Buffer overflow in quagga (Alpine package)

1) Buffer overflow

EUVDB-ID: #VU44159

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2012-0249

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

Buffer overflow in the ospf_ls_upd_list_lsa function in ospf_packet.c in the OSPFv2 implementation in ospfd in Quagga before 0.99.20.1 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a Link State Update (aka LS Update) packet that is smaller than the length specified in its header.

Mitigation

Install update from vendor's website.

Vulnerable software versions

quagga (Alpine package): 0.99.16-r0 - 0.99.20-r0

CPE2.3

• cpe:2.3:o:alpine:quagga_alpine_package:0.99.20-r0:*:*:*:*:alpine_linux:*:
• cpe:2.3:o:alpine:quagga_alpine_package:0.99.16-r0:*:*:*:*:alpine_linux:*:

External links

http://git.alpinelinux.org/aports/commit/?id=64932f062305fdbd3380b6ebe40023d1d9750707
http://git.alpinelinux.org/aports/commit/?id=293e54c3aba3cb214942257b5935ac00a86d4cf8
http://git.alpinelinux.org/aports/commit/?id=c10cf01bc73b0577a1977fc87aabec4994fad2fb

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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