Vulnerability Report

CVE-2015-8853

Title: Perl Denial of Service (DoS)

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2015-8853.

CWE Category CWE-20
Published Date May 25, 2016
Modified Date Jun 17, 2026
Exploit Status Not Found
Score 7.5 CVSS v3.0
Exploit Probability (EPSS)
2.55%

Vulnerability Summary

CVE-2015-8853: The (1) S_reghop3, (2) S_reghop4, and (3) S_reghopmaybe3 functions in regexec.c in Perl before 5.24.0 allow context-dependent attackers to cause a denial of service (infinite loop) via crafted utf-8 data, as demonstrated by "a\x80."

Impacted Vendors

P
perl 1
L
larry_wall 1

Reference Links

http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183592.html http://perl5.git.perl.org/perl.git/commitdiff/22b433eff9a1ffa2454e18405a56650f07b385b5 http://www.openwall.com/lists/oss-security/2016/04/20/5 http://www.openwall.com/lists/oss-security/2016/04/20/7 http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html http://www.securityfocus.com/bid/86707 https://bugzilla.redhat.com/show_bug.cgi?id=1329106 https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731 https://rt.perl.org/Public/Bug/Display.html?id=123562 https://security.gentoo.org/glsa/201701-75 https://usn.ubuntu.com/3625-1/ https://usn.ubuntu.com/3625-2/ http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183592.html http://perl5.git.perl.org/perl.git/commitdiff/22b433eff9a1ffa2454e18405a56650f07b385b5 http://www.openwall.com/lists/oss-security/2016/04/20/5 http://www.openwall.com/lists/oss-security/2016/04/20/7 http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html http://www.securityfocus.com/bid/86707 https://bugzilla.redhat.com/show_bug.cgi?id=1329106 https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731 https://rt.perl.org/Public/Bug/Display.html?id=123562 https://security.gentoo.org/glsa/201701-75 https://usn.ubuntu.com/3625-1/ https://usn.ubuntu.com/3625-2/
CVSS v3.0
Source Entity [email protected]
Severity HIGH
7.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
5.0
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:N/I:N/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2015-8853 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Stack

No specific products linked.