PT-2019-15838 · Illumos · Illumos

Dan Mcdonald · Published 2019-11-29 · Updated 2024-03-05 · CVE-2019-19396

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions illumos versions prior to r151030y

Description The issue allows a kernel crash via an application with multiple threads calling sendmsg concurrently over a single socket. This is because uts/common/inet/ip/ip attr.c mishandles conn ixa dereferences.

Recommendations For versions prior to r151030y, update to r151030y or later to resolve the issue. As a temporary workaround, consider restricting concurrent sendmsg calls over a single socket to minimize the risk of exploitation.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2019-19396

Affected Products

Illumos

References · 5

• https://osv.dev/vulnerability/CVE-2019-19396 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-19396 · Security Note
• https://omniosce.org/article/030y-028ay-022dw.html · Vendor Advisory
• https://illumos.org/issues/11556 · Note
• https://twitter.com/Esparta6108713/status/1765008723721036017 · Twitter Post