Bugzilla – Bug 1214577
VUL-0: CVE-2020-18770: zziplib: denial-of-service in function zzip_disk_entry_to_file_header in mmapped.c
Last modified: 2024-05-28 08:41:44 UTC
CVE-2020-18770 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. No upstream fix available. The reproducer inside the zziplib issue does not trigger an SEGV without AddressSanitizer being enabled. References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-18770 https://www.cve.org/CVERecord?id=CVE-2020-18770 https://github.com/gdraheim/zziplib/issues/69
The issue looks to be on upstream also. I create a PullRequest on the project ( see https://github.com/gdraheim/zziplib/pull/149) that fix the potential ASan error read memory due to a pointer overflow. I will wait some feedback on it, and if there aren't, I will push the patch in Factory and backport to IBS.
Fix upstream: https://github.com/gdraheim/zziplib/commit/803f49aaae16b7f2899e4769afdfc673a21fa9e8
Everything accepted, should be fixed now. Reassigning to security team. Don't hesitate to reassign to me if needed.
SUSE-SU-2024:0970-1: An update that solves two vulnerabilities and has one security fix can now be installed. Category: security (moderate) Bug References: 1154002, 1187526, 1214577 CVE References: CVE-2020-18442, CVE-2020-18770 Maintenance Incident: [SUSE:Maintenance:13903](https://smelt.suse.de/incident/13903/) Sources used: openSUSE Leap 15.5 (src): zziplib-0.13.69-150000.3.17.1 Basesystem Module 15-SP5 (src): zziplib-0.13.69-150000.3.17.1 NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
SUSE-SU-2024:0961-1: An update that solves one vulnerability can now be installed. Category: security (low) Bug References: 1214577 CVE References: CVE-2020-18770 Maintenance Incident: [SUSE:Maintenance:32896](https://smelt.suse.de/incident/32896/) Sources used: SUSE Linux Enterprise Software Development Kit 12 SP5 (src): zziplib-0.13.67-10.36.1 SUSE Linux Enterprise Workstation Extension 12 12-SP5 (src): zziplib-0.13.67-10.36.1 NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
done, closing