Vulnerability in GNU Gcc
CVE-2022-27943
libiberty/rust-demangle.c in GNU GCC 11.2 allows stack consumption in demangle_const, as demonstrated by nm-new.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.009 (58.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- GNU Gcc — versions 11.2
- Fedoraproject Fedora — versions 36
Weakness classification (CWE)
Public proof-of-concept exploits
References
- sourceware.org/bugzilla/show_bug.cgi (Exploit, Third Party Advisory, Issue Tracking)
- gcc.gnu.org/bugzilla/show_bug.cgi (Exploit, Issue Tracking, Vendor Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2022-27943?
- CVE-2022-27943 is a medium-severity vulnerability in GNU Gcc, classified under Uncontrolled Recursion. CVSS score: 5.5/10. Published 2022-03-26.
- How severe is CVE-2022-27943?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2022-27943 known to be exploited?
- 17 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.