Perl UTF8 double free memory corruption denial of service
| perl-utf8-dos (41996) |  Medium Risk |
Description:
Perl is vulnerable to a denial of service, caused by a double free memory corruption error. By sending a specially-crafted regular expression containing UTF8 characters, a remote attacker could exploit this vulnerability to cause a denial of service on the affected system.
Note: It may also be possible for this vulnerability to be exploited to execute arbitrary code on the system.
Platforms Affected:
- Debian, Debian Linux 4.0
- IPCop, IPCop 1.4.20
- Larry Wall, Perl 5.8.8
- MandrakeSoft, Mandrake Linux 2007.1 X86_64
- MandrakeSoft, Mandrake Linux 2007.1
- MandrakeSoft, Mandrake Linux 2008.0
- MandrakeSoft, Mandrake Linux 2008.0 X86_64
- MandrakeSoft, Mandrake Linux Corporate Server 3.0
- MandrakeSoft, Mandrake Linux Corporate Server 3.0 X86_64
- MandrakeSoft, Mandrake Linux Corporate Server 4.0
- MandrakeSoft, Mandrake Linux Corporate Server 4.0 X86_64
- MandrakeSoft, Mandrake Multi Network Firewall 2.0
- RedHat, Application Stack v1 for EL AS 4
- RedHat, Application Stack v1 for EL ES 4
- RedHat, Enterprise Linux 3 WS
- RedHat, Enterprise Linux 3 ES
- RedHat, Enterprise Linux 3 AS
- RedHat, Enterprise Linux 3 Desktop
- RedHat, Enterprise Linux 4 AS
- RedHat, Enterprise Linux 4 WS
- RedHat, Enterprise Linux 4 Desktop
- RedHat, Enterprise Linux 4 ES
- RedHat, Enterprise Linux 5 Client
- RedHat, Enterprise Linux 5
- VMware, ESX Server 3.0.1
- VMware, ESX Server 3.0.2
Remedy:
Upgrade to the latest version of Perl (5.10.0-1 or later), available from The Perl Foundation Web site. See References.
For other distributions:
Apply the appropriate update for your system. See References.
Consequences:
Denial of Service
References:
- Debian Bug report logs - #454792, double free and segfault on utf8 containing regexes at http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=454792.
- IPCop Web site, IPCop 1.4.21 released at http://www.ipcop.org/index.php?name=News&file=article&sid=41.
- perlbug #48156, regexp: unicode char causes a 'double free corruption' at http://rt.perl.org/rt3/Public/Bug/Display.html?id=48156.
- The Perl Foundation Web site, The Perl Directory - perl.org at http://www.perl.org/.
- VMSA-2008-0013, Updated ESX packages for OpenSSL, net-snmp, perl at http://www.vmware.com/security/advisories/VMSA-2008-0013.html.
- ASA-2008-317: perl security update (RHSA-2008-0532)
- ASA-2008-361: perl security update (RHSA-2008-0522)
- BID-28928: Perl Unicode '\Q...\E' Quoting Construct Regular Expression Buffer Overflow Vulnerability
- CVE-2008-1927: Double free vulnerability in Perl 5.8.8 allows context-dependent attackers to cause a denial of service (memory corruption and crash) via a crafted regular expression containing UTF8 characters. NOTE: this issue might only be present on certain operating systems.
- DSA-1556: perl -- heap buffer overflow
- FrSIRT/ADV-2008-2265: Avaya Communication Manager Perl Double Free Vulnerability
- FrSIRT/ADV-2008-2424: Avaya Products Perl UTF Parsing Code Execution Vulnerability
- MDVSA-2008:100: Updated perl packages fix denial of service vulnerability
- RHSA-2008-0522: Important: perl security update
- RHSA-2008-0532: Important: perl security update
- SA31208: IPCop update for perl
- SA31328: Avaya Communication Manager Perl Regular Expressions Vulnerability
- SA31467: VMware updates for OpenSSL, net-snmp, and perl
- SA31489: VMware ESXi OpenSSL Vulnerabilities
- SA31604: Avaya Products Perl Regular Expressions Unicode Data Buffer Overflow
- SECTRACK ID: 1020253: Perl UTF8 Regex Processing Double Free Bug May Let Users Execute Arbitrary Code
- SUSE-SR:2008:017: SUSE Security Summary Report
Reported:
Apr 24, 2008
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