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.

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.

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 remote Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2022:0019 advisory.

    Package updates are available for Alibaba Cloud Linux 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 Alibaba Cloud 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 version of F5 Networks BIG-IP installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the K000140961 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)

Tenable has extracted the preceding description block directly from the F5 Networks BIG-IP security advisory.

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

An update of the libarchive package has been released.

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 remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3202 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-3202-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                      Sylvain Beucler     November 22, 2022                             https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : libarchive     Version        : 3.3.3-4+deb10u2     CVE ID         : CVE-2019-19221 CVE-2021-23177 CVE-2021-31566     Debian Bug     : 945287 1001986 1001990

    Three issues have been found in libarchive, a multi-format archive and     compression library.

    CVE-2019-19221

        out-of-bounds read because of an incorrect mbrtowc or mbtowc call

    CVE-2021-23177

        extracting a symlink with ACLs modifies ACLs of target

    CVE-2021-31566

        symbolic links incorrectly followed when changing modes, times,         ACL and flags of a file while extracting an archive


    For Debian 10 buster, these problems have been fixed in version     3.3.3-4+deb10u2.

    We recommend that you upgrade your libarchive packages.

    For the detailed security status of libarchive please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/libarchive

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

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

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

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 SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2022:3393-1 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)

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

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2022:3306-1 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)

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

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

  - 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)

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.

The remote Debian 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-2987 advisory.

    Three issues have been found in libarchive, a multi-format archive and compression library. CVE-2021-31566     symbolic links incorrectly followed when changing modes, times, ACL and flags of a file while extracting     an archive CVE-2021-23177 extracting a symlink with ACLs modifies ACLs of target CVE-2019-19221 out-of-     bounds read because of an incorrect mbrtowc or mbtowc call For Debian 9 stretch, these problems have been     fixed in version 3.2.2-2+deb9u3. We recommend that you upgrade your libarchive packages. For the detailed     security status of libarchive please refer to its security tracker page at: https://security-     tracker.debian.org/tracker/libarchive Further information about Debian LTS security advisories, how to     apply these updates to your system and frequently asked questions can be found at:
    https://wiki.debian.org/LTS

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

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

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 packages 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.

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

    - Do not follow symlinks when processing the fixup list (CVE-2021-31566)

Tenable has extracted the preceding description block directly from the Oracle 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 CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2022:0892 advisory.

  - 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)

Note that Nessus has not tested for this issue 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 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.

ID	Name	Product	Family	Severity
248627	Linux Distros Unpatched Vulnerability : CVE-2021-23177	Nessus	Misc.	high
239805	TencentOS Server 3: libarchive (TSSA-2022:0019)	Nessus	Tencent Local Security Checks	high
236476	Alibaba Cloud Linux 3 : 0019: libarchive (ALINUX3-SA-2022:0019)	Nessus	Alibaba Cloud Linux Local Security Checks	high
206698	F5 Networks BIG-IP : libarchive vulnerability (K000140961)	Nessus	F5 Networks Local Security Checks	high
204626	Photon OS 3.0: Libarchive PHSA-2022-3.0-0447	Nessus	PhotonOS Local Security Checks	high
203158	Photon OS 4.0: Libarchive PHSA-2022-4.0-0246	Nessus	PhotonOS Local Security Checks	high
184595	Rocky Linux 8 : libarchive (RLSA-2022:0892)	Nessus	Rocky Linux Local Security Checks	high
168147	Debian dla-3202 : bsdcpio - security update	Nessus	Debian Local Security Checks	high
165931	EulerOS Virtualization 3.0.6.0 : libarchive (EulerOS-SA-2022-2568)	Nessus	Huawei Local Security Checks	high
165499	SUSE SLED15 / SLES15 Security Update : libarchive (SUSE-SU-2022:3393-1)	Nessus	SuSE Local Security Checks	high
165252	SUSE SLED15 / SLES15 Security Update : libarchive (SUSE-SU-2022:3306-1)	Nessus	SuSE Local Security Checks	high
163159	EulerOS Virtualization 2.10.1 : libarchive (EulerOS-SA-2022-2055)	Nessus	Huawei Local Security Checks	high
163158	EulerOS Virtualization 2.10.0 : libarchive (EulerOS-SA-2022-2027)	Nessus	Huawei Local Security Checks	high
160604	EulerOS Virtualization 2.9.0 : libarchive (EulerOS-SA-2022-1631)	Nessus	Huawei Local Security Checks	high
160594	EulerOS Virtualization 2.9.1 : libarchive (EulerOS-SA-2022-1608)	Nessus	Huawei Local Security Checks	high
160408	Debian DLA-2987-1 : libarchive - LTS security update	Nessus	Debian Local Security Checks	high
160014	EulerOS 2.0 SP10 : libarchive (EulerOS-SA-2022-1509)	Nessus	Huawei Local Security Checks	high
160001	EulerOS 2.0 SP10 : libarchive (EulerOS-SA-2022-1490)	Nessus	Huawei Local Security Checks	high
159790	EulerOS 2.0 SP9 : libarchive (EulerOS-SA-2022-1430)	Nessus	Huawei Local Security Checks	high
159778	EulerOS 2.0 SP9 : libarchive (EulerOS-SA-2022-1451)	Nessus	Huawei Local Security Checks	high
159258	EulerOS 2.0 SP8 : libarchive (EulerOS-SA-2022-1353)	Nessus	Huawei Local Security Checks	high
158956	Oracle Linux 8 : libarchive (ELSA-2022-0892)	Nessus	Oracle Linux Local Security Checks	high
158953	CentOS 8 : libarchive (CESA-2022:0892)	Nessus	CentOS Local Security Checks	high
158952	RHEL 8 : libarchive (RHSA-2022:0892)	Nessus	Red Hat Local Security Checks	high
158134	Ubuntu 20.04 LTS : libarchive vulnerabilities (USN-5291-1)	Nessus	Ubuntu Local Security Checks	high

Detections

Analytics

CVE-2021-23177

high

Tenable Plugins

high

high

high

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high

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