Heap corruption in UniRPC service

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• rocketsoftware unidataup to 8.2.4 inclusive
• rocketsoftware universeup to 11.3.5 inclusive
• rocketsoftware universe12.0.0 and later · up to 12.2.1 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (rapid7). Independent of NVD's CPE analysis and usually ahead of it.

• Rocket Software UniData

  • before 8.2.43.3003affected · semver

• Rocket Software UniVerse

  • before 11.3.5.1001affected · semver
  • before 12.2.1.2002affected · semver

Other highest-scoring records for the same primary product.

• CVE-2023-28503Authentication bypass in UniRPC's udadmin service
  58Plan
• CVE-2023-28502Stack buffer overflow in UniRPC's udadmin_server service
  57Plan
• CVE-2023-28507Memory exhaustion in LZ4 decompression in UniRPC daemon
  39Monitor
• CVE-2023-28504Stack buffer overflow in UniRPC library function
  39Monitor
• CVE-2023-28501Heap buffer overflow in unirpcd
  39Monitor
• CVE-2023-28506Stack buffer overflow in UniRPC service
  35Monitor

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

When data is copied, the source length is not compared with the size of the destination buffer. Excess data overwrites adjacent memory.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1char buf[256];2memcpy(buf, pkt->data, pkt->len);

1char buf[256];2if (pkt->len > sizeof(buf)) {3  return -EINVAL;4}5memcpy(buf, pkt->data, pkt->len);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.