Synopsis

Moderate: tcl security and bug fix update

Type/Severity

Security Advisory: Moderate

Topic

Updated tcl packages that fix two security issues and one bug are now
available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having moderate
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.

Description

Tcl (Tool Command Language) provides a powerful platform for creating
integration applications that tie together diverse applications, protocols,
devices, and frameworks. When paired with the Tk toolkit, Tcl provides a
fast and powerful way to create cross-platform GUI applications.

Two denial of service flaws were found in the Tcl regular expression
handling engine. If Tcl or an application using Tcl processed a
specially-crafted regular expression, it would lead to excessive CPU and
memory consumption. (CVE-2007-4772, CVE-2007-6067)

This update also fixes the following bug:

• Due to a suboptimal implementation of threading in the current version of
  the Tcl language interpreter, an attempt to use threads in combination with
  fork in a Tcl script could cause the script to stop responding. At the
  moment, it is not possible to rewrite the source code or drop support for
  threading entirely. Consequent to this, this update provides a version of
  Tcl without threading support in addition to the standard version with this
  support. Users who need to use fork in their Tcl scripts and do not require
  threading can now switch to the version without threading support by using
  the alternatives command. (BZ#478961)
  

All users of Tcl are advised to upgrade to these updated packages, which
contain backported patches to correct these issues.

Solution

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 ia64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux for IBM z Systems 5 s390x
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

• BZ - 316511 - CVE-2007-4772 postgresql DoS via infinite loop in regex NFA optimization code
• BZ - 400931 - CVE-2007-6067 postgresql: tempory DoS caused by slow regex NFA cleanup
• BZ - 478961 - [RHEL5] tcl threads support implementation can cause scripts to hang

CVEs

• CVE-2007-6067
• CVE-2007-4772

References

• https://access.redhat.com/security/updates/classification/#moderate

Red Hat Enterprise Linux Server 5

SRPM
tcl-8.4.13-6.el5.src.rpm	SHA-256: 2c86b3e9c10c0fa8c47507cf1a94676ee0585c7360ea82ccb2852582a02716dc
x86_64
tcl-8.4.13-6.el5.i386.rpm	SHA-256: e8bbe5441d7ba3103050533f4eceaac9752b25c210bb0a98c9ed44736e9fa9fb
tcl-8.4.13-6.el5.x86_64.rpm	SHA-256: 1f1d1cc4d799acbd218aa5c2ebf2fae122cdf6ebc5153fbd340ed6272a13d4ed
tcl-debuginfo-8.4.13-6.el5.i386.rpm	SHA-256: 47297032028e4464e356d2a83dad35e8718c15f0b59950b4ee849b9abe9948a1
tcl-debuginfo-8.4.13-6.el5.x86_64.rpm	SHA-256: 667b6a4688d764cea6c31b9e255ec884810df3fbf329dbdaf1afbefbc6459639
tcl-devel-8.4.13-6.el5.i386.rpm	SHA-256: 037b3c7c56c6effaf11be195ccb4bd27928b8af05c1c6690972107bb3972a106
tcl-devel-8.4.13-6.el5.x86_64.rpm	SHA-256: 820f173560ac9de3c54baa30b520db853b830fafed1d01bee93414c200797304
tcl-html-8.4.13-6.el5.x86_64.rpm	SHA-256: 7aa9fff13b8fe30982284379a780626e3002b8527c17a1ad2987a87ecb11781b
ia64
tcl-8.4.13-6.el5.ia64.rpm	SHA-256: cd472e08679a4e0139fdafb57f04b1c3b34a5266824dfd2db361ca95ed696369
tcl-debuginfo-8.4.13-6.el5.ia64.rpm	SHA-256: c45fa6a3384d59bd760684f5af5bc3ff95d8abb4b6a6b70399c7a4f90105e89d
tcl-devel-8.4.13-6.el5.ia64.rpm	SHA-256: 1708a082146853cd3c9b2b88bfce2bbd9752523048e497db15987c94375813f6
tcl-html-8.4.13-6.el5.ia64.rpm	SHA-256: 58b8b0f9ee7ad05d56ac387a0e3624022dbf9cb04c40a2dff6064e466668cbbf
i386
tcl-8.4.13-6.el5.i386.rpm	SHA-256: e8bbe5441d7ba3103050533f4eceaac9752b25c210bb0a98c9ed44736e9fa9fb
tcl-debuginfo-8.4.13-6.el5.i386.rpm	SHA-256: 47297032028e4464e356d2a83dad35e8718c15f0b59950b4ee849b9abe9948a1
tcl-devel-8.4.13-6.el5.i386.rpm	SHA-256: 037b3c7c56c6effaf11be195ccb4bd27928b8af05c1c6690972107bb3972a106
tcl-html-8.4.13-6.el5.i386.rpm	SHA-256: 6debc3686a9c5238a381953a88bc8acddb3d715b3a0d8a55f3b852d4c8ad371c

Red Hat Enterprise Linux Workstation 5

SRPM
tcl-8.4.13-6.el5.src.rpm	SHA-256: 2c86b3e9c10c0fa8c47507cf1a94676ee0585c7360ea82ccb2852582a02716dc
x86_64
tcl-8.4.13-6.el5.i386.rpm	SHA-256: e8bbe5441d7ba3103050533f4eceaac9752b25c210bb0a98c9ed44736e9fa9fb
tcl-8.4.13-6.el5.x86_64.rpm	SHA-256: 1f1d1cc4d799acbd218aa5c2ebf2fae122cdf6ebc5153fbd340ed6272a13d4ed
tcl-debuginfo-8.4.13-6.el5.i386.rpm	SHA-256: 47297032028e4464e356d2a83dad35e8718c15f0b59950b4ee849b9abe9948a1
tcl-debuginfo-8.4.13-6.el5.i386.rpm	SHA-256: 47297032028e4464e356d2a83dad35e8718c15f0b59950b4ee849b9abe9948a1
tcl-debuginfo-8.4.13-6.el5.x86_64.rpm	SHA-256: 667b6a4688d764cea6c31b9e255ec884810df3fbf329dbdaf1afbefbc6459639
tcl-debuginfo-8.4.13-6.el5.x86_64.rpm	SHA-256: 667b6a4688d764cea6c31b9e255ec884810df3fbf329dbdaf1afbefbc6459639
tcl-devel-8.4.13-6.el5.i386.rpm	SHA-256: 037b3c7c56c6effaf11be195ccb4bd27928b8af05c1c6690972107bb3972a106
tcl-devel-8.4.13-6.el5.x86_64.rpm	SHA-256: 820f173560ac9de3c54baa30b520db853b830fafed1d01bee93414c200797304
tcl-html-8.4.13-6.el5.x86_64.rpm	SHA-256: 7aa9fff13b8fe30982284379a780626e3002b8527c17a1ad2987a87ecb11781b
i386
tcl-8.4.13-6.el5.i386.rpm	SHA-256: e8bbe5441d7ba3103050533f4eceaac9752b25c210bb0a98c9ed44736e9fa9fb
tcl-debuginfo-8.4.13-6.el5.i386.rpm	SHA-256: 47297032028e4464e356d2a83dad35e8718c15f0b59950b4ee849b9abe9948a1
tcl-debuginfo-8.4.13-6.el5.i386.rpm	SHA-256: 47297032028e4464e356d2a83dad35e8718c15f0b59950b4ee849b9abe9948a1
tcl-devel-8.4.13-6.el5.i386.rpm	SHA-256: 037b3c7c56c6effaf11be195ccb4bd27928b8af05c1c6690972107bb3972a106
tcl-html-8.4.13-6.el5.i386.rpm	SHA-256: 6debc3686a9c5238a381953a88bc8acddb3d715b3a0d8a55f3b852d4c8ad371c

Red Hat Enterprise Linux Desktop 5

SRPM
tcl-8.4.13-6.el5.src.rpm	SHA-256: 2c86b3e9c10c0fa8c47507cf1a94676ee0585c7360ea82ccb2852582a02716dc
x86_64
tcl-8.4.13-6.el5.i386.rpm	SHA-256: e8bbe5441d7ba3103050533f4eceaac9752b25c210bb0a98c9ed44736e9fa9fb
tcl-8.4.13-6.el5.x86_64.rpm	SHA-256: 1f1d1cc4d799acbd218aa5c2ebf2fae122cdf6ebc5153fbd340ed6272a13d4ed
tcl-debuginfo-8.4.13-6.el5.i386.rpm	SHA-256: 47297032028e4464e356d2a83dad35e8718c15f0b59950b4ee849b9abe9948a1
tcl-debuginfo-8.4.13-6.el5.x86_64.rpm	SHA-256: 667b6a4688d764cea6c31b9e255ec884810df3fbf329dbdaf1afbefbc6459639
tcl-html-8.4.13-6.el5.x86_64.rpm	SHA-256: 7aa9fff13b8fe30982284379a780626e3002b8527c17a1ad2987a87ecb11781b
i386
tcl-8.4.13-6.el5.i386.rpm	SHA-256: e8bbe5441d7ba3103050533f4eceaac9752b25c210bb0a98c9ed44736e9fa9fb
tcl-debuginfo-8.4.13-6.el5.i386.rpm	SHA-256: 47297032028e4464e356d2a83dad35e8718c15f0b59950b4ee849b9abe9948a1
tcl-html-8.4.13-6.el5.i386.rpm	SHA-256: 6debc3686a9c5238a381953a88bc8acddb3d715b3a0d8a55f3b852d4c8ad371c

Red Hat Enterprise Linux for IBM z Systems 5

SRPM
tcl-8.4.13-6.el5.src.rpm	SHA-256: 2c86b3e9c10c0fa8c47507cf1a94676ee0585c7360ea82ccb2852582a02716dc
s390x
tcl-8.4.13-6.el5.s390.rpm	SHA-256: 5cc3f209463a1ff0e82f209baf3664e1c8b02c1c4a08b8bd50bc867d00c937a2
tcl-8.4.13-6.el5.s390x.rpm	SHA-256: 1946de5b292662f390d471df131110a00c4a7400be3d911233c203412c5de9d6
tcl-debuginfo-8.4.13-6.el5.s390.rpm	SHA-256: b2c9dff65d4624176e1ef1cd85c971663d74823f34c31209870b96fa79ba32b9
tcl-debuginfo-8.4.13-6.el5.s390x.rpm	SHA-256: b058556d58fd7bc85e29c9db24199b21fcc49cb45ab39e50d0bb4745294d82bb
tcl-devel-8.4.13-6.el5.s390.rpm	SHA-256: 22c5c8f714c7113d445a36721bb709a9819a044b5fc0c770c89c4215bb2476b2
tcl-devel-8.4.13-6.el5.s390x.rpm	SHA-256: 0f92765924d7226de4d14f436249a63824518fe793db2fff21ac6e5581ae9030
tcl-html-8.4.13-6.el5.s390x.rpm	SHA-256: 48d3b10daff8c0a2b53986769134a1d86acac9c06a7fe423ca0a84447a7a5106

Red Hat Enterprise Linux for Power, big endian 5

SRPM
tcl-8.4.13-6.el5.src.rpm	SHA-256: 2c86b3e9c10c0fa8c47507cf1a94676ee0585c7360ea82ccb2852582a02716dc
ppc
tcl-8.4.13-6.el5.ppc.rpm	SHA-256: 9c8980e3fa3387511faaa90ccd6c11e2f483ecf0ed9722d79c157ccd8f1f8298
tcl-8.4.13-6.el5.ppc64.rpm	SHA-256: 88e7bd6dfd32c80b0ac281af8368a8bedefe6c60122b32348d4e6a5b5be7aeeb
tcl-debuginfo-8.4.13-6.el5.ppc.rpm	SHA-256: c419f9e133e819f28b9cc1d942a4d9640943d62c1495ffd28e63e74c11bf3874
tcl-debuginfo-8.4.13-6.el5.ppc64.rpm	SHA-256: b66ec9d620bfd4c57afd32a13cdacf001853ccbb3453289e34e45d03f3b84e98
tcl-devel-8.4.13-6.el5.ppc.rpm	SHA-256: 615f4c4c4a49bde85cc1bfd8666cc923f0cca38d7fdd8995d6bfabd1dac0663e
tcl-devel-8.4.13-6.el5.ppc64.rpm	SHA-256: d3dcfd19a79a8ad6841b4dcb053b5c3f242d6c8136b10e0ac6176998405e5822
tcl-html-8.4.13-6.el5.ppc.rpm	SHA-256: 227ae8727fd09f6413c8e79c082c5f39b97c632b35671427cb8b003dc5574120

Red Hat Enterprise Linux Server from RHUI 5

SRPM
tcl-8.4.13-6.el5.src.rpm	SHA-256: 2c86b3e9c10c0fa8c47507cf1a94676ee0585c7360ea82ccb2852582a02716dc
x86_64
tcl-8.4.13-6.el5.i386.rpm	SHA-256: e8bbe5441d7ba3103050533f4eceaac9752b25c210bb0a98c9ed44736e9fa9fb
tcl-8.4.13-6.el5.x86_64.rpm	SHA-256: 1f1d1cc4d799acbd218aa5c2ebf2fae122cdf6ebc5153fbd340ed6272a13d4ed
tcl-debuginfo-8.4.13-6.el5.i386.rpm	SHA-256: 47297032028e4464e356d2a83dad35e8718c15f0b59950b4ee849b9abe9948a1
tcl-debuginfo-8.4.13-6.el5.x86_64.rpm	SHA-256: 667b6a4688d764cea6c31b9e255ec884810df3fbf329dbdaf1afbefbc6459639
tcl-devel-8.4.13-6.el5.i386.rpm	SHA-256: 037b3c7c56c6effaf11be195ccb4bd27928b8af05c1c6690972107bb3972a106
tcl-devel-8.4.13-6.el5.x86_64.rpm	SHA-256: 820f173560ac9de3c54baa30b520db853b830fafed1d01bee93414c200797304
tcl-html-8.4.13-6.el5.x86_64.rpm	SHA-256: 7aa9fff13b8fe30982284379a780626e3002b8527c17a1ad2987a87ecb11781b
i386
tcl-8.4.13-6.el5.i386.rpm	SHA-256: e8bbe5441d7ba3103050533f4eceaac9752b25c210bb0a98c9ed44736e9fa9fb
tcl-debuginfo-8.4.13-6.el5.i386.rpm	SHA-256: 47297032028e4464e356d2a83dad35e8718c15f0b59950b4ee849b9abe9948a1
tcl-devel-8.4.13-6.el5.i386.rpm	SHA-256: 037b3c7c56c6effaf11be195ccb4bd27928b8af05c1c6690972107bb3972a106
tcl-html-8.4.13-6.el5.i386.rpm	SHA-256: 6debc3686a9c5238a381953a88bc8acddb3d715b3a0d8a55f3b852d4c8ad371c