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Fencer Intel
critical 9.8

CVE-2015-8949 json

Use-after-free vulnerability in the my_login function in DBD::mysql before 4.033_01 allows attackers to have unspecified impact by leveragi…

published 2016-08-19 10 y ago modified 2026-06-17 4 mo ago also EUVD-2015-8805

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.5%
EPSS 4.5% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

Use-after-free vulnerability in the my_login function in DBD::mysql before 4.033_01 allows attackers to have unspecified impact by leveraging a call to mysql_errno after a failure of my_login.

Patch / fix

  • libdbd-mysql-perl Debian 14, Debian 13, Debian 12 4.035-1

debian advisories DEBIAN-CVE-2015-8949

  • libdbd-mysql-perl Ubuntu 14.04 LTS 4.025-1ubuntu0.1
  • libdbd-mysql-perl Ubuntu 16.04 LTS 4.033-1ubuntu0.1

ubuntu advisories UBUNTU-CVE-2015-8949

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2015-8949 updated cvss 9.8

perl-DBD-MySQL: Use after free when my_login fails

  • Red Hat Software Collections rh-perl520-perl-DBD-MySQL
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 5 perl-DBD-MySQL Red Hat Enterprise Linux 6 perl-DBD-MySQL Red Hat Enterprise Linux 7 perl-DBD-MySQL Red Hat Software Collections perl516-perl-DBD-MySQL
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

4.52% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.