CVE-2023-46362 - Use After Free

Severity

55%

Complexity

18%

Confidentiality

60%

jbig2enc v0.28 was discovered to contain a heap-use-after-free via jbig2enc_auto_threshold_using_hash in src/jbig2enc.cc.

CVSS 3.1 Base Score 5.5. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H).

Demo Examples

Use After Free

CWE-416

The following example demonstrates the weakness.


               
}
free(buf3R2);

Use After Free

CWE-416

The following code illustrates a use after free error:


               
}
free(ptr);
logError("operation aborted before commit", ptr);

When an error occurs, the pointer is immediately freed. However, this pointer is later incorrectly used in the logError function.

Overview

First reported 1 year ago

2023-11-08 21:15:00

Last updated 1 year ago

2023-11-15 19:49:00

Affected Software

JBIG2 Encoder Project JBIG2 Encoder 0.28

0.28

References

https://github.com/agl/jbig2enc/issues/84

https://github.com/agl/jbig2enc

https://github.com/agl/jbig2enc/issues/84

Exploit, Issue Tracking, Vendor Advisory

https://github.com/agl/jbig2enc

Product

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