PT-2011-1237 · Perl · Perl

Jonathan Brossard · Published 2011-05-13 · Updated 2018-10-09 · CVE-2011-0761

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Name of the Vulnerable Software and Affected Versions Perl versions 5.10.x

Description The issue allows context-dependent attackers to cause a denial of service, resulting in a NULL pointer dereference and application crash. This can be achieved by injecting arguments into certain function calls, including getpeername, readdir, closedir, getsockname, rewinddir, tell, or telldir. The vulnerability is related to a NULL pointer dereference in the telldir function of the Perl interpreter, which can be exploited by a remote attacker to cause a denial of service.

Recommendations For Perl version 5.10.x, consider disabling the telldir function as a temporary workaround until a patch is available. Additionally, restrict the ability to inject arguments into the affected function calls to minimize the risk of exploitation.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2022-02609

CVE-2011-0761

Affected Products

Perl

References · 13

• 🔥 https://exploit-db.com/exploits/35725 · Exploit
• 🔥 http://toucan-system.com/advisories/tssa-2011-03.txt · Exploit
• 🔥 http://securityfocus.com/bid/47766 · Exploit
• 🔥 http://securitytracker.com/id?1025507 · Exploit
• https://security-tracker.debian.org/tracker/CVE-2011-0761 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2011-0761 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2011-0761 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2011-0761 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-02609 · Security Note
• https://exchange.xforce.ibmcloud.com/vulnerabilities/67355 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0761 · Note
• http://securityreason.com/securityalert/8248 · Note
• http://securityfocus.com/archive/1/517916/100/0/threaded · Note