In ZZIPlib 0.13.67, there is a bus error (when handling a disk64_trailer seek value) caused by loading of a misaligned address in the zzip_disk_findfirst function of zzip/mmapped.c.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - In ZZIPlib 0.13.67, there is a bus error (when handling a disk64_trailer seek value) caused by loading of     a misaligned address in the zzip_disk_findfirst function of zzip/mmapped.c. (CVE-2018-6542)

Note that Nessus relies on the presence of the package as reported by the vendor.

NIST reports (by search in the range 2017/01/01 - 2018/07/06) :

17 security fixes in this release :

- Heap-based buffer overflow in the __zzip_get32 function in fetch.c.

- Heap-based buffer overflow in the __zzip_get64 function in fetch.c.

- Heap-based buffer overflow in the zzip_mem_entry_extra_block function in memdisk.c.

- The zzip_mem_entry_new function in memdisk.c allows remote attackers to cause a denial of service (out-of-bounds read and crash) via a crafted ZIP file.

- The prescan_entry function in fseeko.c allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via crafted ZIP file.

- The zzip_mem_entry_new function in memdisk.c cause a NULL pointer dereference and crash via a crafted ZIP file.

- seeko.c cause a denial of service (assertion failure and crash) via a crafted ZIP file.

- A segmentation fault caused by invalid memory access in the zzip_disk_fread function because the size variable is not validated against the amount of file->stored data.

- A memory alignment error and bus error in the
__zzip_fetch_disk_trailer function of zzip/zip.c.

- A bus error caused by loading of a misaligned address in the zzip_disk_findfirst function.

- An uncontrolled memory allocation and a crash in the
__zzip_parse_root_directory function.

- An invalid memory address dereference was discovered in zzip_disk_fread in mmapped.c.

- A memory leak triggered in the function zzip_mem_disk_new in memdisk.c.

This update for zziplib fixes the following issues :

Security issue fixed :

  - CVE-2018-6542: Reject file if the size of the central     directory is too big and display an error message     (bsc#1079094).

This update was imported from the SUSE:SLE-12:Update update project.

This update for zziplib fixes the following issues: Security issue fixed :

  - CVE-2018-6542: Reject file if the size of the central     directory is too big and display an error message     (bsc#1079094).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
259452	Linux Distros Unpatched Vulnerability : CVE-2018-6542	Nessus	Misc.	medium
110969	FreeBSD : zziplib - multiple vulnerabilities (7764b219-8148-11e8-aa4d-000e0cd7b374)	Nessus	FreeBSD Local Security Checks	medium
110392	openSUSE Security Update : zziplib (openSUSE-2018-560)	Nessus	SuSE Local Security Checks	medium
110342	SUSE SLED12 Security Update : zziplib (SUSE-SU-2018:1507-1)	Nessus	SuSE Local Security Checks	medium

Detections

Analytics

CVE-2018-6542

medium

Tenable Plugins

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medium

medium