VulnerabilityModified
CVE-2018-6797
A crafted regular expression can cause a heap-based buffer overflow, with control over the bytes written.
CRITICAL 9.8EPSS 6.60%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (6.60%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 6.60% probability · 93th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- debian/debian linux · perl/perl · canonical/ubuntu linux · redhat/enterprise linux server · redhat/enterprise linux workstation
- Source
- cve@mitre.org
References
- http://www.securitytracker.com/id/1040681Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1042004Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:1192Third Party Advisory
- https://rt.perl.org/Public/Bug/Display.html?id=132227Patch, Vendor Advisory
- https://security.gentoo.org/glsa/201909-01
- https://usn.ubuntu.com/3625-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4172Third Party Advisory
- https://www.oracle.com/security-alerts/cpujul2020.html
- http://www.securitytracker.com/id/1040681Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1042004Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:1192Third Party Advisory
- https://rt.perl.org/Public/Bug/Display.html?id=132227Patch, Vendor Advisory
- https://security.gentoo.org/glsa/201909-01
- https://usn.ubuntu.com/3625-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4172Third Party Advisory
- https://www.oracle.com/security-alerts/cpujul2020.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.