Giflib contains a double-free vulnerability that is the result of a shallow copy in GifMakeSavedImage and incorrect error handling. The conditions needed to trigger this vulnerability are difficult but may be possible.

🔗 CVE IDs covered (1)

🎯 Affected products2

• azl3 giflib 5.2.1-10 on Azure Linux 3.0
• cbl2 giflib 5.2.1-10 on CBL Mariner 2.0

✅ Remediation

KBCBL-Mariner Releases (Security Update) — fixed build 5.2.1-11

🔗 References (2)

• advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23868
• referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade