dbcve.org
Enterprise LinuxOperating system · Redhat

CVE-2022-25308

HIGH · 7.8 CVSS v3.1 Published 2022-09-06
Fix available
A fix is available. Upgrade to 1.0.12 or later.
See remediation →
81/100
Remediation priority · High
Public exploit No privileges Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A stack-based buffer overflow flaw was found in the Fribidi package. This flaw allows an attacker to pass a specially crafted file to the Fribidi application, which leads to a possible memory leak or a denial of service.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-121

Data overflows a fixed-size buffer allocated on the stack, overwriting adjacent stack memory — including saved return addresses — which is the classic route to redirecting execution into attacker-supplied code. Crafted input is all it takes. Remediation is strict length checks, safe bounded string and memory functions, and modern stack-protection mitigations.

General guidance for the stack-based buffer overflow class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Enterprise LinuxOperating system
Affected:= 8.0= 9.0
FribidiApplication
Affected:< 1.0.12

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 1.0.12 or later
Fixed in 1.0.12
Vendor patch github.com →
Recommended fix High confidence

Fribidi >= 1.0.12 (or latest available in your distribution's repository)

  1. Identify the current Fribidi package version installed (e.g., `rpm -qa | grep fribidi` or `fribidi --version`)
  2. Backup any critical data or configurations that rely on Fribidi
  3. Update the Fribidi package to version 1.0.12 or later: On RHEL/Enterprise Linux, run `sudo dnf update fribidi` or `sudo yum update fribidi`
  4. Verify the updated version: `fribidi --version` to confirm version 1.0.12 or higher is installed
  5. Test applications that depend on Fribidi to ensure functionality is intact
  6. If using a package manager that doesn't have the fixed version available, consider building from source: Clone https://github.com/fribidi/fribidi, checkout version v1.0.12 or later, run `./bootstrap`, `./configure`, `make`, `sudo make install`
Caveat Minimal risk; Fribidi is a Unicode bidirectional text library with no known breaking changes in this update. However, rebuild any statically linked applications that bundle Fribidi.

Generated from the published advisory — verify against the referenced sources before acting.

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $1,950. Get the upgrade done

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2022-25308 in production — separate from our analysis above.

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