Bug 2246907 (CVE-2020-18770)

Summary: CVE-2020-18770 zziplib: invalid memory access at zzip_disk_entry_to_file_header in mmapped.c
Product: [Other] Security Response Reporter: Avinash Hanwate <ahanwate>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
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Version: unspecifiedKeywords: Security
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OS: Linux   
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An invalid memory access flaw was found in the mmapped.c file's zzip_disk_entry_to_file_header function in Zziplib. This issue could allow an attacker to entice a victim into opening a specially crafted file, leading to a denial of service.
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Bug Depends On: 2253631    
Bug Blocks: 2246908    

Description Avinash Hanwate 2023-10-30 04:07:13 UTC
An issue was discovered in function zzip_disk_entry_to_file_header in mmapped.c in zziplib 0.13.69, which will lead to a denial-of-service.

https://github.com/gdraheim/zziplib/issues/69

Comment 2 TEJ RATHI 2023-12-08 11:50:51 UTC
Created zziplib tracking bugs for this issue:

Affects: fedora-all [bug 2253631]

Comment 3 errata-xmlrpc 2024-04-30 10:06:42 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:2377 https://access.redhat.com/errata/RHSA-2024:2377

Comment 4 errata-xmlrpc 2024-05-22 09:47:35 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:3127 https://access.redhat.com/errata/RHSA-2024:3127