ICSA-23-080-07: Siemens SCALANCE Third-Party

CISA's summary

Summary: Multiple vulnerabilities affecting various third-party components of SCALANCE W-700 IEEE 802.11ax devices before V2.0 could allow an attacker to cause a denial of service condition, disclose sensitive data or violate the system integrity. Siemens has released an update for SCALANCE W-700 IEEE 802.11ax and recommends to update to the latest version.

Products, as the advisory lists them

DeSpy has not checked any unit, hardware revision or firmware.

Vulnerabilities in this advisory

• CVE-2018-12886 — CVE-2018-12886 · CWE-209

  stack_protect_prologue in cfgexpand.c and stack_protect_epilogue in function.c in GNU Compiler Collection (GCC) 4.1 through 8 (under certain circumstances) generate instruction sequences when targeting ARM targets that spill the address of the stack protector guard, which allows an attacker to bypass the protection of -fstack-protector, -fstack-protector-all, -fstack-protector-strong, and -fstack-protector-explicit against stack overflow by controlling what the stack canary is compared against.

• CVE-2018-25032 — CVE-2018-25032 · CWE-787

  zlib before 1.2.12 allows memory corruption when deflating (i.e., when compressing) if the input has many distant matches.

• CVE-2021-42373 — CVE-2021-42373 · CWE-476

  A NULL pointer dereference in Busybox's man applet leads to denial of service when a section name is supplied but no page argument is given.

• CVE-2021-42374 — CVE-2021-42374 · CWE-125

  An out-of-bounds heap read in Busybox's unlzma applet leads to information leak and denial of service when crafted LZMA-compressed input is decompressed. This can be triggered by any applet/format that internally supports LZMA compression.

• CVE-2021-42375 — CVE-2021-42375 · CWE-20

  An incorrect handling of a special element in Busybox's ash applet leads to denial of service when processing a crafted shell command, due to the shell mistaking specific characters for reserved characters. This may be used for DoS under rare conditions of filtered command input.

• CVE-2021-42376 — CVE-2021-42376 · CWE-476

  A NULL pointer dereference in Busybox's hush applet leads to denial of service when processing a crafted shell command, due to missing validation after a \x03 delimiter character. This may be used for DoS under very rare conditions of filtered command input.

• CVE-2021-42377 — CVE-2021-42377 · CWE-763

  An attacker-controlled pointer free in Busybox's hush applet leads to denial of service and possible code execution when processing a crafted shell command, due to the shell mishandling the &&& string. This may be used for remote code execution under rare conditions of filtered command input.

• CVE-2021-42378 — CVE-2021-42378 · CWE-416

  A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the getvar_i function.

• CVE-2021-42379 — CVE-2021-42379 · CWE-416

  A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the next_input_file function.

• CVE-2021-42380 — CVE-2021-42380 · CWE-416

  A use-after-free in awk leads to denial of service and possibly code execution when processing a crafted awk pattern in the clrvar function.

• CVE-2021-42381 — CVE-2021-42381 · CWE-416

  A use-after-free in awk leads to denial of service and possibly code execution when processing a crafted awk pattern in the hash_init function.

• CVE-2021-42382 — CVE-2021-42382 · CWE-416

  A use-after-free in awk leads to denial of service and possibly code execution when processing a crafted awk pattern in the getvar_s function.

• CVE-2021-42383 — CVE-2021-42383 · CWE-416

  A use-after-free in awk leads to denial of service and possibly code execution when processing a crafted awk pattern in the evaluate function.

• CVE-2021-42384 — CVE-2021-42384 · CWE-416

  A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the handle_special function.

• CVE-2021-42385 — CVE-2021-42385 · CWE-416

  A use-after-free in awk leads to denial of service and possibly code execution when processing a crafted awk pattern in the evaluate function.

• CVE-2021-42386 — CVE-2021-42386 · CWE-416

  A use-after-free in awk leads to denial of service and possibly code execution when processing a crafted awk pattern in the nvalloc function.

• CVE-2022-23395 — CVE-2022-23395 · CWE-1321

  jQuery Cookie 1.4.1 is affected by prototype pollution, which can lead to DOM cross-site scripting (XSS).

Acknowledgments, as the advisory lists them

• Siemens ProductCERT: reporting these vulnerabilities to CISA.

The advisory's legal notice

Siemens Security Advisories are subject to the terms and conditions contained in Siemens' underlying license terms or other applicable agreements previously agreed to with Siemens (hereinafter "License Terms"). To the extent applicable to information, software or documentation made available in or through a Siemens Security Advisory, the Terms of Use of Siemens' Global Website (https://www.siemens.com/terms_of_use, hereinafter "Terms of Use"), in particular Sections 8-10 of the Terms of Use, shall apply additionally. In case of conflicts, the License Terms shall prevail over the Terms of Use.

Sources

• The advisory at cisa.gov
• The CSAF document (JSON)

DeSpy's copy of this version is dated 2026-09-28.