CVE-2022-27943
libiberty/rust-demangle.c in GNU GCC 11.2 allows stack consumption in demangle_const, as demonstrated by nm-new.
02 Description
libiberty/rust-demangle.c in GNU GCC 11.2 allows stack consumption in demangle_const, as demonstrated by nm-new.
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.95% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 61.0% of scored records. A rank, not a probability.
- NVD base score
- 5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-10-14.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2022-03-26 00:00Z4 YR AGO
- Last updated
- 2026-10-14 16:29Z15 DAYS AGO
- Reserved
- 2022-03-26
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.5)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Weaknesses
- Data version
- 5.2
- Document digest
- 4e45bb75cd2ae6b590417c054e8f6ecf60ddb87a16a8efb99bca1c5399dac77d
05 Affected products
06 References
- sourceware.orghttps://sourceware.org/bugzilla/show_bug.cgi?id=28995
- gcc.gnu.orghttps://gcc.gnu.org/bugzilla/show_bug.cgi?id=105039
- lists.fedoraproject.orgFEDORA-2022-c9a1fd5370https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H424YXGW7OKXS2NCAP35OP6Y4P4AW6VG/
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-398330.html
07 Fixed in
Debian 12
- gcc-12 No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- gcc-12 No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- gcc-12 No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- gcc-mingw-w64 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- gcc-3.3 No fix yet
- gcc-4.7 No fix yet
- gcc-4.7-armel-cross No fix yet
- gcc-4.7-armhf-cross No fix yet
- gcc-4.8-arm64-cross No fix yet
- gcc-4.8-armhf-cross No fix yet
- gcc-4.8-powerpc-cross No fix yet
- gcc-4.8-ppc64el-cross No fix yet
- gcc-arm-linux-androideabi No fix yet
- gcc-arm-none-eabi No fix yet
- gcc-avr No fix yet
- gcc-h8300-hms No fix yet
- gcc-i686-linux-android No fix yet
- gcc-m68hc1x No fix yet
- gcc-mingw-w64 No fix yet
- gcc-msp430 No fix yet
- gcc-opt No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- gcc-7-cross No fix yet
- gcc-7-cross-ports No fix yet
- gcc-8-cross No fix yet
- gcc-arm-none-eabi No fix yet
- gcc-avr No fix yet
- gcc-h8300-hms No fix yet
- gcc-m68hc1x No fix yet
- gcc-mingw-w64 No fix yet
- gcc-msp430 No fix yet
- gcc-opt No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- gcc-8-cross No fix yet
- gcc-arm-none-eabi No fix yet
- gcc-avr No fix yet
- gcc-h8300-hms No fix yet
- gcc-m68hc1x No fix yet
- gcc-mingw-w64 No fix yet
- gcc-msp430 No fix yet
- gcc-opt No fix yet
- gcc-snapshot No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- binutils No fix yet
- gcc-11 No fix yet
- gcc-12 No fix yet
- gcc-arm-none-eabi No fix yet
- gcc-avr No fix yet
- gcc-h8300-hms No fix yet
- gcc-m68hc1x No fix yet
- gcc-mingw-w64 No fix yet
- gcc-msp430 No fix yet
- gcc-opt No fix yet
- gcc-snapshot No fix yet
- gdb No fix yet
- libiberty No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- gcc-11 No fix yet
- gcc-12 No fix yet
- gcc-arm-none-eabi No fix yet
- gcc-avr No fix yet
- gcc-h8300-hms No fix yet
- gcc-mingw-w64 No fix yet
- gcc-opt No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 25.10
- gcc-11 No fix yet
- gcc-12 No fix yet
- gcc-arm-none-eabi No fix yet
- gcc-avr No fix yet
- gcc-h8300-hms No fix yet
- gcc-mingw-w64 No fix yet
- gcc-opt No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.04 LTS
- gcc-11 No fix yet
- gcc-12 No fix yet
- gcc-arm-none-eabi No fix yet
- gcc-avr No fix yet
- gcc-h8300-hms No fix yet
- gcc-mingw-w64 No fix yet
- gcc-opt No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.10
- gcc-11 No fix yet
- gcc-12 No fix yet
- gcc-arm-none-eabi No fix yet
- gcc-avr No fix yet
- gcc-h8300-hms No fix yet
- gcc-mingw-w64 No fix yet
- gcc-opt No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.