Buffer overflow in libarchive (Alpine package)

1) Buffer overflow

EUVDB-ID: #VU33327

Risk: Medium

CVSSv3.1: 6.4 [CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2011-1777

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

Multiple buffer overflows in the (1) heap_add_entry and (2) relocate_dir functions in archive_read_support_format_iso9660.c in libarchive through 2.8.5 allow remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted ISO9660 image.

Mitigation

Install update from vendor's website.

Vulnerable software versions

libarchive (Alpine package): 2.8.4-r1

CPE2.3

• cpe:2.3:o:alpine:libarchive_alpine_package:2.8.4-r1:*:*:*:*:alpine_linux:*:

External links

http://git.alpinelinux.org/aports/commit/?id=77453c9a85dc2ecebab6e506f07de51be886215d

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.