SB2026030406 - Multiple vulnerabilities in IBM Observability with Instana
Published: March 4, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 secuirty vulnerabilities.
1) Out-of-bounds read (CVE-ID: CVE-2025-5318)
The vulnerability allows a remote user to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the sftp_handle() function. A remote user can trigger an out-of-bounds read error and read contents of memory on the system.
2) Integer overflow (CVE-ID: CVE-2025-4877)
The vulnerability allows a local user to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow within the bin_to_base64() function in base64.c. A local user can trigger an integer overflow and execute arbitrary code on the target system.
Note, the vulnerability can be exploited only via the ssh_get_fingerprint_hash() function on 32-bit builds in case the API is (mis)used and a libssh consumer passes in an unexpectedly large input buffer.
3) Resource exhaustion (CVE-ID: CVE-2025-64329)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists in CRI Attach implementation due to goroutine leaks. A local user can trigger resource exhaustion and perform a denial of service (DoS) attack against the host.
4) Out-of-bounds read (CVE-ID: CVE-2025-64720)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the png_image_read_composite() function when processing palette images with PNG_FLAG_OPTIMIZE_ALPHA enabled. A remote attacker can pass a specially crafted image file to the application, trigger an out-of-bounds read error and read contents of memory on the system.
5) Out-of-bounds write (CVE-ID: CVE-2026-22184)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input within the TGZfname() function. A remote attacker can trick the victim into opening a specially crafted file, trigger an out-of-bounds write and execute arbitrary code on the target system.
6) Heap-based buffer overflow (CVE-ID: CVE-2025-65018)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the png_image_finish_read() function when processing 16-bit interlaced PNGs with 8-bit output format. A remote attacker can pass a specially crafted image file to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.