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
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.
- Published
- Oct 23, 2017
- Updated
- Jun 16, 2026
- EPSS
- 1.7% · 77th percentile
- CWE
- CWE-125
Sign in to follow · You’ll be notified if a followed record enters KEV, gets an exploit or is updated.
Report tools
Action score
29
Monitor
Low priority for now.
- CVSS
- 28 / 40 · 7.1 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 1.7%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| apache | portable runtime | cpe:2.3:a:apache:portable_runtime |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
| redhat | jboss core services | cpe:2.3:a:redhat:jboss_core_services |
| redhat | jboss enterprise web server | cpe:2.3:a:redhat:jboss_enterprise_web_server |
| redhat | software collections | cpe:2.3:a:redhat:software_collections |
| redhat | enterprise linux desktop | cpe:2.3:o:redhat:enterprise_linux_desktop |
| redhat | enterprise linux eus | cpe:2.3:o:redhat:enterprise_linux_eus |
| redhat | enterprise linux server | cpe:2.3:o:redhat:enterprise_linux_server |
| redhat | enterprise linux server aus | cpe:2.3:o:redhat:enterprise_linux_server_aus |
| redhat | enterprise linux server tus | cpe:2.3:o:redhat:enterprise_linux_server_tus |
| redhat | enterprise linux workstation | cpe:2.3:o:redhat:enterprise_linux_workstation |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- apache portable runtimebefore 1.7.0
- debian debian linux7.0
- debian debian linux9.0
- redhat enterprise linux desktop6.0
- redhat enterprise linux desktop7.0
- redhat enterprise linux eus6.7
- redhat enterprise linux eus7.3
- redhat enterprise linux eus7.4
- redhat enterprise linux eus7.5
- redhat enterprise linux eus7.6
- redhat enterprise linux eus7.7
- redhat enterprise linux server6.0
- redhat enterprise linux server7.0
- redhat enterprise linux server aus6.4
- redhat enterprise linux server aus6.5
- redhat enterprise linux server aus6.6
- redhat enterprise linux server aus7.2
- redhat enterprise linux server aus7.3
- redhat enterprise linux server aus7.4
- redhat enterprise linux server aus7.6
Versions reported by the vendor
Affected version ranges reported by the assigning authority (apache). Independent of NVD's CPE analysis and usually ahead of it.
Apache Software Foundation Apache Portable Runtime
- 1.6.2 and prioraffected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | apr | before 1.6.3-1 | 1.6.3-1 |
| Debian:7 | apr | before 1.4.6-3+deb7u2 | 1.4.6-3+deb7u2 |
| Debian:9 | apr | before 1.5.2-5+deb9u1 | 1.5.2-5+deb9u1 |
| Red Hat:enterprise_linux:6::client | apr | before 0:1.3.9-5.el6_9.1 | 0:1.3.9-5.el6_9.1 |
| Red Hat:enterprise_linux:6::client | apr-debuginfo | before 0:1.3.9-5.el6_9.1 | 0:1.3.9-5.el6_9.1 |
| Red Hat:enterprise_linux:6::client | apr-devel | before 0:1.3.9-5.el6_9.1 | 0:1.3.9-5.el6_9.1 |
| Red Hat:enterprise_linux:7::client | apr | before 0:1.4.8-3.el7_4.1 | 0:1.4.8-3.el7_4.1 |
| Red Hat:enterprise_linux:7::client | apr-debuginfo | before 0:1.4.8-3.el7_4.1 | 0:1.4.8-3.el7_4.1 |
| Red Hat:enterprise_linux:7::client | apr-devel | before 0:1.4.8-3.el7_4.1 | 0:1.4.8-3.el7_4.1 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-httpd | before 0:2.4.23-125.jbcs.el6 | 0:2.4.23-125.jbcs.el6 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-httpd-debuginfo | before 0:2.4.23-125.jbcs.el6 | 0:2.4.23-125.jbcs.el6 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-httpd-devel | before 0:2.4.23-125.jbcs.el6 | 0:2.4.23-125.jbcs.el6 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-httpd-libs | before 0:2.4.23-125.jbcs.el6 | 0:2.4.23-125.jbcs.el6 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-httpd-manual | before 0:2.4.23-125.jbcs.el6 | 0:2.4.23-125.jbcs.el6 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-httpd-selinux | before 0:2.4.23-125.jbcs.el6 | 0:2.4.23-125.jbcs.el6 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-httpd-tools | before 0:2.4.23-125.jbcs.el6 | 0:2.4.23-125.jbcs.el6 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-mod_bmx | before 0:0.9.6-15.GA.jbcs.el6 | 0:0.9.6-15.GA.jbcs.el6 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-mod_bmx-debuginfo | before 0:0.9.6-15.GA.jbcs.el6 | 0:0.9.6-15.GA.jbcs.el6 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-mod_cluster-native | before 0:1.3.8-1.Final_redhat_1.jbcs.el6 | 0:1.3.8-1.Final_redhat_1.jbcs.el6 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-mod_cluster-native-debuginfo | before 0:1.3.8-1.Final_redhat_1.jbcs.el6 | 0:1.3.8-1.Final_redhat_1.jbcs.el6 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-mod_ldap | before 0:2.4.23-125.jbcs.el6 | 0:2.4.23-125.jbcs.el6 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-mod_proxy_html | before 1:2.4.23-125.jbcs.el6 | 1:2.4.23-125.jbcs.el6 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-mod_session | before 0:2.4.23-125.jbcs.el6 | 0:2.4.23-125.jbcs.el6 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-mod_ssl | before 1:2.4.23-125.jbcs.el6 | 1:2.4.23-125.jbcs.el6 |
+96
Same product
apache: all recordsOther highest-scoring records for the same primary product.
- CVE-2022-28331Apache Portable Runtime (APR): Windows out-of-bounds write in apr_socket_sendv function39Monitor
- CVE-2022-24963Apache Portable Runtime (APR): out-of-bound writes in the apr_encode family of functions39Monitor
- CVE-2012-0840tables/apr_hash.c in the Apache Portable Runtime (APR) library through 1.4.5 computes hash values without restricting the ability to trigger33Monitor
- CVE-2021-35940Regression of CVE-2017-1261328Monitor
- CVE-2011-0419Stack consumption vulnerability in the fnmatch implementation in apr_fnmatch.c in the Apache Portable Runtime (APR) library before 1.4.3 and26Monitor
- CVE-2023-49582Apache Portable Runtime (APR): Unexpected lax shared memory permissions22Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:apr | 1.6.3-1 · Debian:12 | Package registry (OSV) |
| red hat:apr | 0:1.3.9-5.el6_9.1 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:apr-debuginfo | 0:1.3.9-5.el6_9.1 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:apr-devel | 0:1.3.9-5.el6_9.1 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:jbcs-httpd24-httpd | 0:2.4.23-125.jbcs.el7 · Red Hat:jboss_core_services:1::el7 | Package registry (OSV) |
| red hat:jbcs-httpd24-httpd-debuginfo | 0:2.4.23-125.jbcs.el7 · Red Hat:jboss_core_services:1::el7 | Package registry (OSV) |
| red hat:jbcs-httpd24-httpd-devel | 0:2.4.23-125.jbcs.el7 · Red Hat:jboss_core_services:1::el7 | Package registry (OSV) |
| red hat:jbcs-httpd24-httpd-libs | 0:2.4.23-125.jbcs.el7 · Red Hat:jboss_core_services:1::el7 | Package registry (OSV) |
| red hat:jbcs-httpd24-httpd-manual | 0:2.4.23-125.jbcs.el7 · Red Hat:jboss_core_services:1::el7 | Package registry (OSV) |
| red hat:jbcs-httpd24-httpd-selinux | 0:2.4.23-125.jbcs.el7 · Red Hat:jboss_core_services:1::el7 | Package registry (OSV) |
| red hat:jbcs-httpd24-httpd-tools | 0:2.4.23-125.jbcs.el7 · Red Hat:jboss_core_services:1::el7 | Package registry (OSV) |
| red hat:jbcs-httpd24-mod_bmx | 0:0.9.6-15.GA.jbcs.el7 · Red Hat:jboss_core_services:1::el7 | Package registry (OSV) |
| red hat:jbcs-httpd24-mod_bmx-debuginfo | 0:0.9.6-15.GA.jbcs.el7 · Red Hat:jboss_core_services:1::el7 | Package registry (OSV) |
| suse:libapr1 | 1.5.1-4.3.1 · SUSE:Linux Enterprise Software Development Kit 12 SP3 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-125 · Out-of-bounds ReadCVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
ATT&CK techniques
—
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- www.apache.org/dist/apr/Announcement1.x.html
- www.openwall.com/lists/oss-security/2021/08/23/1
- www.securityfocus.com/bid/101560
- www.securitytracker.com/id/1042004
- access.redhat.com/errata/RHSA-2017:3270
- access.redhat.com/errata/RHSA-2017:3475
- access.redhat.com/errata/RHSA-2017:3476
- access.redhat.com/errata/RHSA-2017:3477
- access.redhat.com/errata/RHSA-2018:0316
- access.redhat.com/errata/RHSA-2018:0465
- access.redhat.com/errata/RHSA-2018:0466
- access.redhat.com/errata/RHSA-2018:1253
- lists.apache.org/thread.html/12489f2e4a9f9d390235c16298aca0d20658789de80d553513977f13%40%3Cannounce.apache.org%3E
- lists.apache.org/thread.html/r270dd5022db194b78acaf509216a33c85f3da43757defa05cc766339%40%3Ccommits.apr.apache.org%3E
- lists.apache.org/thread.html/ra2868b53339a6af65577146ad87016368c138388b09bff9d2860f50e%40%3Cdev.apr.apache.org%3E
- lists.apache.org/thread.html/ra38094406cc38a05218ebd1158187feda021b0c3a1df400bbf296af8%40%3Cdev.apr.apache.org%3E
- lists.apache.org/thread.html/rb1f3c85f50fbd924a0051675118d1609e57957a02ece7facb723155b%40%3Cannounce.apache.org%3E
- lists.apache.org/thread.html/rcc48a0acebbd74bbdeebc02ff228bb72c0631b21823fffe27d4691e9%40%3Ccommits.apr.apache.org%3E
- lists.debian.org/debian-lts-announce/2017/11/msg00005.html
- lists.debian.org/debian-lts-announce/2022/01/msg00023.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.