Mandriva Linux Security Advisory : ruby (MDVSA-2008:141)

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Synopsis :

The remote Mandriva Linux host is missing one or more security
updates.

Description :

Multiple vulnerabilities have been found in the Ruby interpreter and
in Webrick, the webserver bundled with Ruby.

Directory traversal vulnerability in WEBrick in Ruby 1.8 before
1.8.5-p115 and 1.8.6-p114, and 1.9 through 1.9.0-1, when running on
systems that support backslash () path separators or case-insensitive
file names, allows remote attackers to access arbitrary files via (1)
..%5c (encoded backslash) sequences or (2) filenames that match
patterns in the :NondisclosureName option. (CVE-2008-1145)

Directory traversal vulnerability in WEBrick in Ruby 1.9.0 and
earlier, when using NTFS or FAT filesystems, allows remote attackers
to read arbitrary CGI files via a trailing (1) + (plus), (2) %2b
(encoded plus), (3) . (dot), (4) %2e (encoded dot), or (5) %20
(encoded space) character in the URI, possibly related to the
WEBrick::HTTPServlet::FileHandler and WEBrick::HTTPServer.new
functionality and the :DocumentRoot option. (CVE-2008-1891)

Multiple integer overflows in the rb_str_buf_append function in Ruby
1.8.4 and earlier, 1.8.5 before 1.8.5-p231, 1.8.6 before 1.8.6-p230,
1.8.7 before 1.8.7-p22, and 1.9.0 before 1.9.0-2 allow
context-dependent attackers to execute arbitrary code or cause a
denial of service via unknown vectors that trigger memory corruption.
(CVE-2008-2662)

Multiple integer overflows in the rb_ary_store function in Ruby 1.8.4
and earlier, 1.8.5 before 1.8.5-p231, 1.8.6 before 1.8.6-p230, and
1.8.7 before 1.8.7-p22 allow context-dependent attackers to execute
arbitrary code or cause a denial of service via unknown vectors.
(CVE-2008-2663)

The rb_str_format function in Ruby 1.8.4 and earlier, 1.8.5 before
1.8.5-p231, 1.8.6 before 1.8.6-p230, 1.8.7 before 1.8.7-p22, and 1.9.0
before 1.9.0-2 allows context-dependent attackers to trigger memory
corruption via unspecified vectors related to alloca. (CVE-2008-2664)

Integer overflow in the rb_ary_splice function in Ruby 1.8.4 and
earlier, 1.8.5 before 1.8.5-p231, 1.8.6 before 1.8.6-p230, and 1.8.7
before 1.8.7-p22 allows context-dependent attackers to trigger memory
corruption via unspecified vectors, aka the REALLOC_N variant.
(CVE-2008-2725)

Integer overflow in the rb_ary_splice function in Ruby 1.8.4 and
earlier, 1.8.5 before 1.8.5-p231, 1.8.6 before 1.8.6-p230, 1.8.7
before 1.8.7-p22, and 1.9.0 before 1.9.0-2 allows context-dependent
attackers to trigger memory corruption, aka the beg + rlen issue.
(CVE-2008-2726)

Integer overflow in the rb_ary_fill function in array.c in Ruby before
revision 17756 allows context-dependent attackers to cause a denial of
service (crash) or possibly have unspecified other impact via a call
to the Array#fill method with a start (aka beg) argument greater than
ARY_MAX_SIZE. (CVE-2008-2376)

The updated packages have been patched to fix these issues.

Solution :

Update the affected packages.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 8.7
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: Mandriva Local Security Checks

Nessus Plugin ID: 37401 (mandriva_MDVSA-2008-141.nasl)

Bugtraq ID: 28123
29903
30036

CVE ID: CVE-2008-1145
CVE-2008-1891
CVE-2008-2376
CVE-2008-2662
CVE-2008-2663
CVE-2008-2664
CVE-2008-2725
CVE-2008-2726

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