CVE-2018-6797
CRITICAL severity · CVSS 9.8 · Out-of-bounds write
9.8CVSS CRITICAL
Summary
An issue was discovered in Perl 5.18 through 5.26. A crafted regular expression can cause a heap-based buffer overflow, with control over the bytes written.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)8%
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://rt.perl.org/Public/Bug/Display.html?id=132227 ↗
Additional information
- NVD record
- https://rt.perl.org/Public/Bug/Display.html?id=132227Patch
- http://www.securitytracker.com/id/1040681Advisory
- http://www.securitytracker.com/id/1042004Advisory
- https://access.redhat.com/errata/RHSA-2018:1192Advisory
- https://security.gentoo.org/glsa/201909-01
- https://usn.ubuntu.com/3625-1/Advisory
- https://www.debian.org/security/2018/dsa-4172Advisory
- https://www.oracle.com/security-alerts/cpujul2020.html