OESA-2026-2843

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Source

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-2843

Import Source

https://repo.openeuler.org/security/data/osv/OESA-2026-2843.json

JSON Data

https://api.osv.dev/v1/vulns/OESA-2026-2843

Upstream

CVE-2026-12087

Published

2026-07-06T11:11:45Z

Modified

2026-08-18T01:21:14Z

Severity

9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H CVSS Calculator

Summary

perl security update

Details

Perl 5 is a highly capable, feature-rich programming language with over 30 years of development. Perl 5 runs on over 100 platforms from portables to mainframes and is suitable for both rapid prototyping and large scale development projects.

Security Fix(es):

Socket versions before 2.041 for Perl have an out-of-bounds heap read.

In Socket.xs, pack_ip_mreq_source() checks the length of its source argument before the argument is read, so the check tests the byte length carried over from the preceding multiaddr argument instead. Both addresses occupy a 4-byte field, so a valid multiaddr lets a source of any length pass the check, and the source is then copied into the 4-byte imr_sourceaddr field with a fixed-size copy. A source shorter than 4 bytes is not rejected, and the copy reads up to 3 bytes past the end of its buffer.

Calling pack_ip_mreq_source() with a source value shorter than 4 bytes copies adjacent heap memory into the returned packed structure.(CVE-2026-12087)

Database specific

{
    "severity": "Critical"
}

References

Affected packages

openEuler:22.03-LTS-SP4 / perl

Package

Name: perl
Purl: pkg:rpm/openEuler/perl&distro=openEuler-22.03-LTS-SP4

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

5.34.0-16.oe2203sp4

Ecosystem specific

{
    "aarch64": [
        "perl-5.34.0-16.oe2203sp4.aarch64.rpm",
        "perl-debuginfo-5.34.0-16.oe2203sp4.aarch64.rpm",
        "perl-debugsource-5.34.0-16.oe2203sp4.aarch64.rpm",
        "perl-devel-5.34.0-16.oe2203sp4.aarch64.rpm",
        "perl-libs-5.34.0-16.oe2203sp4.aarch64.rpm"
    ],
    "noarch": [
        "perl-help-5.34.0-16.oe2203sp4.noarch.rpm"
    ],
    "src": [
        "perl-5.34.0-16.oe2203sp4.src.rpm"
    ],
    "x86_64": [
        "perl-5.34.0-16.oe2203sp4.x86_64.rpm",
        "perl-debuginfo-5.34.0-16.oe2203sp4.x86_64.rpm",
        "perl-debugsource-5.34.0-16.oe2203sp4.x86_64.rpm",
        "perl-devel-5.34.0-16.oe2203sp4.x86_64.rpm",
        "perl-libs-5.34.0-16.oe2203sp4.x86_64.rpm"
    ]
}

Database specific

source

"https://repo.openeuler.org/security/data/osv/OESA-2026-2843.json"