Buffer overflow in Apple Xcode
CVE-2019-3855
An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way packets are read from the server. A remote attacker who compromises a SSH server may be able to execute code on the clien…
Vulnerability class: Integer Overflow
EPSS: 0.092 (94.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Apple Xcode
- Libssh2
- Netapp Ontap_select_deploy_administration_utility
- Oracle Peoplesoft_enterprise_peopletools — versions 8.56, 8.57
- The Libssh2 Project — versions 1.8.1
- Debian Debian_linux — versions 8.0, 9.0
- Fedoraproject Fedora — versions 28, 29, 30
- Opensuse Leap — versions 42.3
- Redhat Enterprise_linux — versions 8.0
- Redhat Enterprise_linux_desktop — versions 7.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (mailing-list, x_refsource_MLIST, Patch, Mailing List, Third Party Advisory)
- secalert@redhat.com (mailing-list, x_refsource_BUGTRAQ, Mailing List, Third Party Advisory)
- secalert@redhat.com (Patch, x_refsource_MISC, Vendor Advisory)
- secalert@redhat.com (x_refsource_CONFIRM, Patch, Third Party Advisory, Issue Tracking)
- secalert@redhat.com (VDB Entry, Third Party Advisory, x_refsource_MISC)
- secalert@redhat.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- secalert@redhat.com (x_refsource_FEDORA, vendor-advisory)
- secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory)
- secalert@redhat.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-3855?
- CVE-2019-3855 is a high-severity vulnerability in Apple Xcode, classified under Integer Overflow or Wraparound. CVSS score: 8.8/10. Published 2019-03-21.
- How severe is CVE-2019-3855?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2019-3855 known to be exploited?
- 9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.