VulnerabilityModified
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."
HIGH 7.5EPSS 2.55%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.55%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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."
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.55% probability · 84th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- fedoraproject/fedora · perl/perl
- Source
- security@debian.org
References
- http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183592.html
- http://perl5.git.perl.org/perl.git/commitdiff/22b433eff9a1ffa2454e18405a56650f07b385b5Vendor Advisory
- 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/22b433eff9a1ffa2454e18405a56650f07b385b5Vendor Advisory
- 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/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.