Multiple vulnerabilities in Sourceware elfutils



| Updated: 2020-08-08
Risk High
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2018-16402
CVE-2018-16403
CWE-ID CWE-415
CWE-125
Exploitation vector Network
Public exploit N/A
Vulnerable software
 elfutils
Server applications / File servers (FTP/HTTP)

Vendor Sourceware

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Double Free

EUVDB-ID: #VU36733

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2018-16402

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

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

libelf/elf_end.c in elfutils 0.173 allows remote attackers to cause a denial of service (double free and application crash) or possibly have unspecified other impact because it tries to decompress twice.

Mitigation

Install update from vendor's website.

Vulnerable software versions

elfutils: 0.173

CPE2.3 External links

https://lists.opensuse.org/opensuse-security-announce/2019-06/msg00052.html
https://access.redhat.com/errata/RHSA-2019:2197
https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0@%3Cissues.bookkeeper.apache.org%3E
https://sourceware.org/bugzilla/show_bug.cgi?id=23528
https://usn.ubuntu.com/4012-1/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

2) Out-of-bounds read

EUVDB-ID: #VU36734

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2018-16403

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

libdw in elfutils 0.173 checks the end of the attributes list incorrectly in dwarf_getabbrev in dwarf_getabbrev.c and dwarf_hasattr in dwarf_hasattr.c, leading to a heap-based buffer over-read and an application crash.

Mitigation

Install update from vendor's website.

Vulnerable software versions

elfutils: 0.173

CPE2.3 External links

https://lists.opensuse.org/opensuse-security-announce/2019-06/msg00052.html
https://access.redhat.com/errata/RHSA-2019:2197
https://sourceware.org/bugzilla/show_bug.cgi?id=23529
https://sourceware.org/git/?p=elfutils.git;a=commit;h=6983e59b727458a6c64d9659c85f08218bc4fcda
https://usn.ubuntu.com/4012-1/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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



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