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PostPosted: Sun Oct 08, 2017 7:26 pm    Post subject: [ GLSA 201710-07 ] OCaml Reply with quote

Gentoo Linux Security Advisory

Title: OCaml: Privilege escalation (GLSA 201710-07)
Severity: high
Exploitable: remote
Date: 2017-10-08
Bug(s): #622544
ID: 201710-07

Synopsis

A vulnerability in OCaml may allow local users to gain root
privileges.



Background

OCaml is a high-level, strongly-typed, functional, and object-oriented
programming language from the ML family of languages.


Affected Packages

Package: dev-lang/ocaml
Vulnerable: < 4.04.2
Unaffected: >= 4.04.2
Architectures: All supported architectures


Description

A bad sanitization of environment variables: CAML_CPLUGINS,
CAML_NATIVE_CPLUGINS and CAML_BYTE_CPLUGINS in the OCaml compiler allows
the execution of raised privileges via external code.


Impact

A local attacker, by using specially crafted environment variables,
could possibly escalate privileges to the root group.


Workaround

There is no known workaround at this time.

Resolution

All OCaml users should upgrade to the latest version:
Code:
# emerge --sync
      # emerge --ask --oneshot --verbose ">=dev-lang/ocaml-4.04.2"
   


References


CVE-2017-9772
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