiving NULL credentials, enabling privilege escalation. This vulnerability was introduced in commit abbb4599f0b921c6f434b6bd02bcfb277eecf745 on 2018-02-14.

AGL app-framework-main thru 17.1.12 contains a Zip Slip path traversal vulnerability (CWE-22) combined with a TOCTOU race condition (CWE-367) in the widget installation flow. The isvalidfilename function in wgtpkg-zip.c validates ZIP entry names but does not check for dot notation directory traversal sequences it only blocks absolute paths. The zread extraction function uses openat(workdirfd, filename, OCREAT) which resolves dot notation values relative to the work directory, allowing files to be written anywhere on the filesystem. Critically, in function installwidget in file wgtpkg-install.c, extraction via zread occurs BEFORE signature verification via checkallsignatures. Even if signature verification fails, the error cleanup (removeworkdir) only deletes the temporary work directory files written outside via path traversal persist permanently.

AGL agl-service-can-low-level thru 17.1.12 contains a heap buffer over-read in the isotp-c library. In isotpcontinuereceive (receive.c:87-89), the payloadlength for a Single Frame is extracted from a 4-bit nibble in the CAN frame data, yielding values 0-15. However, a standard CAN frame is only 8 bytes, with payload starting at data[1] (7 bytes available). When payloadlength exceeds the available data (e.g., nibble=15 but only 7 payload bytes exist), memcpy(message.payload, &data[1], payloadlength) reads up to 8 bytes past the end of the data buffer.