The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2020-18770)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote RockyLinux 9 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2024:2377 advisory.

    * zziplib: invalid memory access at zzip_disk_entry_to_file_header in mmapped.c (CVE-2020-18770)

Tenable has extracted the preceding description block directly from the RockyLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote MiracleLinux 9 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2024-7802:01 advisory.

    * zziplib: invalid memory access at zzip_disk_entry_to_file_header in mmapped.c (CVE-2020-18770)

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1755885569 advisory.

  - 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. (CVE-2020-18770)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2024-3127 advisory.

    - Fix CVE-2020-18770       Previous patch contained segfault bug       Resolves: RHEL-14966

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-2024_3127 advisory.

    * zziplib: invalid memory access at zzip_disk_entry_to_file_header in mmapped.c (CVE-2020-18770)

Tenable has extracted the preceding description block directly from the CIQ security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The version of zziplib installed on the remote host is prior to 0.13.62-12. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2024-2689 advisory.

    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. (CVE-2020-18770)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2024:0209 advisory.

    Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:

    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.

Tenable has extracted the preceding description block directly from the Tencent Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Rocky Linux 9 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-2024_2377 advisory.

    * zziplib: invalid memory access at zzip_disk_entry_to_file_header in mmapped.c (CVE-2020-18770)

Tenable has extracted the preceding description block directly from the CIQ security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
255385	Linux Distros Unpatched Vulnerability : CVE-2020-18770	Nessus	Misc.	2025/8/26	2026/11/5	medium
235532	RockyLinux 9 : zziplib (RLSA-2024:2377)	Nessus	Rocky Linux Local Security Checks	2025/5/7	2025/5/7	medium
293125	MiracleLinux 9 : zziplib-0.13.71-11.el9 (AXSA:2024-7802:01)	Nessus	Miracle Linux Local Security Checks	2026/1/20	2026/1/20	medium
360978	AlmaLinux 9.2 [TuxCare] Security Update: zziplib / zziplib-devel / zziplib-utils (ALMALINUX9.2:CLSA-2025:1755885569)	Nessus	Alma Linux Local Security Checks	2026/10/1	2026/10/1	medium
197990	Oracle Linux 8 : zziplib (ELSA-2024-3127)	Nessus	Oracle Linux Local Security Checks	2024/5/28	2025/9/9	medium
355076	Rocky Linux 8 [CIQ] Security Update: zziplib / zziplib-debuginfo / zziplib-debugsource / zziplib-devel / etc (crlsa-2024_3127)	Nessus	Rocky Linux Local Security Checks	2026/10/1	2026/10/1	medium
210092	Amazon Linux 2 : zziplib (ALAS-2024-2689)	Nessus	Amazon Linux Local Security Checks	2024/11/1	2024/12/11	medium
239866	TencentOS Server 3: zziplib (TSSA-2024:0209)	Nessus	Tencent Local Security Checks	2025/6/16	2025/11/20	medium
354409	Rocky Linux 9 [CIQ] Security Update: zziplib / zziplib-debuginfo / zziplib-debugsource / zziplib-devel / etc (crlsa-2024_2377)	Nessus	Rocky Linux Local Security Checks	2026/10/1	2026/10/1	medium

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