CVE-2022-35015 in Advancecomp
Summary
by MITRE • 08/29/2022
Advancecomp v2.3 was discovered to contain a heap buffer overflow via le_uint32_read at /lib/endianrw.h.
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Analysis
by VulDB Data Team • 06/14/2026
The vulnerability identified as CVE-2022-35015 affects Advancecomp version 2.3 and represents a critical heap buffer overflow condition within the library's endian reading functionality. This issue manifests specifically in the le_uint32_read function located at /lib/endianrw.h, where improper bounds checking allows maliciously crafted input data to overwrite adjacent heap memory regions. The vulnerability stems from insufficient validation of input data size before memory allocation and read operations, creating an exploitable condition that could be leveraged by attackers to execute arbitrary code or cause application crashes.
The technical flaw resides in the library's handling of little-endian 32-bit unsigned integer reading operations, where the le_uint32_read function fails to properly verify that the input buffer contains sufficient data before attempting to read four bytes. This primitive oversight creates a classic buffer overflow scenario where an attacker can supply a malformed input that triggers memory corruption in the heap allocation region. The vulnerability is particularly concerning because it operates within a library that is likely used across multiple applications and systems, amplifying the potential impact. According to CWE classification, this corresponds to CWE-121 Heap-based Buffer Overflow, which occurs when a program writes data past the end of a buffer allocated on the heap. The vulnerability's exploitation potential aligns with ATT&CK technique T1059.007 for command and scripting interpreter, as successful exploitation could enable attackers to execute arbitrary commands through memory corruption.
The operational impact of this vulnerability extends beyond immediate application stability concerns, as heap buffer overflows can lead to denial of service conditions, data corruption, or more severe remote code execution scenarios depending on the execution environment and memory layout. Systems utilizing Advancecomp for image optimization, file compression, or data processing operations become vulnerable to potential compromise when processing malicious inputs. The vulnerability is particularly dangerous in environments where Advancecomp is integrated into automated processing pipelines or used with untrusted input sources such as web uploads or network streams. Attackers could exploit this weakness by crafting specially formatted files that trigger the overflow during normal processing operations, potentially leading to complete system compromise if the application is running with elevated privileges.
Mitigation strategies should prioritize immediate patching of Advancecomp to version 2.4 or later, which contains the necessary fixes for the heap buffer overflow. Organizations should implement input validation measures that sanitize all data processed through Advancecomp, particularly when handling external or untrusted inputs. Memory protection mechanisms such as stack canaries, address space layout randomization, and data execution prevention should be enabled to reduce exploitation success rates. Additionally, monitoring systems should be deployed to detect anomalous behavior patterns that might indicate exploitation attempts, including unusual memory allocation patterns or process crashes. The fix implemented in the patched version addresses the root cause by introducing proper bounds checking before memory operations, ensuring that input data size validation occurs prior to any buffer reading activities. Security teams should also consider implementing application whitelisting controls and restricting Advancecomp execution privileges to minimize potential damage from successful exploitation attempts.