According to the versions of the libarchive package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - An improper link resolution flaw can occur while extracting an archive leading to changing modes, times,     access control lists, and flags of a file outside of the archive. An attacker may provide a malicious     archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker     may use this flaw to gain more privileges in a system. (CVE-2021-31566)

  - An improper link resolution flaw while extracting an archive can lead to changing the access control list     (ACL) of the target of the link. An attacker may provide a malicious archive to a victim user, who would     trigger this flaw when trying to extract the archive. A local attacker may use this flaw to change the ACL     of a file on the system and gain more privileges. (CVE-2021-23177)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the libarchive package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - An improper link resolution flaw can occur while extracting an archive leading to changing modes, times,     access control lists, and flags of a file outside of the archive. An attacker may provide a malicious     archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker     may use this flaw to gain more privileges in a system. (CVE-2021-31566)

  - An improper link resolution flaw while extracting an archive can lead to changing the access control list     (ACL) of the target of the link. An attacker may provide a malicious archive to a victim user, who would     trigger this flaw when trying to extract the archive. A local attacker may use this flaw to change the ACL     of a file on the system and gain more privileges. (CVE-2021-23177)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the libarchive packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - An improper link resolution flaw while extracting an archive can lead to changing the access control list     (ACL) of the target of the link. An attacker may provide a malicious archive to a victim user, who would     trigger this flaw when trying to extract the archive. A local attacker may use this flaw to change the ACL     of a file on the system and gain more privileges. (CVE-2021-23177)

  - An improper link resolution flaw can occur while extracting an archive leading to changing modes, times,     access control lists, and flags of a file outside of the archive. An attacker may provide a malicious     archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker     may use this flaw to gain more privileges in a system. (CVE-2021-31566)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Ubuntu 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5291-1 advisory.

    It was discovered that libarchive incorrectly handled symlinks. If a user or automated system were tricked     into processing a specially crafted archive, an attacker could possibly use this issue to change modes,     times, ACLs, and flags on arbitrary files. (CVE-2021-23177, CVE-2021-31566)

    It was discovered that libarchive incorrectly handled certain RAR archives. If a user or automated system     were tricked into processing a specially crafted RAR archive, an attacker could use this issue to cause     libarchive to crash, resulting in a denial of service, or possibly execute arbitrary code.
    (CVE-2021-36976)

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

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

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:0892 advisory.

    The libarchive programming library can create and read several different streaming archive formats,     including GNU tar, cpio, and ISO 9660 CD-ROM images. Libarchive is used notably in the bsdtar utility,     scripting language bindings such as python-libarchive, and several popular desktop file managers.

    Security Fix(es):

    * libarchive: extracting a symlink with ACLs modifies ACLs of target (CVE-2021-23177)

    * libarchive: symbolic links incorrectly followed when changing modes, times, ACL and flags of a file     while extracting an archive (CVE-2021-31566)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

The remote Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2022:0892 advisory.

  - An improper link resolution flaw while extracting an archive can lead to changing the access control list     (ACL) of the target of the link. An attacker may provide a malicious archive to a victim user, who would     trigger this flaw when trying to extract the archive. A local attacker may use this flaw to change the ACL     of a file on the system and gain more privileges. (CVE-2021-23177)

  - An improper link resolution flaw can occur while extracting an archive leading to changing modes, times,     access control lists, and flags of a file outside of the archive. An attacker may provide a malicious     archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker     may use this flaw to gain more privileges in a system. (CVE-2021-31566)

Note that Nessus has not tested for these issues 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 multiple vulnerabilities as referenced in the TSSA-2022:0019 advisory.

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

    CVE-2019-1000019:
    libarchive version commit bf9aec176c6748f0ee7a678c5f9f9555b9a757c1 onwards (release v3.0.2 onwards)     contains a CWE-125: Out-of-bounds Read vulnerability in 7zip decompression,     archive_read_support_format_7zip.c, header_bytes() that can result in a crash (denial of service). This     attack appears to be exploitable via the victim opening a specially crafted 7zip file.

    CVE-2019-1000020:
    libarchive version commit 5a98dcf8a86364b3c2c469c85b93647dfb139961 onwards (version v2.8.0 onwards)     contains a CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in ISO9660     parser, archive_read_support_format_iso9660.c, read_CE()/parse_rockridge() that can result in DoS by     infinite loop. This attack appears to be exploitable via the victim opening a specially crafted ISO9660     file.

    CVE-2019-18408:
    archive_read_format_rar_read_data in archive_read_support_format_rar.c in libarchive before 3.4.0 has a     use-after-free in a certain ARCHIVE_FAILED situation, related to Ppmd7_DecodeSymbol.

    CVE-2019-19221:
    In Libarchive 3.4.0, archive_wstring_append_from_mbs in archive_string.c has an out-of-bounds read because     of an incorrect mbrtowc or mbtowc call. For example, bsdtar crashes via a crafted archive.

    CVE-2021-23177:
    ** RESERVED ** This candidate has been reserved by an organization or individual that will use it when     announcing a new security problem. When the candidate has been publicized, the details for this candidate     will be provided.

    CVE-2021-31566:
    ** RESERVED ** This candidate has been reserved by an organization or individual that will use it when     announcing a new security problem. When the candidate has been publicized, the details for this candidate     will be provided.

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

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

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

  - An improper link resolution flaw while extracting an archive can lead to changing the access control list     (ACL) of the target of the link. An attacker may provide a malicious archive to a victim user, who would     trigger this flaw when trying to extract the archive. A local attacker may use this flaw to change the ACL     of a file on the system and gain more privileges. (CVE-2021-23177)

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

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
160014	EulerOS 2.0 SP10 : libarchive (EulerOS-SA-2022-1509)	Nessus	Huawei Local Security Checks	2022/4/20	2023/3/21	high
160604	EulerOS Virtualization 2.9.0 : libarchive (EulerOS-SA-2022-1631)	Nessus	Huawei Local Security Checks	2022/5/5	2023/3/21	high
165931	EulerOS Virtualization 3.0.6.0 : libarchive (EulerOS-SA-2022-2568)	Nessus	Huawei Local Security Checks	2022/10/10	2022/11/29	high
158134	Ubuntu 20.04 LTS : libarchive vulnerabilities (USN-5291-1)	Nessus	Ubuntu Local Security Checks	2022/2/17	2024/8/27	high
158952	RHEL 8 : libarchive (RHSA-2022:0892)	Nessus	Red Hat Local Security Checks	2022/3/15	2024/11/7	high
184595	Rocky Linux 8 : libarchive (RLSA-2022:0892)	Nessus	Rocky Linux Local Security Checks	2023/11/6	2023/11/6	high
239805	TencentOS Server 3: libarchive (TSSA-2022:0019)	Nessus	Tencent Local Security Checks	2025/6/16	2025/11/20	high
248627	Linux Distros Unpatched Vulnerability : CVE-2021-23177	Nessus	Misc.	2025/8/12	2025/8/12	high

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