openEuler update for libtiff

1) Out-of-bounds read

EUVDB-ID: #VU63795

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-22844

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a boundary condition in the _TIFFmemcpy() function in tif_unix.c in certain situations involving a custom tag and 0x0200 as the second word of the DE field. A remote attacker can pass a specially crafted file and perform a denial of service attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS SP3

libtiff-help: before 4.1.0-5

libtiff-devel: before 4.1.0-5

libtiff-debuginfo: before 4.1.0-5

libtiff-debugsource: before 4.1.0-5

libtiff: before 4.1.0-5

CPE2.3

• cpe:2.3:o:openeuler:openeuler:20.03:LTS SP1:*:*:*:*:*:*
• cpe:2.3:o:openeuler:openeuler:20.03:LTS SP2:*:*:*:*:*:*
• cpe:2.3:o:openeuler:openeuler:20.03:LTS SP3:*:*:*:*:*:*
• cpe:2.3:a:openeuler:libtiff-help:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libtiff-devel:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libtiff-debuginfo:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libtiff-debugsource:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libtiff:*:*:*:*:*:openeuler:*:*

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1586

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.