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CVE-2026-11979

CVE-2026-11979 · Stack-Based Buffer Overflow in libxml2

Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.

libxml2 is vulnerable to multiple stack-based buffer overflows in the xmlcatalog utility when running in --shell mode. The usershell() function processes user input using fixed-size stack buffers without proper bounds checking. By supplying an overly long input line, an attacker can overflow internal buffers (command, arg, and argv) during input parsing. This results in memory corruption within the stack frame. Successful exploitation may cause a crash or potentially allow arbitrary code execution in the context of the xmlcatalog process. This issue has been fixed in the commit c2e233fc. NOTE: The maintainers of this project did not agree that this issue is a vulnerability and considered it a bug.

CVSS 1.8 · Faible · EPSS 0,1% · Correctif disponible

Publication
Mise à jour

Pile logicielle: system

Produits et versions concernés

  • libxml2

    Versions du logiciel
    • ≥ 0, ≤ 2.15.3: Concernée (custom)

    Aucun correctif publié

  • libxml2 Debian:12

    Versions du logiciel
    • 2.12.3+dfsg-0exp1
    • 2.12.5+dfsg-0exp1
    • 2.12.6+dfsg-0exp1
    • 2.12.6+dfsg-0exp2
    • 2.12.7+dfsg+really2.9.14-0.1
    • 2.12.7+dfsg+really2.9.14-0.2
    • 2.12.7+dfsg+really2.9.14-0.3
    • 2.12.7+dfsg+really2.9.14-0.4
    • 2.12.7+dfsg+really2.9.14-1
    • 2.12.7+dfsg+really2.9.14-2
    • 2.12.7+dfsg+really2.9.14-2.1
    • 2.12.7+dfsg-1
    • 2.12.7+dfsg-2
    • 2.12.7+dfsg-3
    • 2.13.1+dfsg-0exp1
    • 2.13.3+dfsg-0exp1
    • 2.13.3+dfsg-0exp2
    • 2.14.1+dfsg-0exp1
    • 2.14.2+dfsg-0exp1
    • 2.14.3+dfsg-0exp1
    • 2.14.3+dfsg-0exp2
    • 2.14.3+dfsg-0exp3
    • 2.14.4+dfsg-0exp1
    • 2.14.5+dfsg-0.1
    • 2.14.5+dfsg-0.2
    • 2.14.5+dfsg-0exp1
    • 2.14.5+dfsg-0exp2
    • 2.14.6+dfsg-0.1
    • 2.15.0+dfsg-0.1
    • 2.15.0+dfsg-0.2
    • 2.15.0+dfsg-0.3
    • 2.15.1+dfsg-0.1
    • 2.15.1+dfsg-0.2
    • 2.15.1+dfsg-0.3
    • 2.15.1+dfsg-0.4
    • 2.15.1+dfsg-0.5
    • 2.15.1+dfsg-1
    • 2.15.1+dfsg-2
    • 2.15.2+dfsg-0.1
    • 2.15.3+dfsg-1
    • 2.15.4+dfsg-1
    • 2.9.14+dfsg-1.2
    • 2.9.14+dfsg-1.3
    • 2.9.14+dfsg-1.3~deb12u1
    • 2.9.14+dfsg-1.3~deb12u2
    • 2.9.14+dfsg-1.3~deb12u3
    • 2.9.14+dfsg-1.3~deb12u4
    • 2.9.14+dfsg-1.3~deb12u5
    • 2.9.14+dfsg-1.3~deb12u6
    Plages de versions concernées
    • ECOSYSTEM: (−∞, +∞)

    Aucun correctif publié

  • libxml2 Debian:13

    Versions du logiciel
    • 2.12.7+dfsg+really2.9.14-2.1
    • 2.12.7+dfsg+really2.9.14-2.1+deb13u1
    • 2.12.7+dfsg+really2.9.14-2.1+deb13u2
    • 2.12.7+dfsg+really2.9.14-2.1+deb13u3
    • 2.13.1+dfsg-0exp1
    • 2.13.3+dfsg-0exp1
    • 2.13.3+dfsg-0exp2
    • 2.14.1+dfsg-0exp1
    • 2.14.2+dfsg-0exp1
    • 2.14.3+dfsg-0exp1
    • 2.14.3+dfsg-0exp2
    • 2.14.3+dfsg-0exp3
    • 2.14.4+dfsg-0exp1
    • 2.14.5+dfsg-0.1
    • 2.14.5+dfsg-0.2
    • 2.14.5+dfsg-0exp1
    • 2.14.5+dfsg-0exp2
    • 2.14.6+dfsg-0.1
    • 2.15.0+dfsg-0.1
    • 2.15.0+dfsg-0.2
    • 2.15.0+dfsg-0.3
    • 2.15.1+dfsg-0.1
    • 2.15.1+dfsg-0.2
    • 2.15.1+dfsg-0.3
    • 2.15.1+dfsg-0.4
    • 2.15.1+dfsg-0.5
    • 2.15.1+dfsg-1
    • 2.15.1+dfsg-2
    • 2.15.2+dfsg-0.1
    • 2.15.3+dfsg-1
    • 2.15.4+dfsg-1
    Plages de versions concernées
    • ECOSYSTEM: (−∞, +∞)

    Aucun correctif publié

  • libxml2 Debian:14

    Versions du logiciel
    • 2.12.7+dfsg+really2.9.14-2.1
    • 2.13.1+dfsg-0exp1
    • 2.13.3+dfsg-0exp1
    • 2.13.3+dfsg-0exp2
    • 2.14.1+dfsg-0exp1
    • 2.14.2+dfsg-0exp1
    • 2.14.3+dfsg-0exp1
    • 2.14.3+dfsg-0exp2
    • 2.14.3+dfsg-0exp3
    • 2.14.4+dfsg-0exp1
    • 2.14.5+dfsg-0.1
    • 2.14.5+dfsg-0.2
    • 2.14.5+dfsg-0exp1
    • 2.14.5+dfsg-0exp2
    • 2.14.6+dfsg-0.1
    • 2.15.0+dfsg-0.1
    • 2.15.0+dfsg-0.2
    • 2.15.0+dfsg-0.3
    • 2.15.1+dfsg-0.1
    • 2.15.1+dfsg-0.2
    • 2.15.1+dfsg-0.3
    • 2.15.1+dfsg-0.4
    • 2.15.1+dfsg-0.5
    • 2.15.1+dfsg-1
    • 2.15.1+dfsg-2
    • 2.15.2+dfsg-0.1
    • 2.15.3+dfsg-1
    Plages de versions concernées
    • ECOSYSTEM: < 2.15.4+dfsg-1

    Mettez à jour vers 2.15.4+dfsg-1

  • libxml2 Ubuntu:Pro:14.04:LTS

    Versions du logiciel
    • 2.9.1+dfsg1-3ubuntu2
    • 2.9.1+dfsg1-3ubuntu3
    • 2.9.1+dfsg1-3ubuntu4
    • 2.9.1+dfsg1-3ubuntu4.1
    • 2.9.1+dfsg1-3ubuntu4.2
    • 2.9.1+dfsg1-3ubuntu4.3
    • 2.9.1+dfsg1-3ubuntu4.4
    • 2.9.1+dfsg1-3ubuntu4.5
    • 2.9.1+dfsg1-3ubuntu4.6
    • 2.9.1+dfsg1-3ubuntu4.7
    • 2.9.1+dfsg1-3ubuntu4.8
    • 2.9.1+dfsg1-3ubuntu4.9
    • 2.9.1+dfsg1-3ubuntu4.10
    • 2.9.1+dfsg1-3ubuntu4.11
    • 2.9.1+dfsg1-3ubuntu4.12
    • 2.9.1+dfsg1-3ubuntu4.13
    • 2.9.1+dfsg1-3ubuntu4.13+esm1
    • 2.9.1+dfsg1-3ubuntu4.13+esm2
    • 2.9.1+dfsg1-3ubuntu4.13+esm3
    • 2.9.1+dfsg1-3ubuntu4.13+esm4
    • 2.9.1+dfsg1-3ubuntu4.13+esm5
    • 2.9.1+dfsg1-3ubuntu4.13+esm6
    • 2.9.1+dfsg1-3ubuntu4.13+esm7
    • 2.9.1+dfsg1-3ubuntu4.13+esm8
    • 2.9.1+dfsg1-3ubuntu4.13+esm9
    • 2.9.1+dfsg1-3ubuntu4.13+esm10
    • 2.9.1+dfsg1-3ubuntu4.13+esm11
    • 2.9.1+dfsg1-3ubuntu4.13+esm12
    • 2.9.1+dfsg1-3ubuntu4.13+esm13
    Plages de versions concernées
    • ECOSYSTEM: (−∞, +∞)

    Aucun correctif publié

  • libxml2 Ubuntu:Pro:16.04:LTS

    Versions du logiciel
    • 2.9.2+zdfsg1-4
    • 2.9.2+zdfsg1-4ubuntu1
    • 2.9.2+zdfsg1-4ubuntu2
    • 2.9.2+zdfsg1-4ubuntu3
    • 2.9.3+dfsg1-1
    • 2.9.3+dfsg1-1ubuntu0.1
    • 2.9.3+dfsg1-1ubuntu0.2
    • 2.9.3+dfsg1-1ubuntu0.3
    • 2.9.3+dfsg1-1ubuntu0.4
    • 2.9.3+dfsg1-1ubuntu0.5
    • 2.9.3+dfsg1-1ubuntu0.6
    • 2.9.3+dfsg1-1ubuntu0.7
    • 2.9.3+dfsg1-1ubuntu0.7+esm1
    • 2.9.3+dfsg1-1ubuntu0.7+esm2
    • 2.9.3+dfsg1-1ubuntu0.7+esm3
    • 2.9.3+dfsg1-1ubuntu0.7+esm4
    • 2.9.3+dfsg1-1ubuntu0.7+esm5
    • 2.9.3+dfsg1-1ubuntu0.7+esm6
    • 2.9.3+dfsg1-1ubuntu0.7+esm7
    • 2.9.3+dfsg1-1ubuntu0.7+esm8
    • 2.9.3+dfsg1-1ubuntu0.7+esm9
    • 2.9.3+dfsg1-1ubuntu0.7+esm10
    • 2.9.3+dfsg1-1ubuntu0.7+esm11
    • 2.9.3+dfsg1-1ubuntu0.7+esm12
    • 2.9.3+dfsg1-1ubuntu0.7+esm13
    • 2.9.3+dfsg1-1ubuntu0.7+esm14
    Plages de versions concernées
    • ECOSYSTEM: (−∞, +∞)

    Aucun correctif publié

  • libxml2 Ubuntu:Pro:18.04:LTS

    Versions du logiciel
    • 2.9.4+dfsg1-4ubuntu1
    • 2.9.4+dfsg1-5ubuntu1
    • 2.9.4+dfsg1-5ubuntu2
    • 2.9.4+dfsg1-5.1ubuntu1
    • 2.9.4+dfsg1-5.2ubuntu1
    • 2.9.4+dfsg1-6.1ubuntu1
    • 2.9.4+dfsg1-6.1ubuntu1.2
    • 2.9.4+dfsg1-6.1ubuntu1.3
    • 2.9.4+dfsg1-6.1ubuntu1.4
    • 2.9.4+dfsg1-6.1ubuntu1.5
    • 2.9.4+dfsg1-6.1ubuntu1.6
    • 2.9.4+dfsg1-6.1ubuntu1.7
    • 2.9.4+dfsg1-6.1ubuntu1.8
    • 2.9.4+dfsg1-6.1ubuntu1.9
    • 2.9.4+dfsg1-6.1ubuntu1.9+esm1
    • 2.9.4+dfsg1-6.1ubuntu1.9+esm2
    • 2.9.4+dfsg1-6.1ubuntu1.9+esm3
    • 2.9.4+dfsg1-6.1ubuntu1.9+esm4
    • 2.9.4+dfsg1-6.1ubuntu1.9+esm5
    • 2.9.4+dfsg1-6.1ubuntu1.9+esm6
    • 2.9.4+dfsg1-6.1ubuntu1.9+esm7
    • 2.9.4+dfsg1-6.1ubuntu1.9+esm8
    • 2.9.4+dfsg1-6.1ubuntu1.9+esm9
    Plages de versions concernées
    • ECOSYSTEM: (−∞, +∞)

    Aucun correctif publié

  • libxml2 Ubuntu:Pro:20.04:LTS

    Versions du logiciel
    • 2.9.4+dfsg1-7ubuntu3
    • 2.9.4+dfsg1-7ubuntu5
    • 2.9.4+dfsg1-8ubuntu1
    • 2.9.4+dfsg1-8ubuntu2
    • 2.9.4+dfsg1-8ubuntu3
    • 2.9.10+dfsg-1ubuntu3
    • 2.9.10+dfsg-4build1
    • 2.9.10+dfsg-5
    • 2.9.10+dfsg-5ubuntu0.20.04.1
    • 2.9.10+dfsg-5ubuntu0.20.04.2
    • 2.9.10+dfsg-5ubuntu0.20.04.3
    • 2.9.10+dfsg-5ubuntu0.20.04.4
    • 2.9.10+dfsg-5ubuntu0.20.04.5
    • 2.9.10+dfsg-5ubuntu0.20.04.6
    • 2.9.10+dfsg-5ubuntu0.20.04.7
    • 2.9.10+dfsg-5ubuntu0.20.04.8
    • 2.9.10+dfsg-5ubuntu0.20.04.9
    • 2.9.10+dfsg-5ubuntu0.20.04.10
    • 2.9.10+dfsg-5ubuntu0.20.04.10+esm1
    • 2.9.10+dfsg-5ubuntu0.20.04.10+esm2
    • 2.9.10+dfsg-5ubuntu0.20.04.10+esm3
    • 2.9.10+dfsg-5ubuntu0.20.04.10+esm4
    • 2.9.10+dfsg-5ubuntu0.20.04.10+esm5
    • 2.9.10+dfsg-5ubuntu0.20.04.10+esm6
    Plages de versions concernées
    • ECOSYSTEM: (−∞, +∞)

    Aucun correctif publié

  • libxml2 Ubuntu:22.04:LTS

    Versions du logiciel
    • 2.9.12+dfsg-4
    • 2.9.12+dfsg-5
    • 2.9.12+dfsg-6
    • 2.9.13+dfsg-1
    • 2.9.13+dfsg-1build1
    • 2.9.13+dfsg-1ubuntu0.1
    • 2.9.13+dfsg-1ubuntu0.2
    • 2.9.13+dfsg-1ubuntu0.3
    • 2.9.13+dfsg-1ubuntu0.4
    • 2.9.13+dfsg-1ubuntu0.5
    • 2.9.13+dfsg-1ubuntu0.6
    • 2.9.13+dfsg-1ubuntu0.7
    • 2.9.13+dfsg-1ubuntu0.8
    • 2.9.13+dfsg-1ubuntu0.9
    • 2.9.13+dfsg-1ubuntu0.10
    • 2.9.13+dfsg-1ubuntu0.11
    • 2.9.13+dfsg-1ubuntu0.12
    • 2.9.13+dfsg-1ubuntu0.13
    • 2.9.13+dfsg-1ubuntu0.14
    Plages de versions concernées
    • ECOSYSTEM: (−∞, +∞)

    Aucun correctif publié

  • libxml2 Ubuntu:24.04:LTS

    Versions du logiciel
    • 2.9.14+dfsg-1.3
    • 2.9.14+dfsg-1.3build1
    • 2.9.14+dfsg-1.3build2
    • 2.9.14+dfsg-1.3build3
    • 2.9.14+dfsg-1.3ubuntu1
    • 2.9.14+dfsg-1.3ubuntu2
    • 2.9.14+dfsg-1.3ubuntu3
    • 2.9.14+dfsg-1.3ubuntu3.1
    • 2.9.14+dfsg-1.3ubuntu3.2
    • 2.9.14+dfsg-1.3ubuntu3.3
    • 2.9.14+dfsg-1.3ubuntu3.4
    • 2.9.14+dfsg-1.3ubuntu3.5
    • 2.9.14+dfsg-1.3ubuntu3.6
    • 2.9.14+dfsg-1.3ubuntu3.7
    • 2.9.14+dfsg-1.3ubuntu3.8
    • 2.9.14+dfsg-1.3ubuntu3.9
    • 2.9.14+dfsg-1.3ubuntu3.10
    Plages de versions concernées
    • ECOSYSTEM: (−∞, +∞)

    Aucun correctif publié

  • libxml2 Ubuntu:25.10

    Versions du logiciel
    • 2.12.7+dfsg+really2.9.14-0.4
    • 2.12.7+dfsg+really2.9.14-0.4ubuntu0.1
    • 2.12.7+dfsg+really2.9.14-1
    • 2.14.3+dfsg-0exp1
    • 2.14.3+dfsg-0exp2
    • 2.14.3+dfsg-0exp3
    • 2.14.4+dfsg-0exp1
    • 2.14.5+dfsg-0exp1
    • 2.14.5+dfsg-0exp2
    • 2.14.5+dfsg-0.1
    • 2.14.5+dfsg-0.2
    • 2.14.5+dfsg-0.2ubuntu0.1
    • 2.14.5+dfsg-0.2ubuntu0.2
    Plages de versions concernées
    • ECOSYSTEM: (−∞, +∞)

    Aucun correctif publié

  • libxml2 Ubuntu:26.04:LTS

    Versions du logiciel
    • 2.14.5+dfsg-0.2
    • 2.14.5+dfsg-0.2build1
    • 2.15.1+dfsg-0.3
    • 2.15.1+dfsg-0.4
    • 2.15.1+dfsg-1
    • 2.15.1+dfsg-2
    • 2.15.1+dfsg-2ubuntu1
    • 2.15.1+dfsg-2ubuntu2
    • 2.15.2+dfsg-0.1
    • 2.15.2+dfsg-0.1ubuntu0.1
    • 2.15.2+dfsg-0.1ubuntu0.2
    • 2.15.2+dfsg-0.1ubuntu0.3
    Plages de versions concernées
    • ECOSYSTEM: (−∞, +∞)

    Aucun correctif publié

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