QPDFが、特定の不正な形式のファイルを不適切に処理することが判明しました。リモートの攻撃者がこの問題を悪用してQPDFをクラッシュさせ、サービス拒否を引き起こしたり、任意のコードを実行する可能性があります。

注意: Tenable Network Security は、前述の説明ブロックを Ubuntu セキュリティアドバイザリからすでに直接抽出しています。Tenable では、新たな問題を持ち込まずに、できる限り自動的に整理して書式設定するようにしています。

Linux/Unix 主机中安装的一个或多个程序包受到一个漏洞影响，而供应商没有提供补丁程序。

  - 在 7.0.0之前的版本中，发现 QPDF 中存在问题。在 QPDF.cc 中，存在因循环 xref 表而造成的无限循环。 (CVE-2017-18186)

请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

Linux/Unix ホストには、ベンダーが提供するパッチが利用できない脆弱性の影響を受ける複数のパッケージがインストールされています。

  - 問題が 7.0.0より前の QPDF で見つかりました。QPDF.cc の外部参照テーブルのループによる無限ループがあります。 （CVE-2017-18186）

Nessus は、ベンダーによって報告されたパッケージの存在に依存していることに注意してください。

Linux/Unix 主機上安裝了一個或多個受到弱點影響的套件，且供應商未提供可用的修補程式。

  - 在 7.0.0之前的 QPDF 中發現一個問題。無限迴圈是因為在 QPDF.cc 中循環外部參照表格所導致。 (CVE-2017-18186)

請注意，Nessus 依賴供應商報告的套件存在。

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

  - An issue was discovered in QPDF before 7.0.0. Endless     recursion causes stack exhaustion in     QPDFTokenizer::resolveLiteral() in QPDFTokenizer.cc,     related to the QPDF::resolve function in     QPDF.cc.(CVE-2015-9252)

  - An issue was discovered in QPDF before 7.0.0. There is     an infinite loop due to looping xref tables in     QPDF.cc.(CVE-2017-18186)

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 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 QPDF before 7.0.0. There is an infinite loop due to looping xref tables in     QPDF.cc. (CVE-2017-18186)

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

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

  - An issue was discovered in QPDF before 7.0.0. There is     an infinite loop due to looping xref tables in     QPDF.cc.(CVE-2017-18186)

  - libqpdf.a in QPDF 6.0.0 allows remote attackers to     cause a denial of service (infinite recursion and stack     consumption) via a crafted PDF document, related to     unparse functions, aka     qpdf-infiniteloop3.(CVE-2017-9210)

  - libqpdf.a in QPDF 6.0.0 allows remote attackers to     cause a denial of service (infinite recursion and stack     consumption) via a crafted PDF document, related to     QPDFObjectHandle::parseInternal, aka     qpdf-infiniteloop2.(CVE-2017-9209)

  - libqpdf.a in QPDF 6.0.0 allows remote attackers to     cause a denial of service (infinite recursion and stack     consumption) via a crafted PDF document, related to     releaseResolved functions, aka     qpdf-infiniteloop1.(CVE-2017-9208)

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 14.04 LTS / 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3638-1 advisory.

    It was discovered that QPDF incorrectly handled certain malformed files. A remote attacker could use this     issue to cause QPDF to crash, resulting in a denial of service, or possibly execute arbitrary code.

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.

據發現，QPDF 未正確處理某些格式錯誤的檔案。遠端攻擊者可利用此問題造成 QPDF 損毀，進而導致拒絕服務，或可能執行任意程式碼。

請注意，Tenable Network Security 已直接從 Ubuntu 安全性公告擷取前置描述區塊。Tenable 已盡量在不造成其他問題的前提下，嘗試自動清理並將其格式化。

发现 QPDF 未能正确处理某些畸形的文件。远程攻击者可以利用此问题导致 QPDF 崩溃，从而导致拒绝服务或执行任意代码。

请注意，Tenable Network Security 已直接从 Ubuntu 安全公告中提取上述描述块。Tenable 已尝试在不引入其他问题的情况下，尽可能进行自动清理和排版。

ID	Name	Product	Family	Published	Updated	Severity
109600	Ubuntu 14.04 LTS / 16.04 LTS : QPDFの脆弱性 (USN-3638-1)	Nessus	Ubuntu Local Security Checks	5/8/2018	8/27/2024	high
221030	Linux Distros 未修补的漏洞: CVE-2017-18186	Nessus	Misc.	3/4/2025	8/25/2025	medium
221030	Linux Distros のパッチ未適用の脆弱性: CVE-2017-18186	Nessus	Misc.	3/4/2025	8/25/2025	medium
221030	Linux Distros 未修補弱點：CVE-2017-18186	Nessus	Misc.	3/4/2025	8/25/2025	medium
132190	EulerOS 2.0 SP3 : qpdf (EulerOS-SA-2019-2655)	Nessus	Huawei Local Security Checks	12/18/2019	4/3/2024	medium
221030	Linux Distros Unpatched Vulnerability : CVE-2017-18186	Nessus	Misc.	3/4/2025	8/25/2025	medium
153336	EulerOS 2.0 SP2 : qpdf (EulerOS-SA-2021-2442)	Nessus	Huawei Local Security Checks	9/14/2021	9/16/2021	medium
109600	Ubuntu 14.04 LTS / 16.04 LTS : QPDF vulnerabilities (USN-3638-1)	Nessus	Ubuntu Local Security Checks	5/8/2018	8/27/2024	high
109600	Ubuntu 14.04 LTS / 16.04 LTS：QPDF 弱點 (USN-3638-1)	Nessus	Ubuntu Local Security Checks	5/8/2018	8/27/2024	high
109600	Ubuntu 14.04 LTS / 16.04 LTS：QPDF 漏洞 (USN-3638-1)	Nessus	Ubuntu Local Security Checks	5/8/2018	8/27/2024	high

Detections

Analytics

Plugins Search

high

medium

medium

medium

medium

medium

medium

high

high

high