CVE-2023-46361
Zeng Yunxiang and Song Jiaxuan discovered that jbig2dec had an out-of-bounds read vulnerability in its command-line tool. An attacker could possibly use this issue to cause jbig2dec to crash, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS. (CVE-2023-46361) It was discovered that jbig2dec had an integer overflow in the jbig2_arith_iaid_ctx_new() function. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-38076)
CSIRTS triage
- What
- There is an out-of-bounds read vulnerability that can cause jbig2dec to crash.
- Who is affected
- Users of jbig2dec on Ubuntu 22.04 LTS.
- Urgency
- Remediation is necessary to prevent denial of service due to the identified vulnerabilities.
- Action
- Update jbig2dec to the latest version to mitigate the vulnerabilities.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.75% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 51% of all EPSS-scored CVEs.
Advisory coverage (1)
- unknownUSN-8582-1: jbig2dec vulnerabilitiesubuntu · 2026-07-21
External references
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