Apache Portable Runtime (APR): Unexpected lax shared memory permissions
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat.
Summary
Lax permissions set by the Apache Portable Runtime library on Unix platforms would allow local users read access to named shared memory segments, potentially revealing sensitive application data. This issue does not affect non-Unix platforms, or builds with APR_USE_SHMEM_SHMGET=1 (apr.h) Users are recommended to upgrade to APR version 1.7.5, which fixes this issue.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet |
Not affected: 6 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat JBoss Core Services
Timeline
- 2026-10-02 Threatist record created from CVE-2023-49582
- 2026-10-03 Alias added: GHSA-j26h-qjc9-68hh
References
More Apache Portable Runtime vulnerabilities
- TI-2009-02302 Multiple integer overflows in the Apache Portable Runtime (APR) library and the Apache… CVSS 2.0HIGH 10.0
- TI-2022-11103 Apache Portable Runtime (APR): Windows out-of-bounds write in apr_socket_sendv function CVSS 3.1CRITICAL 9.8
- TI-2022-08761 Apache Portable Runtime (APR): out-of-bound writes in the apr_encode family of functions CVSS 3.1CRITICAL 9.8
- TI-2012-00775 tables/apr_hash.c in the Apache Portable Runtime (APR) library through 1.4.5 computes… CVSS 2.0MEDIUM 5.0
- TI-2009-02581 The Solaris pollset feature in the Event Port backend in poll/unix/port.c in the Apache… CVSS 3.1HIGH 7.5
- TI-2011-00350 Stack consumption vulnerability in the fnmatch implementation in apr_fnmatch.c in the… CVSS 2.0MEDIUM 4.3
Sources
- CVE-2023-49582 · CVE Program
- CVE-2023-49582 · NVD
- FIRST EPSS
- GHSA-j26h-qjc9-68hh · GitHub Advisory Database · CC BY 4.0
- CVE-2023-49582 · Red Hat security data · CC BY 4.0
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