openEuler 20.03 LTS update for libproxy

1) Buffer overflow

EUVDB-ID: #VU47695

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-26154

CWE-ID: CWE-120 - Buffer overflow

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

url.cpp in libproxy through 0.4.15 is prone to a buffer overflow when PAC is enabled, as demonstrated by a large PAC file that is delivered without a Content-length header.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS

libproxy-webkitgtk4: before 0.4.15-14

libproxy-help: before 0.4.15-14

python2-libproxy: before 0.4.15-14

libproxy-devel: before 0.4.15-14

python3-libproxy: before 0.4.15-14

libproxy-debugsource: before 0.4.15-14

libproxy-debuginfo: before 0.4.15-14

libproxy: before 0.4.15-14

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2020-1077

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.