SB2019031221 - Ubuntu update for tiff
Published: March 12, 2019 Updated: October 30, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 vulnerabilities.
1) Heap-based buffer over-read (CVE-ID: CVE-2018-10779)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a local attacker to cause DoS condition on the target system.
The weakness exists in the TIFFWriteScanline function in the tif_write.csource code file due to insufficient validation of user-supplied input. A local attacker can use the .bmp2tiff command to execute a specially crafted file, trigger heap-based buffer over-read and cause the service to crash.
2) Heap-based buffer overflow (CVE-ID: CVE-2018-12900)
CWE-ID: CWE-122 - Heap-based Buffer Overflow
CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to heap-based buffer overflow in the cpSeparateBufToContigBuf function in tiffcp.c. A remote unauthenticated attacker can trick the victim into opening a specially crafted TIFF file that can trigger memory corruption and cause the service to crash.
3) NULL pointer dereference (CVE-ID: CVE-2018-17000)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dreference error in the function _TIFFmemcmp at tif_unix.c (called from TIFFWriteDirectoryTagTransferfunction). A remote attacker can create a specially crafted tiff file and perform a denial of service (DoS) attack.
4) NULL pointer dereference (CVE-ID: CVE-2018-19210)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause DoS condition.
The vulnerability exists due to insufficient validation of user-supplied input processed by the TIFFWriteDirectorySec function, as defined in the tif_dirwrite.c source code file. A remote attacker can trick the victim into opening or executing a file that submits malicious input, trigger a NULL pointer dereference and cause the service to crash.
5) Memory leak (CVE-ID: CVE-2019-6128)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to perform DoS attack on the target system.
The vulnerability exists due memory leak in TIFFFdOpen function in tif_unix.c. A remote attacker can trigger memory leak and perform denial of service attack.
6) NULL pointer dereference (CVE-ID: CVE-2019-7663)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to an invalid address dereference condition that exists in the TIFFWriteDirectoryTagTransferfunction, as defined in the libtiff/tif_dirwrite.c source code file. A remote attacker can trick the victim into accessing a Tagged Image File Format (TIFF) file that submits malicious input and trigger a segmentation fault in the cpSeparateBufToContigBuf function in the tiffcp.c file, resulting in a DoS condition.
Remediation
Install update from vendor's website.