Out-of-bounds Write Affecting open-iscsi-devel package, versions <2.1.4-22.14.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

Exploit Maturity
Not Defined
EPSS
0.46% (76th percentile)

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  • Snyk IDSNYK-SLES152-OPENISCSIDEVEL-6358533
  • published3 Mar 2024
  • disclosed5 May 2021

Introduced: 5 May 2021

CVE-2020-17438  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade SLES:15.2 open-iscsi-devel to version 2.1.4-22.14.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream open-iscsi-devel package and not the open-iscsi-devel package as distributed by SLES. See How to fix? for SLES:15.2 relevant fixed versions and status.

An issue was discovered in uIP 1.0, as used in Contiki 3.0 and other products. The code that reassembles fragmented packets fails to properly validate the total length of an incoming packet specified in its IP header, as well as the fragmentation offset value specified in the IP header. By crafting a packet with specific values of the IP header length and the fragmentation offset, attackers can write into the .bss section of the program (past the statically allocated buffer that is used for storing the fragmented data) and cause a denial of service in uip_reass() in uip.c, or possibly execute arbitrary code on some target architectures.

CVSS Scores

version 3.1