Medium
retroarch, salmon — security advisory
An issue was discovered in cpp-peglib through v0.1.12. A NULL pointer dereference exists in the peg::AstOptimizer::optimize() located in peglib.h. It allows an attacker to cause Denial of Service.
- Products
- retroarch, salmon
- Affected versions
- 1.10.2+ds1-1, 1.10.2+ds1-1build1, 1.10.2+ds1-1build2, 1.10.3+ds1-1, 1.10.3+ds1-3, 1.14.0+dfsg-1build1, 1.15.0+dfsg-1, 1.16.0.3+dfsg-1, 1.18.0+dfsg-1, 1.18.0+dfsg-1ubuntu0.1~esm1, 1.20.0+dfsg-2build1, 1.20.0+dfsg-2build2, 1.20.0+dfsg-3, 1.20.0+dfsg-3ubuntu0.1, 1.22.2+dfsg-1, 1.22.2+dfsg-2, 1.22.2+dfsg-2build1, 1.22.2+dfsg-2ubuntu1, 1.4.0+ds1-1build1
- Fixed versions
- Not specified
- CVEs
- CVE-2020-23914
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 00:37 UTC · Revision 1
Source evidence
An issue was discovered in cpp-peglib through v0.1.12. A NULL pointer dereference exists in the peg::AstOptimizer::optimize() located in peglib.h. It allows an attacker to cause Denial of Service.
osv:UBUNTU-CVE-2020-23914
salmon
Fixed versions: Not specified
salmon
Fixed versions: Not specified
retroarch
Fixed versions: Not specified
retroarch
Fixed versions: Not specified
salmon
Fixed versions: Not specified
retroarch
Fixed versions: Not specified
salmon
Fixed versions: Not specified
retroarch
Fixed versions: Not specified
salmon
Fixed versions: Not specified
Complete source record
{
"id": "5d96917c0ca61d4f246b00378bd16eade8748d4292b0535f9682eb3cf8afbc75",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2020-23914",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2020-23914",
"summary": "An issue was discovered in cpp-peglib through v0.1.12. A NULL pointer dereference exists in the peg::AstOptimizer::optimize() located in peglib.h. It allows an attacker to cause Denial of Service.",
"evidence": "osv:UBUNTU-CVE-2020-23914",
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{
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"evidence": "/affected/7/versions"
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{
"value": "1.22.2+dfsg-2build1",
"evidence": "/affected/7/versions"
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{
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},
{
"name": {
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"evidence": "/affected/8/package/name"
},
"prerequisites": [],
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"affected_versions": [
{
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"evidence": "/affected/8/versions"
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{
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"severity": "medium",
"structured": {
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"aliases": [
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"metrics": [
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"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
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"affected": [
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"package": {
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"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"1.4.0+ds1-1build1"
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"database_specific": {
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},
"ecosystem_specific": {
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},
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"1.10.2+ds1-1build1",
"1.10.2+ds1-1build2"
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"database_specific": {
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},
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"package": {
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"ecosystem": "Ubuntu:Pro:24.04:LTS"
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"versions": [
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"1.15.0+dfsg-1",
"1.16.0.3+dfsg-1",
"1.18.0+dfsg-1",
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],
"modified": "2026-10-17T12:55:52.430361780Z",
"provider": "osv",
"upstream": [
"CVE-2020-23914"
],
"references": [
"https://ubuntu.com/security/CVE-2020-23914",
"https://github.com/yhirose/cpp-peglib/commit/0061f393de54cf0326621c079dc2988336d1ebb3",
"https://github.com/yhirose/cpp-peglib/issues/121",
"https://www.cve.org/CVERecord?id=CVE-2020-23914"
]
},
"related_cves": [
{
"value": "CVE-2020-23914",
"evidence": "/upstream"
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],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 354199,
"published_at": "2021-04-21T18:15:00+00:00"
}