Buffer overflow in alpine (Alpine package)

1) Buffer overflow

EUVDB-ID: #VU33086

Risk: Medium

CVSSv4.0: 2.7 [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/E:U/U:Green]

CVE-ID: CVE-2008-5514

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

Off-by-one error in the rfc822_output_char function in the RFC822BUFFER routines in the University of Washington (UW) c-client library, as used by the UW IMAP toolkit before imap-2007e and other applications, allows context-dependent attackers to cause a denial of service (crash) via an e-mail message that triggers a buffer overflow.

Mitigation

Install update from vendor's website.

Vulnerable software versions

putty (Alpine package): 0.62-r0 - 0.63-r0

alpine (Alpine package): 2.00_p73-r0 - 2.00_p84-r1

CPE2.3

• cpe:2.3:o:alpine:putty_alpine_package:0.62-r0:*:*:*:*:alpine_linux:*:2.5
• cpe:2.3:o:alpine:putty_alpine_package:0.63-r0:*:*:*:*:alpine_linux:*:2.6
• cpe:2.3:o:alpine:alpine_alpine_package:2.00_p73-r0:*:*:*:*:alpine_linux:*:2.1
• cpe:2.3:o:alpine:alpine_alpine_package:2.00_p84-r1:*:*:*:*:alpine_linux:*:2.1

External links

https://git.alpinelinux.org/aports/commit/?id=f293739e0db7bbddff5199f74b6150312c16a6cc
https://git.alpinelinux.org/aports/commit/?id=ec56c6104f84980b4387dd935c47ca94cdd468c8
https://git.alpinelinux.org/aports/commit/?id=73cbf1b72f817d729386d4eca4118ffd551f373c
https://git.alpinelinux.org/aports/commit/?id=c38e2a8013d5b57d6c89d6e9dbc2b6e496618b52
https://git.alpinelinux.org/aports/commit/?id=ba489c5e19754da1c71031b7c462b9614518d2ef
https://git.alpinelinux.org/aports/commit/?id=ad70614b79945bf2bed296b6ad737bc871609a1c

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.