Detections
Analytics
EulerOS 2.0 SP11 : libtiff (EulerOS-SA-2026-4251)
critical Nessus Plugin ID 364975
Synopsis
The remote EulerOS host is missing multiple security updates.Description
According to the versions of the libtiff packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :An integer overflow in the libtiff rgb2ycbcr utility's cvtRaster() function when computing strip buffer sizes can result in an undersized heap allocation and subsequent heap-based buffer overflow during YCbCr conversion of a crafted TIFF image(CVE-2026-52492)
An issue in libtiff 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows an attacker to execute arbitrary code via the process_command_opts() function in tools/tiffcrop.c(CVE-2026-52490)
['Hi,\n\nI would like to disclose CVE-2026-36849, a denial of service vulnerability\nin libtiff.\n\n== Summary ==\n\nAn issue in libtiff v4.7.1 allows an attacker to cause a denial of service\nvia a crafted TIFF file containing a large SamplesPerPixel tag value.\n\n== Affected Versions ==\n\nlibtiff v4.7.1 and prior\n\n== Patch ==', '== References ==\n\n- CVE: CVE-2026-36849\n- Issue:', 'Regards,\nSatriyo Utomo\n(aleens-lab)'](CVE-2026-36849)
A flaw was found in libtiff. A remote attacker could exploit this vulnerability by providing a specially crafted PixarLog-compressed TIFF image. This issue occurs when decoding Pixarlog codec images with the PIXARLOGDATAFMT_8BITABGR output format and a specific stride value, leading to a heap-based buffer overflow. This could potentially result in arbitrary code execution or a denial of service (DoS).(CVE-2026-12912)
Tenable has extracted the preceding description block directly from the EulerOS libtiff security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the affected libtiff packages.See Also
Plugin Details
Severity: Critical
ID: 364975
File Name: EulerOS_SA-2026-4251.nasl
Version: 1.1
Type: Local
Family: Huawei Local Security Checks
Published: 10/12/2026
Updated: 10/12/2026
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.9
Percentile: 58.1
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2026-52490
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:huawei:euleros:2.0, p-cpe:/a:huawei:euleros:libtiff-devel, p-cpe:/a:huawei:euleros:libtiff-help, p-cpe:/a:huawei:euleros:libtiff
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/sp
Excluded KB Items: Host/EulerOS/uvp_version
Exploit Ease: No known exploits are available
Patch Publication Date: 10/10/2026
Vulnerability Publication Date: 6/29/2026
Reference Information
CVE: CVE-2026-12912, CVE-2026-36849, CVE-2026-52490, CVE-2026-52492
IAVA: 2026-A-0670