perl: NULL pointer dereference via crafted SOCKET, DIRHANDLE or FILEHANDLE value
Published May 13, 2011
5.0
MEDIUMCVSS 2.0
EPSS 8.88%
Description
Perl 5.10.x allows context-dependent attackers to cause a denial of service (NULL pointer dereference and application crash) by leveraging an ability to inject arguments into a (1) getpeername, (2) readdir, (3) closedir, (4) getsockname, (5) rewinddir, (6) tell, or (7) telldir function call.
Affected products
No data.
No data.
Red Hat Enterprise Linux 4
perl
Not affected
Red Hat Enterprise Linux 5
perl
Not affected
Red Hat Enterprise Linux 6
perl
Will not fix
Red Hat Enterprise Linux 7
perl
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | perl | Not affected | n/a |
| Red Hat Enterprise Linux 5 | perl | Not affected | n/a |
| Red Hat Enterprise Linux 6 | perl | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | perl | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat does not consider this problem to be a security issue. Input passed to these functions should be under the full control of the script author, therefore no trust boundary is crossed.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (19 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 8.88% (0.08878) | 95.07th | v5 (v2026.06.15) |
| Jun 15, 2026 | 8.88% (0.08878) | 94.53th | v5 (v2026.06.15) |
| Dec 28, 2025 | 4.16% (0.04159) | 88.32th | v4 (v2025.03.14) |
| Dec 27, 2025 | 5.60% (0.05599) | 90.07th | v4 (v2025.03.14) |
| Nov 20, 2025 | 4.16% (0.04159) | 87.56th | v4 (v2025.03.14) |
| Oct 28, 2025 | 3.02% (0.03022) | 86.11th | v4 (v2025.03.14) |
| Oct 27, 2025 | 4.09% (0.04091) | 88.11th | v4 (v2025.03.14) |
| Oct 1, 2025 | 3.02% (0.03022) | 86.18th | v4 (v2025.03.14) |
| Jul 12, 2025 | 4.25% (0.04254) | 88.31th | v4 (v2025.03.14) |
| Apr 3, 2025 | 3.00% (0.02999) | 85.40th | v4 (v2025.03.14) |
| Mar 30, 2025 | 4.28% (0.04279) | 87.78th | v4 (v2025.03.14) |
| Mar 29, 2025 | 7.00% (0.07005) | 85.44th | v4 (v2025.03.14) |
| Mar 17, 2025 | 4.28% (0.04279) | 88.09th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.68% (0.01682) | 88.19th | v3 (v2023.03.01) |
| Jun 1, 2023 | 2.09% (0.02093) | 87.50th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.06% (0.02061) | 87.24th | v3 (v2023.03.01) |
| Mar 6, 2023 | 6.79% (0.06790) | 92.15th | v2 (v2022.01.01) |
| Apr 1, 2022 | 6.79% (0.06790) | 91.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 6.79% (0.06790) | 79.54th | v2 (v2022.01.01) |
References (10)
- http://securityreason.com/securityalert/8248 third-party-advisoryx_refsource_SREASON
- http://securitytracker.com/id?1025507 vdb-entryx_refsource_SECTRACKExploit
- http://www.securityfocus.com/archive/1/517916/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/47766 vdb-entryx_refsource_BIDExploit
- http://www.toucan-system.com/advisories/tssa-2011-03.txt x_refsource_MISCExploit
- https://access.redhat.com/security/cve/CVE-2011-0761 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=704994 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/67355 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2011-0761
- https://www.cve.org/CVERecord?id=CVE-2011-0761
| Link | Providers | Tags |
|---|---|---|
| http://securityreason.com/securityalert/8248 | third-party-advisoryx_refsource_SREASON | |
| http://securitytracker.com/id?1025507 | vdb-entryx_refsource_SECTRACKExploit | |
| http://www.securityfocus.com/archive/1/517916/100/0/threaded | mailing-listx_refsource_BUGTRAQ | |
| http://www.securityfocus.com/bid/47766 | vdb-entryx_refsource_BIDExploit | |
| http://www.toucan-system.com/advisories/tssa-2011-03.txt | x_refsource_MISCExploit | |
| https://access.redhat.com/security/cve/CVE-2011-0761 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=704994 | Issue Tracking | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/67355 | vdb-entryx_refsource_XF | |
| https://nvd.nist.gov/vuln/detail/CVE-2011-0761 | ||
| https://www.cve.org/CVERecord?id=CVE-2011-0761 |
Change history (0)
No recorded changes yet.