CVE-2020-18770
published 2023-08-22CVE-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.
PriorityP415medium5.5CVSS 3.1
AVLACLPRNUIRSUCNINAH
EPSS
0.32%
23.7th percentile
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.
Affected
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | zziplib | < zziplib 0.13.78+dfsg.1-0.1 (forky) | zziplib 0.13.78+dfsg.1-0.1 (forky) |
| gdraheim | zziplib | — | — |
| gdraheim | zziplib | >= 0 < 0.13.78+dfsg.1-0.1 | 0.13.78+dfsg.1-0.1 |
| gdraheim | zziplib | >= 0 < 0.13.78+dfsg.1-0.1 | 0.13.78+dfsg.1-0.1 |
| msrc | azl3_zziplib_0.13.74-1_on_azure_linux_3.0 | — | — |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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OSV
CVE-2020-18770: An issue was discovered in function zzip_disk_entry_to_file_header in mmapped
osv·2023-08-22·CVSS 5.5
CVE-2020-18770 [MEDIUM] CVE-2020-18770: An issue was discovered in function zzip_disk_entry_to_file_header in mmapped
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.
GHSA
GHSA-mjgv-6qmw-8jwc: An issue was discovered in function zzip_disk_entry_to_file_header in mmapped
ghsa_unreviewed·2023-08-22
CVE-2020-18770 [MEDIUM] CWE-400 GHSA-mjgv-6qmw-8jwc: An issue was discovered in function zzip_disk_entry_to_file_header in mmapped
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.
Red Hat
zziplib: invalid memory access at zzip_disk_entry_to_file_header in mmapped.c
vendor_redhat·2023-10-28·CVSS 5.5
CVE-2020-18770 [MEDIUM] CWE-119 zziplib: invalid memory access at zzip_disk_entry_to_file_header in mmapped.c
zziplib: invalid memory access at zzip_disk_entry_to_file_header in mmapped.c
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.
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.
Package: zziplib (Red Hat Enterprise Linux 7) - Out of support scope
Microsoft
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.
vendor_msrc·2023-08-08·CVSS 5.5
CVE-2020-18770 [MEDIUM] 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.
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.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
mitre: mitre
Custom
Debian
CVE-2020-18770: zziplib - An issue was discovered in function zzip_disk_entry_to_file_header in mmapped.c ...
vendor_debian·2020·CVSS 5.5
CVE-2020-18770 [MEDIUM] CVE-2020-18770: zziplib - An issue was discovered in function zzip_disk_entry_to_file_header in mmapped.c ...
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.
Scope: local
bookworm: open
bullseye: open
forky: resolved (fixed in 0.13.78+dfsg.1-0.1)
sid: resolved (fixed in 0.13.78+dfsg.1-0.1)
trixie: resolved (fixed in 0.13.78+dfsg.1-0.1)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2023-08-22
Published