jbig2_add_page in jbig2enc.cc in libjbig2enc.a in jbig2enc 0.29 allows remote attackers to cause a denial of service (use-after-free) or pos

Affected versions

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

• jbig2enc project jbig2enc0.29

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Other highest-scoring records for the same primary product.

• CVE-2023-46363jbig2enc v0.28 was discovered to contain a SEGV via jbig2_add_page in src/jbig2enc.cc:512.
  22Monitor
• CVE-2023-46362jbig2enc v0.28 was discovered to contain a heap-use-after-free via jbig2enc_auto_threshold_using_hash in src/jbig2enc.cc.
  22Monitor

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

Root cause

After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.

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

1free(dev->buf);2/* ... another thread is still running ... */3process(dev->buf);

1lock(&dev->lock);2free(dev->buf);3dev->buf = NULL;4unlock(&dev->lock);

Attack context

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

MITRE has no CAPEC/ATT&CK mapping for this CWE.