CVE-2023-49582 | Apache Portable Runtime (APR): Unexpected lax shared memory permissions

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.

Published: 2024-08-26 Last update: 2025-03-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-49582 is rated Low Risk (23.2/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.02%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-49582

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-11-21 0.07% 0.02% -0.05%
2 2025-11-18 0.03% 0.07% +0.04%
3 2025-04-15 — 0.03% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-49582

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 1.8 3.6 [email protected]
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 1.8 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2023-49582

OS Trackers for CVE-2023-49582

vendor priority summary link
alpine — CVE-2023-49582: 1 source package rows (apr); 7 state rows across 7 repos (3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 7, open 0. https://security.alpinelinux.org/vuln/CVE-2023-49582
debian not yet assigned CVE-2023-49582 not yet assigned priority: Debian including 1 source packages (apr), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 4, open 1. https://security-tracker.debian.org/tracker/CVE-2023-49582
redhat medium — https://access.redhat.com/security/cve/CVE-2023-49582
suse medium CVE-2023-49582 severity moderate: SUSE including 249 source package names (10.1.33-openjdk11-59.4:libapr1-1.6.3-150000.3.6.1, 10.1.33-openjdk17-59.4:libapr1-1.6.3-150000.3.6.1, …), 303 product×package rows across 62 product lines (Container bci/php-apache, Container containers/apache-tomcat, … (62 product lines)): Known Affected 231, Fixed 72. https://www.suse.com/security/cve/CVE-2023-49582/
ubuntu medium CVE-2023-49582 medium priority: Ubuntu including 1 source packages (apr), 8 status rows across 8 suites (bionic, focal, jammy, noble, oracular, trusty, upstream, xenial): released 8. https://ubuntu.com/security/CVE-2023-49582

Affected software / configurations for CVE-2023-49582

Vendor Product Version Raw CPE
apache portable_runtime >= 0.9.0, < 1.7.5 cpe:2.3:a:apache:portable_runtime:*:*:*:*:*:*:*:*

References for CVE-2023-49582

cvelogic Threat Intelligence