Bug 2218757 (CVE-2023-35862) - CVE-2023-35862 libcoap: buffer over-read via coap_parse_oscore_conf_mem() at coap_oscore.c
Summary: CVE-2023-35862 libcoap: buffer over-read via coap_parse_oscore_conf_mem() at ...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2023-35862
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2218758
Blocks:
TreeView+ depends on / blocked
 
Reported: 2023-06-30 06:22 UTC by TEJ RATHI
Modified: 2023-07-04 07:02 UTC (History)
0 users

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
A vulnerability was discovered in libcoap, caused by a global-buffer-overflow in coap_parse_oscore_conf_mem() function in src/coap_oscore.c. By persuading a victim to open a specially crafted file, a remote attacker could exploit this vulnerability to cause the application to crash.
Clone Of:
Environment:
Last Closed: 2023-07-04 07:02:33 UTC
Embargoed:


Attachments (Terms of Use)

Description TEJ RATHI 2023-06-30 06:22:00 UTC
libcoap 4.3.1 contains a buffer over-read via the function coap_parse_oscore_conf_mem at coap_oscore.c.

https://github.com/obgm/libcoap/tags
https://github.com/obgm/libcoap/issues/1117
https://github.com/obgm/libcoap/pull/1118

Comment 1 TEJ RATHI 2023-06-30 06:22:18 UTC
Created libcoap tracking bugs for this issue:

Affects: fedora-all [bug 2218758]

Comment 2 Product Security DevOps Team 2023-07-04 07:02:31 UTC
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.


Note You need to log in before you can comment on or make changes to this bug.