Netpbm before 10.86.51, 11.02.30, and 11.15.08 Heap Overflow via jbigtopnm

Summary

Netpbm before 10.86.51, 11.x before 11.02.30, and 11.03 before 11.15.08 contains an integer overflow in jbigtopnm that causes heap buffer overflow when computing output buffer size. Attackers can supply a crafted multi-plane JBIG file with large header dimensions so jbg_dec_merge_planes() overflows the undersized buffer, causing crashes or potentially code execution.

Remediation

1. Inventory every Netpbm Netpbm deployment, including staging.
2. Upgrade Netpbm Netpbm to the fixed version for your release line, listed under Affected versions.
3. Confirm the running version after the upgrade.

References

• Patchhttps://sourceforge.net/p/netpbm/code/5324/
• Advisoryhttps://www.vulncheck.com/advisories/netpbm-before-10.86.51-11.02.30-and-11.15.08-heap-overflow-via-jbigtopnm
• Referencehttps://svn.code.sf.net/p/netpbm/code/!svn/bc/5323/trunk/converter/other/jbig/jbigtopnm.c
• Referencehttps://svn.code.sf.net/p/netpbm/code/!svn/bc/5357/advanced/doc/HISTORY
• Referencehttps://svn.code.sf.net/p/netpbm/code/!svn/bc/5358/stable/doc/HISTORY
• Referencehttps://svn.code.sf.net/p/netpbm/code/!svn/bc/5371/super_stable/doc/HISTORY