Vulnerability · Published Aug 31, 2022 · Assigned by mitre
CVE-2022-39046
High 7.5
In plain English
A high-severity security flaw in the glibc package (Ubuntu). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.9% (higher than 80% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)1.9%top 20.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An issue was discovered in the GNU C Library (glibc) 2.36. When the syslog function is passed a crafted input string larger than 1024 bytes, it reads uninitialized memory from the heap and prints it to the target log file, potentially revealing a portion of the contents of the heap.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:22.04:LTS | glibc | 2.35-0ubuntu3.1 | UBUNTU-CVE-2022-39046 |
Affected products (as reported)
References
- https://sourceware.org/bugzilla/show_bug.cgi?id=29536
- https://security.netapp.com/advisory/ntap-20221104-0002/
- GLSA-202310-03 vendor-advisory
- [oss-security] 20240130 Re: CVE-2023-6246: Heap-based buffer overflow in the glibc's syslog() mailing-list
- [oss-security] 20240130 CVE-2023-6246: Heap-based buffer overflow in the glibc's syslog() mailing-list
- http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html
- 20240204 CVE-2023-6246: Heap-based buffer overflow in the glibc's syslog() mailing-list