RHSA-2008:0532

Vulnerability from csaf_redhat - Published: 2008-06-17 16:08 - Updated: 2025-11-21 17:33
Summary
Red Hat Security Advisory: perl security update
Severity
Important
Notes
Topic: Updated perl packages that fix a security issue are now available for Red Hat Application Stack v1. This update has been rated as having important security impact by the Red Hat Security Response Team.
Details: Perl is a high-level programming language commonly used for system administration utilities and Web programming. A flaw was found in Perl's regular expression engine. A specially crafted regular expression with Unicode characters could trigger a buffer overflow, causing Perl to crash, or possibly execute arbitrary code with the privileges of the user running Perl. (CVE-2008-1927) Users of perl are advised to upgrade to these updated packages, which contain a backported patch to resolve this issue.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
CVE-2008-1927

Double free vulnerability in Perl 5.8.8 allows context-dependent attackers to cause a denial of service (memory corruption and crash) via a crafted regular expression containing UTF8 characters. NOTE: this issue might only be present on certain operating systems.

Affected products
Product Identifier Version Remediation
Unresolved product id: 4AS-RHWAS:perl-4:5.8.8-6.el4s1_3.i386 —
Vendor Fix fix
Unresolved product id: 4AS-RHWAS:perl-4:5.8.8-6.el4s1_3.src —
Vendor Fix fix
Unresolved product id: 4AS-RHWAS:perl-4:5.8.8-6.el4s1_3.x86_64 —
Vendor Fix fix
Unresolved product id: 4AS-RHWAS:perl-debuginfo-4:5.8.8-6.el4s1_3.i386 —
Vendor Fix fix
Unresolved product id: 4AS-RHWAS:perl-debuginfo-4:5.8.8-6.el4s1_3.x86_64 —
Vendor Fix fix
Unresolved product id: 4AS-RHWAS:perl-suidperl-4:5.8.8-6.el4s1_3.i386 —
Vendor Fix fix
Unresolved product id: 4AS-RHWAS:perl-suidperl-4:5.8.8-6.el4s1_3.x86_64 —
Vendor Fix fix
Unresolved product id: 4ES-RHWAS:perl-4:5.8.8-6.el4s1_3.i386 —
Vendor Fix fix
Unresolved product id: 4ES-RHWAS:perl-4:5.8.8-6.el4s1_3.src —
Vendor Fix fix
Unresolved product id: 4ES-RHWAS:perl-4:5.8.8-6.el4s1_3.x86_64 —
Vendor Fix fix
Unresolved product id: 4ES-RHWAS:perl-debuginfo-4:5.8.8-6.el4s1_3.i386 —
Vendor Fix fix
Unresolved product id: 4ES-RHWAS:perl-debuginfo-4:5.8.8-6.el4s1_3.x86_64 —
Vendor Fix fix
Unresolved product id: 4ES-RHWAS:perl-suidperl-4:5.8.8-6.el4s1_3.i386 —
Vendor Fix fix
Unresolved product id: 4ES-RHWAS:perl-suidperl-4:5.8.8-6.el4s1_3.x86_64 —
Vendor Fix fix
Threats
Impact Important
References
To clipboard 

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          "title": "Vulnerability description"
        },
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      "release_date": "2007-12-04T00:00:00+00:00",
      "remediations": [
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          "details": "Before applying this update, make sure that all previously-released\nerrata relevant to your system have been applied.\n\nThis update is available via Red Hat Network.  Details on how to use\nthe Red Hat Network to apply this update are available at\nhttp://kbase.redhat.com/faq/FAQ_58_10188",
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            "4ES-RHWAS:perl-4:5.8.8-6.el4s1_3.i386",
            "4ES-RHWAS:perl-4:5.8.8-6.el4s1_3.src",
            "4ES-RHWAS:perl-4:5.8.8-6.el4s1_3.x86_64",
            "4ES-RHWAS:perl-debuginfo-4:5.8.8-6.el4s1_3.i386",
            "4ES-RHWAS:perl-debuginfo-4:5.8.8-6.el4s1_3.x86_64",
            "4ES-RHWAS:perl-suidperl-4:5.8.8-6.el4s1_3.i386",
            "4ES-RHWAS:perl-suidperl-4:5.8.8-6.el4s1_3.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2008:0532"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "perl: heap corruption by regular expressions with utf8 characters"
    }
  ]
}



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Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.