Apache Portable Runtime: Out-of-Bounds Access (CVE-2017-12613)
Published Sources: SUSE, CVE.org
What is affected, what to do
When apr_time_exp*() or apr_os_exp_time*() functions are invoked with an invalid month field value in Apache Portable Runtime APR 1.6.2 and prior, out of bounds memory may be accessed in converting this value to an apr_time_exp_t value, potentially revealing the contents of a different static heap value or resulting in program termination, and may represent an information disclosure or denial of service vulnerability to applications which call these APR functions with unvalidated external input.
Update portable_runtime to version 1.7.0.
- Affected
- Apache Portable Runtime
eq 1.6.2 and prior..1.6.2 and prior
- Apache Portable Runtime
Not sure whether and how you are affected? Ask a question about this vulnerability
Metrics
7.1
Priority
XIEM Effective CVSS: highest available CVSS rating from NVD and vendor data.
Source: NVD, CVSS v3
7.1
CVSS v3
Severity High on the scale from 0 to 10.
Source: SUSE, CVE.org
1.8 %
EPSS score
Moderate — model estimates 1-10% exploitation likelihood.
Source: FIRST EPSS, percentile 77.9
Show all metrics
- Severity
- High
Priority (0–325)
The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first?
Read in glossary- 83.98 Methodology
Exploit maturity
An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack.
Read in glossary- no public PoC known
XIEM Effective CVSS
XIEM® is the tiered managed-security operating model from NEOSEC and a registered trademark of NEOSEC GmbH. It extends classic SIEM — the central collection, normalisation and correlation of security-relevant events — with endpoint forensics, network visibility and deception technology, and consolidates them into three building tiers: Sentry, Orchestrate and Command.
Read in glossary- 7.1 Methodology
CVSS v3
CVSS is the globally established, open standard for assessing the technical severity of a vulnerability on a scale from 0 to 10. It describes how easily a flaw can be exploited and what damage it can cause — but not how likely its actual exploitation is. CVSS and the complementary EPSS deliberately answer different questions.
Read in glossary- 7.1
EPSS score
The EPSS score is the absolute model output for an individual vulnerability: the estimated probability of real-world exploitation within the next 30 days, expressed as a value between 0 and 1 (i.e. 0 % to 100 %). A score of 0.42 means „the model estimates a 42 % chance of real-world exploitation within 30 days“.
Read in glossary- 1.8 %
- Moderate — model estimates 1-10% exploitation likelihood.
EPSS percentile
The EPSS percentile is the relative position of a vulnerability within all EPSS-scored CVEs, expressed as a value between 0 and 1. A percentile of 0.90 means „this CVE has a higher EPSS score than 90 % of all other scored CVEs“. Unlike the EPSS score, it is not a probability — but a positioning within a ranking.
Read in glossary- 77.9
- High — this CVE ranks above the median of all CVEs scored today (rank ≥ 36%).
KEV status
The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.
Read in glossary- —
- Published
Detection rules
No NEOSEC detection rule is available for this vulnerability yet.
Classification under NIS2 and CRA
Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.
NIS2
NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management.
Read in glossary- High technical severity: assess and remediate the vulnerability in vulnerability handling under Art. 21(2)(e) NIS2 and document the decision.
CRA
The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates.
Read in glossary- From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
ISO/IEC 27001
ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security.
Read in glossary- Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.
Description
When apr_time_exp*() or apr_os_exp_time*() functions are invoked with an invalid month field value in Apache Portable Runtime APR 1.6.2 and prior, out of bounds memory may be accessed in converting this value to an apr_time_exp_t value, potentially revealing the contents of a different static heap value or resulting in program termination, and may represent an information disclosure or denial of service vulnerability to applications which call these APR functions with unvalidated external input.
Source: suse_csaf, cvelistv5, NVD (NIST)
Affected products
The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.
| Affected versions | Fixed in | ||
|---|---|---|---|
| Apache Software Foundation | Apache Portable Runtime |
|
|
| apache | portable_runtime |
|
|
| redhat | jboss_core_services |
|
|
| redhat | jboss_enterprise_web_server |
|
|
| redhat | software_collections |
|
|
Vendors and products
- Apache Software Foundation Apache Portable Runtime (APR)
- Apache Software Foundation
- Debian Debian Linux
- Red Hat Redhat Enterprise Linux Desktop
- Red Hat Red Hat Enterprise Linux Extended Update Support (EUS)
- Red Hat Redhat Enterprise Linux Server
- Red Hat Redhat Enterprise Linux Server Advanced mission critical Update Support (AUS)
- Red Hat Red Hat Enterprise Linux Server (TUS)
- Red Hat Red Hat Enterprise Linux Workstation
- Red Hat Red Hat JBoss Core Services
- Red Hat RedHat JBoss Enterprise Web Server
- Red Hat Red Hat Software Collections
Affected operating systems
| Linux | debian | debian_linux | 7.0 |
| Linux | debian | debian_linux | 9.0 |
| Linux | redhat | enterprise_linux_desktop | 6.0 |
| Linux | redhat | enterprise_linux_desktop | 7.0 |
| Linux | redhat | enterprise_linux_eus | 6.7 |
| Linux | redhat | enterprise_linux_eus | 7.3 |
| Linux | redhat | enterprise_linux_eus | 7.4 |
| Linux | redhat | enterprise_linux_eus | 7.5 |
| Linux | redhat | enterprise_linux_eus | 7.6 |
| Linux | redhat | enterprise_linux_eus | 7.7 |
| Linux | redhat | enterprise_linux_server | 6.0 |
| Linux | redhat | enterprise_linux_server | 7.0 |
| Linux | redhat | enterprise_linux_server_aus | 6.4 |
| Linux | redhat | enterprise_linux_server_aus | 6.5 |
| Linux | redhat | enterprise_linux_server_aus | 6.6 |
| Linux | redhat | enterprise_linux_server_aus | 7.2 |
| Linux | redhat | enterprise_linux_server_aus | 7.3 |
| Linux | redhat | enterprise_linux_server_aus | 7.4 |
| Linux | redhat | enterprise_linux_server_aus | 7.6 |
| Linux | redhat | enterprise_linux_server_aus | 7.7 |
| Linux | redhat | enterprise_linux_server_tus | 6.6 |
| Linux | redhat | enterprise_linux_server_tus | 7.2 |
| Linux | redhat | enterprise_linux_server_tus | 7.3 |
| Linux | redhat | enterprise_linux_server_tus | 7.4 |
References & sources
- lists.debian.org[debian-lts-announce] 20171106 [SECURITY] [DLA 1162-1] apr security updateMailing list, x_refsource_MLIST, Mailing list, Third-party advisory
- access.redhat.comRHSA-2018:0316Vendor advisory, x_refsource_REDHAT, Third-party advisory
- svn.apache.orgviewvc?view=revision&revision=1807976x_refsource_CONFIRM, Issue tracking, Third-party advisory
- securitytracker.com1042004Vulnerability database, x_refsource_SECTRACK, Third-party advisory, Vulnerability database
- access.redhat.comRHSA-2017:3475Vendor advisory, x_refsource_REDHAT, Third-party advisory
- access.redhat.comRHSA-2018:0465Vendor advisory, x_refsource_REDHAT, Third-party advisory
- apache.orgdist/apr/Announcement1.x.htmlx_refsource_CONFIRM, Release notes, Vendor advisory
- access.redhat.comRHSA-2017:3270Vendor advisory, x_refsource_REDHAT, Third-party advisory
- lists.apache.org[announce] 20171023 Apache Portable Runtime APR 1.6.3, APR-util 1.6.1 and APR-iconv 1.2.2 ReleasedMailing list, x_refsource_MLIST, Issue tracking, Vendor advisory
- access.redhat.comRHSA-2017:3476Vendor advisory, x_refsource_REDHAT, Third-party advisory
- access.redhat.comRHSA-2018:1253Vendor advisory, x_refsource_REDHAT, Third-party advisory
- access.redhat.comRHSA-2017:3477Vendor advisory, x_refsource_REDHAT, Third-party advisory
- access.redhat.comRHSA-2018:0466Vendor advisory, x_refsource_REDHAT, Third-party advisory
- securityfocus.com101560Vulnerability database, x_refsource_BID, Broken link
- lists.apache.org[apr-commits] 20210816 svn commit: r1892358 - /apr/apr/branches/1.7.x/CHANGESMailing list, x_refsource_MLIST
- lists.apache.org[apr-commits] 20210820 svn commit: r49582 - /release/apr/patches/apr-1.7.0-CVE-2021-35940.patchMailing list, x_refsource_MLIST
- lists.apache.org[apr-dev] 20210823 CVE-2021-35940: Apache Portable Runtime (APR): Regression of CVE-2017-12613Mailing list, x_refsource_MLIST
- openwall.com[oss-security] 20210823 CVE-2021-35940: Apache Portable Runtime (APR): Regression of CVE-2017-12613Mailing list, x_refsource_MLIST, Mailing list, Third-party advisory
- lists.apache.org[announce] 20210823 CVE-2021-35940: Apache Portable Runtime (APR): Regression of CVE-2017-12613Mailing list, x_refsource_MLIST
- lists.apache.org[apr-dev] 20210916 Re: CVE-2021-35940: Apache Portable Runtime (APR): Regression of CVE-2017-12613Mailing list, x_refsource_MLIST
Embed badge
Show the severity and KEV status of this vulnerability on your site – with a link back here. The image is updated hourly.
<a href="https://intel.neosec.eu/en/cve/CVE-2017-12613"><img src="https://intel.neosec.eu/badge/cve/CVE-2017-12613.svg?lang=en" alt="CVE-2017-12613 – NEOSEC Intel" height="20"></a>