OpenSUSE Linux update for libproxy



Published: 2020-10-17
Risk High
Patch available YES
Number of vulnerabilities 2
CVE ID CVE-2020-25219
CVE-2020-26154
CWE ID CWE-787
CWE-120
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Opensuse
Operating systems & Components / Operating system

Vendor Novell

Security Advisory

1) Out-of-bounds write

Risk: Medium

CVSSv3: 6.5 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-25219

CWE-ID: CWE-787 - Out-of-bounds Write

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

url::recvline in url.cpp in libproxy 0.4.x through 0.4.15 allows a remote HTTP server to trigger uncontrolled recursion via a response composed of an infinite stream that lacks a newline character. This leads to stack exhaustion.

Mitigation

Update the affected packages.

Vulnerable software versions

Opensuse: 15.2

CPE External links

https://lists.opensuse.org/opensuse-security-announce/2020-10/msg00033.html

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.

2) Buffer overflow

Risk: High

CVSSv3: 8.5 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-26154

CWE-ID: CWE-120 - Buffer Copy without Checking Size of Input ('Classic 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

Update the affected packages.

Vulnerable software versions

Opensuse: 15.2

CPE External links

https://lists.opensuse.org/opensuse-security-announce/2020-10/msg00033.html

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.