Denial of Service Vulnerability in GNU C Library (glibc) Versions 2.32 and Earlier
CVE-2021-3326

7.5HIGH

Key Information:

Vendor
Gnu
Status
Glibc
Vendor
CVE Published:
27 January 2021

Summary

The iconv function in the GNU C Library (glibc) 2.32 and earlier is susceptible to a denial of service attack when it encounters invalid input sequences in the ISO-2022-JP-3 encoding. This vulnerability causes an assertion failure in the code, leading to an abortion of the program. Exploitation of this flaw could disrupt services dependent on this library, impacting the availability of applications that rely on it for character set conversion.

References

https://sourceware.org/bugzilla/show_bug.cgi?id=27256
https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=7d...
http://www.openwall.com/lists/oss-security/2021/01/28/2
mailing-list

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.