A SEGV vulnerability exists in Artifex Software jbig2dec v0.20 and related builds, caused by an error in the jbig2_error function within jbig2.c. This vulnerability leads to a crash of the software, resulting in denial of service. The affected versions are explicitly identified as =0.19-3, =0.19-3build1, =0.19-3build2, =0.19-3ubuntu0.1, and =0.20-1build3. The CVSS vector indicates network attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, no confidentiality or integrity impact, and high impact on availability. No patch or fix information is currently available.

The vulnerability causes a segmentation fault that leads to denial of service (application crash) when triggered. There is no impact on confidentiality or integrity according to the CVSS vector. No known exploitation in the wild has been reported.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should consider limiting exposure to untrusted inputs that might trigger the vulnerability and monitor for updates from the vendor or distribution maintainers.