Home page logo
/

fulldisclosure logo Full Disclosure mailing list archives

[USN-72-1] Perl vulnerabilities
From: Martin Pitt <martin.pitt () canonical com>
Date: Wed, 2 Feb 2005 14:57:49 +0100

===========================================================
Ubuntu Security Notice USN-72-1           February 02, 2005
perl vulnerabilities
CAN-2005-0155, CAN-2005-0156
===========================================================

A security issue affects the following Ubuntu releases:

Ubuntu 4.10 (Warty Warthog)

The following packages are affected:

perl

The problem can be corrected by upgrading the affected package to
version 5.8.4-2ubuntu0.3. In general, a standard system upgrade is
sufficient to effect the necessary changes. 

Details follow:

Two exploitable vulnerabilities involving setuid-enabled perl scripts
have been discovered. The package "perl-suid" provides a wrapper
around perl which allows to use setuid-root perl scripts, i.e.
user-callable Perl scripts which have full root privileges.

Previous versions allowed users to overwrite arbitrary files by
setting the PERLIO_DEBUG environment variable and calling an arbitrary
setuid-root perl script. The file that PERLIO_DEBUG points to was then
overwritten by Perl debug messages. This did not allow precise control
over the file content, but could destroy important data. PERLIO_DEBUG
is now ignored for setuid scripts. (CAN-2005-0155)

In addition, calling a setuid-root perl script with a very long path
caused a buffer overflow if PERLIO_DEBUG was set. This buffer overflow
could be exploited to execute arbitrary files with full root
privileges. (CAN-2005-0156)

  Source archives:

    http://security.ubuntu.com/ubuntu/pool/main/p/perl/perl_5.8.4-2ubuntu0.3.diff.gz
      Size/MD5:    57791 6838d5eb8b01a50895f60f899b7f9970
    http://security.ubuntu.com/ubuntu/pool/main/p/perl/perl_5.8.4-2ubuntu0.3.dsc
      Size/MD5:      727 424d777c7a4f7e01e142bd907ec49134
    http://security.ubuntu.com/ubuntu/pool/main/p/perl/perl_5.8.4.orig.tar.gz
      Size/MD5: 12094233 912050a9cb6b0f415b76ba56052fb4cf

  Architecture independent packages:

    http://security.ubuntu.com/ubuntu/pool/universe/p/perl/libcgi-fast-perl_5.8.4-2ubuntu0.3_all.deb
      Size/MD5:    36762 3187be1f92d688e34fca60c46f688ca9
    http://security.ubuntu.com/ubuntu/pool/main/p/perl/perl-doc_5.8.4-2ubuntu0.3_all.deb
      Size/MD5:  7049796 f64050a4658b325918e1d853d0f2cbc0
    http://security.ubuntu.com/ubuntu/pool/main/p/perl/perl-modules_5.8.4-2ubuntu0.3_all.deb
      Size/MD5:  2181384 b2a50b4f2dde034430bc84bbabc791cc

  amd64 architecture (Athlon64, Opteron, EM64T Xeon)

    http://security.ubuntu.com/ubuntu/pool/main/p/perl/libperl-dev_5.8.4-2ubuntu0.3_amd64.deb
      Size/MD5:   605434 2ca037b813fe14be47cafa2f27acd77b
    http://security.ubuntu.com/ubuntu/pool/main/p/perl/libperl5.8_5.8.4-2ubuntu0.3_amd64.deb
      Size/MD5:     1032 2bb8737a384a3786171d2ae2a3ed4a7a
    http://security.ubuntu.com/ubuntu/pool/main/p/perl/perl-base_5.8.4-2ubuntu0.3_amd64.deb
      Size/MD5:   787086 e5bb5502b6e90a29c74acc032b9e55c5
    http://security.ubuntu.com/ubuntu/pool/universe/p/perl/perl-debug_5.8.4-2ubuntu0.3_amd64.deb
      Size/MD5:  3819860 1daaaa3016ad679e80199e19c5b901ef
    http://security.ubuntu.com/ubuntu/pool/main/p/perl/perl-suid_5.8.4-2ubuntu0.3_amd64.deb
      Size/MD5:    32832 0cb6d5e891a5524a8d88a2c42c866e57
    http://security.ubuntu.com/ubuntu/pool/main/p/perl/perl_5.8.4-2ubuntu0.3_amd64.deb
      Size/MD5:  3834226 442c1ace9f9ea25dc24075c37ee2365b

  i386 architecture (x86 compatible Intel/AMD)

    http://security.ubuntu.com/ubuntu/pool/main/p/perl/libperl-dev_5.8.4-2ubuntu0.3_i386.deb
      Size/MD5:   546882 60034b55abcae07a3d6c6052a3213463
    http://security.ubuntu.com/ubuntu/pool/main/p/perl/libperl5.8_5.8.4-2ubuntu0.3_i386.deb
      Size/MD5:   494062 6588b891ea5946652fbfa57529ab63c7
    http://security.ubuntu.com/ubuntu/pool/main/p/perl/perl-base_5.8.4-2ubuntu0.3_i386.deb
      Size/MD5:   727402 9f372c22dbe904e4986c20db27ca4eab
    http://security.ubuntu.com/ubuntu/pool/universe/p/perl/perl-debug_5.8.4-2ubuntu0.3_i386.deb
      Size/MD5:  3631146 a4e235f9ee4b5b4c00af9681c462f9cb
    http://security.ubuntu.com/ubuntu/pool/main/p/perl/perl-suid_5.8.4-2ubuntu0.3_i386.deb
      Size/MD5:    30812 70923ad1d98c214f7d74b3fcd33fd8a3
    http://security.ubuntu.com/ubuntu/pool/main/p/perl/perl_5.8.4-2ubuntu0.3_i386.deb
      Size/MD5:  3229674 c1eefcf39facb03157c59a0f87ff7471

  powerpc architecture (Apple Macintosh G3/G4/G5)

    http://security.ubuntu.com/ubuntu/pool/main/p/perl/libperl-dev_5.8.4-2ubuntu0.3_powerpc.deb
      Size/MD5:   560992 17dd72a903ea7cb68dde0b937c18dbbd
    http://security.ubuntu.com/ubuntu/pool/main/p/perl/libperl5.8_5.8.4-2ubuntu0.3_powerpc.deb
      Size/MD5:     1032 b30fdccfa2463633641622427cbcaa73
    http://security.ubuntu.com/ubuntu/pool/main/p/perl/perl-base_5.8.4-2ubuntu0.3_powerpc.deb
      Size/MD5:   718224 c200522dfa69b9810d66dd94a5102f6f
    http://security.ubuntu.com/ubuntu/pool/universe/p/perl/perl-debug_5.8.4-2ubuntu0.3_powerpc.deb
      Size/MD5:  3817106 3fbeaca89ae2b2a54adb0b01b282f8bd
    http://security.ubuntu.com/ubuntu/pool/main/p/perl/perl-suid_5.8.4-2ubuntu0.3_powerpc.deb
      Size/MD5:    30558 606caf5631780c2941118a5bbd6b2fd4
    http://security.ubuntu.com/ubuntu/pool/main/p/perl/perl_5.8.4-2ubuntu0.3_powerpc.deb
      Size/MD5:  3477176 d1e921f275e597dc1b59d6ca5680c07e

Attachment: signature.asc
Description: Digital signature

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.netsys.com/full-disclosure-charter.html

  By Date           By Thread  

Current thread:
  • [USN-72-1] Perl vulnerabilities Martin Pitt (Feb 02)
[ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]
AlienVault